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Serial Hardware and Software for Windows User Manual

1. AnA AnA nanan E 8 8 9 9 89 Figure 6 2 Device Manager for AT Serial Board Ports NI Serial Hardware and Software for Windows 6 4 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration Verify the hardware resources as follows a Inthe Device Manager under Multi function adapters double click a serial board b Click the Resources tab If the resources were assigned properly the Resources tab shows which resources are assigned to your serial ports c Repeat steps 5a and 5b until you have verified the resources for each board Optional To determine which physical port is associated with COMx note the Port 1 Port 2 etc entries next to the COM numbers For all serial hardware PORT refers to the top port PORT refers to the next port down and so on To run the diagnostic utility select Start Programs National Instruments NI Serial Diagnostics The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem After you verify the hardware and s
2. a e Action View gt 2 My Computer Computer amp Disk drives Display adapters 23 DYD CD ROM drives Floppy disk controllers amp Floppy disk drives IDE ATA ATAPI controllers Keyboards a Mice and other pointing devices amp 88 Monitors gt Multifunction adapters EWAN I AT 232 4 Multi function Parent Network adapters Disable 5 9 Ports COM amp LPT Communications Port COM3 amp 55 8 9 8 FE 2 9 Scan for hardware changes Properties 5 m F N I AT 232 4 Shared IRQ Comm F N I AT 232 4 Shared IRQ Communications Port COM25 F N I AT 232 4 Shared IRQ Communications Port COM26 oy Printer Port LPT1 qp Sound video and game controllers Figure C 10 Selecting an Interface to Uninstall National Instruments Corporation C 19 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software Windows Me 9x 5 Choose the Uninstall option 6 Inthe Confirm Device Removal dialog box click the OK button to remove the hardware information or click the Cancel button to cancel your request Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software
3. Hardware Platform Maximum Baud Rate PCI PXI AT 232 PCMCIA 232 4 115 2 kbits s All other PCMCIA 921 6 kbits s AT 485 115 2 kbits s USB 232 230 4 kbits s PCI PXI USB 485 460 8 kbits s Older versions of the serial hardware may support lower maximum baud rates The NI Serial software also includes a configuration utility which is fully integrated into the Windows 2000 XP Me 9x Device Manager and Windows NT Control Panel Its port Settings view indicates the maximum baud rate your hardware supports For more information about software specifications refer to Appendix E Specifications National Instruments Corporation 1 9 NI Serial Hardware and Software for Windows Chapter 1 Introduction The NI Serial software includes the following components e Device driver e Diagnostic utility e Configuration utility Product manual Time Saving Development Tools Your kit includes either the NI Serial software for Windows 2000 NT XP Me 9x or NI Serial USB software for Windows 2000 XP In addition you can order the Measurement Studio or LabVIEW software from National Instruments to speed your application development time and make it easier to communicate with your instruments LabVIEW is an easy to use graphical programming environment you can use to acquire data from thousands of different instruments including IEEE 488 2 devices VXI devices serial devices PLCs and plug in data acquisition boards After
4. Close Cancel Figure 0 2 Ports List in Device Manager Click the Remove button Click the OK button to remove the serial hardware information Repeat steps 5 through 7 until you have removed all serial interfaces Click the Refresh button Windows Me 9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes Your operating system Windows Me 9x may show the Windows Default Driver option If so make sure the Windows Default Driver is selected and click the OK button If the Windows Default Driver option is not shown the installation continues automatically D 10 ni com Appendix D Troubleshooting and Common Questions AT and PCMCIA Hardware If Windows does not detect your serial hardware correctly or you have been using your serial hardware with the default Windows Me 9x serial driver or an older version of the NI Serial software Windows 9 does not display the New Hardware Found dialog box To fix this problem complete the following steps 1 2 3 4 5 Select Start Settings Control Panel Double click the System icon Select the Device Manager tab Click the View devices by type button Double click the Ports COM amp LPT icon to display a list of all ports that Windows Me 9x recognizes If you have already installed the hardware double click Other Devices to display where Windows Me 9x lists the ports it does not recognize Select a National
5. National Instruments Corporation A 9 NI Serial Hardware and Software for Windows Serial Port Information RS 232 This appendix describes the RS 232 RS 422 and RS 485 standards and explains some of the issues involved with these types of serial communication Table B 1 lists the features of the RS 232 RS 422 and RS 485 standards Table B 1 RS 232 RS 422 and RS 485 Features Feature RS 232 RS 422 RS 485 Type of Single ended Differential Differential transmission lines Maximum number 1 1 32 of drivers Maximum number 1 10 32 of receivers Maximum cable 50 ft 4 000 ft 4 000 ft length Maximum data rate 20 kbytes s 10 Mbytes s 10 Mbytes s Maximum CMV 25 7 12 to 7 V Driver output 5 to 25 V 2to6V 1 5to6 V Driver load 23 100 Q 60 Q National Instruments Corporation 1 As specified in ANSI EIA 232 D Standard Interface Between Data Terminal Equipment and Data Circuit Terminating Equipment Employing Serial Binary Data Interchange RS 232 standardizes serial communication between computers and between computer terminals and modems Many applications use the RS 232 standard to interface peripherals to personal computers RS 232 uses transmission lines in which the state of each signal is represented by referencing the voltage level of a single line to ground RS 232 was designed for serial communication up to NI Serial Hardware and Softw
6. FIFO Enabled Receive FIFO size 1 Low 8 High 60 Transmit FIFO size i Low 8 High 56 Cancel Resouces Figure 3 11 General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the logical COMx name of the selected port Transceiver Mode The Transceiver Mode list box shows the transceiver mode in use and applies only to RS 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware FIFO Enabled You can use the FIFO Enabled checkbox to enable or disable the FIFO buffers on the selected port FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver NI Serial Hardware and Software for Windows 3 20 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration FIFO Buffer Size The Receive FIFO size control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit FIFO size control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e ftransfer rates are high you can lower the Receive FIFO size value to prevent over
7. National Instruments Corporation 6 23 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration FIFO Buffer Size FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The receiver FIFO trigger denotes the number of characters received in the FIFO before the PC is interrupted to read the data The transmit FIFO trigger denotes the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data Consider the following points when selecting FIFO settings e Youcan select larger FIFO settings to reduce the number of interrupts and therefore minimize system overhead e ftransferrates are high you can lower receive FIFO settings to reduce the number of interrupts and therefore prevent overrun errors due to interrupt latency e fdata transfer sizes are small selecting receive FIFO settings just above data sizes can reduce efficiency so select lower settings Resources Click the Resources button to display the resource configuration dialog box for the port For more information on resource configuration refer to the next section Resource Settings Resource Settings The following sections explain the resource configuration options for each serial interface NI Serial Hardware and Software for Windows 6 24 ni com Chapter 6 AT Boards Shared IRQ AT Serial Hardware Insta
8. ps amp me J Figure B 1 Typical Full Duplex System Half Duplex A typical half duplex multidrop bus architecture also involves a master slave protocol However in a half duplex system all transmitters and receivers are connected to the same transmission line A half duplex system is often referred to as a two wire system Figure B 2 shows a typical half duplex system Y Slave 1 Slave 2 Slave n Rx Pis N MASTER A Figure B 2 Typical Half Duplex System RS 485 Termination Because each differential pair of wires is a transmission line you must properly terminate the line to prevent reflections A common method of terminating a two wire multidrop RS 485 network is to install terminating resistors at each end of the multidrop network If you daisy chained multiple instruments together you need a terminating resistor at only the first and last instruments The terminating resistor should match the characteristic impedance of the transmission line typically 100 to 120 You can order an optional DB 9 RS 485 termination connector that NI Serial Hardware and Software for Windows B 4 ni com Appendix B Serial Port Information contains embedded terminating resistors for easy termination from National Instruments For ordering information contact National Instruments Figure B 3 shows a multidro
9. z Delete Add a New PCMCIA card PCMCIA 485 E Add Figure C 12 Selecting an Interface to Uninstall 3 Click the Delete button Note For shared IRQ AT boards all ports on the interface are removed Uninstall the Software Before uninstalling the software remove all serial port information from the Windows NT Control Panel as described in the previous section You do not need to shut down Windows NT before uninstalling the software Complete the following steps to remove the NI Serial software 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs Properties dialog box appears This dialog box lists the software available for removal 3 Select the serial software you want to remove and click the Add Remove button The uninstall program runs and removes all folders utilities and registry entries associated with the NI Serial software 4 Shutdown Windows NT power off your computer and remove your serial interfaces To reinstall the hardware and software refer to Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration National Instruments Corporation C 23 NI Serial Hardware and Software for Windows Troubleshooting and Common Questions This appendix describes how to troubleshoot problems and answers some common questions
10. 3 retrieve the current RS 232 transceiver mode you can use NISERIAL GET RS232 MODE and DeviceloControl with the following code ULONG bytecount TRANSCEIVER MODE transceiver mode DeviceIloControl comhandle NISERIAL GET RS232 MODE PVOID NULL 0 PVOID amp transceiver mode sizeof transceiver mode amp bytecount NULL Retrieving the RS 232 Transceiver State with DeviceloControl The NI Serial software uses programmatic control codes and the DeviceloControl Windows function for retrieving the current RS 232 transceiver state The function returns which mode the RS 232 transceivers are currently operating in for example if in Auto232 mode and DTE mode was automatically selected the transceiver state will be reported as DTE and whether the serial connection is valid To retrieve the current RS 232 transceiver state complete the following steps Note You can use the header file NISerial h included on your CD to integrate this code into your program easily National Instruments Corporation 7 13 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware 8 Note Tranceiver mode refers to the programmed mode Transceiver state refers to the physical state of the transceivers actual operating mode and whether valid or invalid 1 Add the following lines to your source code include lt winioctl h gt define RS232 MODE DTE 0x00 define RS232 MODE DCE 0 01 typedef UL
11. d Check the hardware resources If they are in conflict refer to the Resolving Resource Conflicts section NI Serial Hardware and Software for Windows D 14 ni com Appendix D Troubleshooting and Common Questions 2 Make sure that the National Instruments serial driver is installed as follows a Locate the serial sys file in the WinNT system32 drivers directory b Ifthe serial sys file is missing reinstall the hardware and software For instructions on how to do so refer to the installation and verification chapter for your hardware platform Right click the serial sys file and select Properties d Click the Version tab If the Company Name is Microsoft the National Instruments serial driver is not installed properly To solve this problem reinstall the NI Serial software For instructions on how to do so refer to the installation and verification chapter for your hardware platform Diagnostic Utility Does Not Show All Installed Ports If the diagnostic utility does not show all the ports you installed complete the following steps 1 Verify the hardware resources as follows a Select Start Settings Control Panel and double click the niports icon b In the Ports list select a port and click the Settings button If the serial port is missing from the Ports list reinstall the hardware and software For instructions on how to do so refer to the installation and verification chapter for your hardware pla
12. save your changes click the OK button To exit without saving the changes click the Cancel button Note RS 232 transceiver modes apply to USB 232 two or four port hardware only and RS 485 transceiver modes and RS 485 bias resistor control applies to USB 485 hardware only Port Settings Tab In the Port Settings tab you can change any of the settings by clicking the arrow button to the right of a field When you click the arrow button a list of valid values for that field appears and you can select the desired setting from the list Figure 4 2 shows the Port Settings tab NI Serial Hardware and Software for Windows 4 4 ni com Advanced Settings Chapter 4 USB Serial Hardware Installation Verification and Configuration N I USB 485 4 SN CECCO6 Communications Port 1 COM14 Prona 2 4 General Part Settings Driver Bits per second Data bits fe sr Parity rl Stop bits hn rl Flow control rl Advanced Restore Defaults Cancel Figure 4 2 Port Settings Tab To view or change the advanced settings click the Advanced button Figure 4 3 shows the Advanced Settings dialog box National Instruments Corporation Advanced Settings for COM14 BEN 71 xl v Buffers enabled v Bias Resistors Enabled COM Port Number Transceiver Mode COM14 w 4 Wire m OK Cancel Defaults Figure 4 3 Advanced Settings
13. Advanced Features In addition to supporting standard 16550 compatible UART functionality some NI serial hardware supports additional advanced features e RS 485 transceiver control e RS 485 socketed bias resistors e RS 485 programmatically controlled bias resistors e RS 232 DTE DCE transceiver control e Status LEDs National Instruments Corporation 7 1 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware To determine which features your product supports refer to Table 7 1 Table 7 1 Serial Hardware Features 25 S5 5 3 m 8 9 2 a 8 amp S e o on Ew UO lt A 24 5 D A E As is a E 5 o 82 82 32 z Ta E s Hs ns Hs h E S S Hardware IZA eO e E gt USB 232 two port and four port X X 230 4 USB 2322 one port 230 4 USB 485 two port and four port X X X X 460 8 USB 485 one port X X 460 8 PCI PXI 485 eight port X 460 8 All other PCI PXI 485 x x 460 8 PCMCIA 485 x 921 6 PCI PXI AT 232 PCMCIA 232 4 115 2 All other PCMCIA 921 6 AT 485 x x 115 2 NI Serial Hardware and Software for Windows 7 2 ni com Chapter 7 Using Your Serial Hardware You can access some of these features through DeviceIOControl function calls the port settings dialog box or both To determine which function calls your product supports refer to Table 7
14. Transceiver Mode This field shows the transceiver mode in use and applies only to PCI 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e If transfer rates are high you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive Buffer value is above your data sizes your system is less efficient Therefore set the Receive Buffer value below your data sizes NI Serial Hardware and Software for Windows 2 16 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration Restore Defaults To reset the fields to their default values at any time click the Restore Defaults button Windows NT Install the Software Before you install your serial hardware complete the following steps to in
15. installation AT serial board installation figure 6 3 6 11 6 20 determining port associated with COMx Windows Me 9x 5 11 6 14 Windows NT 5 17 6 21 getting started 1 2 installing the PnP ISA Enabler Driver 6 18 National Instruments Corporation l 5 Index PCI serial board installation figure 2 3 2 11 2 18 PCMCIA serial card installation figure 5 3 5 9 5 17 PXI serial board installation figure 3 3 3 10 3 17 running the diagnostic test AT Windows Me 9x 6 14 AT Windows NT 6 21 PCMCIA Windows Me 9x 5 11 PCMCIA Windows NT 5 18 selecting resources for the PCMCIA card 5 16 serial hardware AT Windows 2000 6 2 AT Windows Me 9x 6 10 AT Windows NT 6 19 PCI Windows 2000 2 2 PCI Windows Me 9x 2 10 PCI Windows NT 2 17 PCMCIA Windows 2000 5 2 PCMCIA Windows Me 9x 5 8 PCMCIA Windows NT 5 16 PXI Windows 2000 3 2 PXI Windows Me 9x 3 9 PXI Windows NT 3 16 USB Windows 2000 4 2 serial software Windows 2000 2 1 3 1 4 1 5 1 6 1 Windows Me 9x 2 9 3 9 5 8 6 0 Windows NT 2 17 3 16 5 15 6 18 verification AT 6 1 PCL 2 1 PCMCIA 5 1 PXI 3 1 USB 4 1 verifying hardware installation 5 9 AT Windows 2000 6 3 AT Windows Me 9x 6 11 NI Serial Hardware and Software for Windows Index AT Windows NT 6 21 PCI Windows 2000 2 3 PCI Windows Me 9x 2 11 PCI Windows NT 2 19 PCMCIA Windows 2000 5 3 PCMCIA Windows Me 9x 5 11 PCMCIA Windows NT 5 17 PXI Win
16. 7 10 Setting the RS 485 Programmically Controlled Bias Resistors With DeviceloControl 5 tre e Roe 7 10 National Instruments Corporation Vii NI Serial Hardware and Software for Windows Contents RS 232 DTE DCE Transceiver Control eese 7 11 Setting the RS 232 Transceiver Mode with DeviceloControl 7 12 Retrieving the RS 232 Transceiver State with DeviceloControl 7 13 Setting Ring Indicate and DCD with DeviceloControl 7 14 Status LEDS e yet ee eb eet a ta e 7 17 Retrieving the Serial Interface Type sese 7 18 Appendix A Connector Descriptions Appendix B Serial Port Information Appendix C Uninstalling the Hardware and Software Appendix D Troubleshooting and Common Questions Appendix E Specifications Appendix F Technical Support and Professional Services Glossary Index NI Serial Hardware and Software for Windows viii ni com About This Manual Conventions This manual contains instructions to help you install and configure the NI Serial hardware and software for Windows 2000 NT XP Me 9x This manual includes information about the following serial hardware e PCI 232 2 PCI 232 4 PCI 232 8 PCI 232 16 PCI 485 2 PCI 485 4 and PCI 485 8 boards in both isolated and nonisolated versions e PXI 8420 two four eight and 16 port PXI 8421 two four a
17. Install the SOft Warez inttr E RR EUER 6 9 Install the Hardware ee eat et ett Rv e 6 10 Verify tbe eite ettet tee terr 6 12 Configure Communication Port Settings esee 6 14 Windows INT oett iter P EP dea REUS Te EORR C NER ERE 6 18 Installing the Microsoft PnP ISA Enabler Driver eee 6 18 Install the NI Serial Software eese 6 18 Install the Serial Hardware enne enne nne 6 19 Verify the Installation ete aeree elite tee ite Chad 6 21 Configure Communication Port Settings esee 6 22 Chapter 7 Using Your Serial Hardware General Programming Requirements eese eee 7 1 Advanced Peatures sim 7 1 RS 485 Transceiver Control cette e ei e Rr Se ESI D IU dederint 7 4 Wit Mode eee eerte irte celi ste ules Gate RO rene Kt dote 7 4 Two Wire Mode Controlled with Echo eee 7 4 Two Wire Mode Controlled eene 7 4 Two Wire Mode Auto Control eese 7 5 Setting the RS 485 Transceiver Control Mode esse 7 5 Setting the RS 485 Transceiver Mode with DeviceloControl 7 6 IJE EH CURIOUS 7 8 Setting the RS 485 Programmatically Controlled Bias Resistor Mode
18. Multi Function Parent Network adapters E PCMCIA adapters E Ports COM amp LPT RJ Communications Port COM3 oy PXI 8421 5 485 2 Ports Port 1 161 PXI 8421 RS 485 2 Ports Port 2 COMI60 Printer Port LPT1 fi Sound video and game controllers System devices z Universal Serial Bus controllers Figure 3 2 Device Manager for PXI Serial Board Ports NI Serial Hardware and Software for Windows 3 4 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration Verify the hardware resources as follows a Inthe Device Manager under Multi function adapters double click a serial board b Click the Resources tab If the resources were assigned properly the Resources tab shows which resources are assigned to your serial ports c Repeat steps 5a and 5b until you have verified the resources for each board Optional To determine which physical port is associated with COMx note the Port 1 Port 2 etc entries next to the COM numbers For all serial hardware PORTI refers to the top port PORT2 refers to the next port down and so on To run the diagnostic utility select Start Programs National Instruments NI Serial Diagnostics The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can com
19. My Computer Computer amp Disk drives Display adapters 23 DVD CD ROM drives 3 Floppy disk controllers 9 Floppy disk drives 52 IDE ATA ATAPI controllers gi Keyboards TA Mice and other pointing devices 3 Monitors RU Multifunction adapters lt Q PCI 232 8 Multi Function Parent 2 N I PCI 485 4 Isolated Multi Function Parent 88 Network adapters PCMCIA adapters AF Ports COM amp LPT RJ Communications Port COM3 X i N I PCI 232 8 Communications Port 1 COM2 F N I PCI 232 8 Communications Port 2 COM3 N I PCI 232 8 Communications Port 3 COM4 F N I PCI 232 8 Communications Port 4 COMS F N I PCI 232 8 Communications Port 5 6 JJ N I PCI 232 8 Communications Port 6 COM Figure 2 2 Device Manager for PCI Serial Board Ports NI Serial Hardware and Software for Windows 2 4 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration Verify the hardware resources as follows a Inthe Device Manager under Multi function adapters double click a serial board b Click the Resources tab If the resources were assigned properly the Resources tab shows which resources are assigned to your serial ports c Repeat steps 5a and 5b until you have verified the resources for each board Optional To determine which physical port is associated with COMx note the Port 1 Port 2 etc entries next to the COM numbers For all serial hardware PORTI refe
20. Select the National Instruments port to remove from the list of ports as shown in Figure C 11 System Properties 2 xl General Device Manager Hardware Profiles Performance View devices by type View devices by connection 2 Hard disk controllers E Keyboard 2 Monitor A Mouse BI Network adapters Ports COM amp LPT RJ Communications Port COM1 J Communications Port COM2 Communications Port COM10 y N I AT 232 4 Communications Port COM E N I AT 232 4 Communications Port COMS RJ N I AT 232 4 Communications Port COMS RI N I AT 485 2 Communications Port COM5 F N I AT 485 2 Communications Port COMB 3 Printer Port LPT1 Bl System devices Properties Refresh Remove Figure C 11 Selecting an Interface to Uninstall 6 Click the Remove button 3 Note To remove ports on shared IRQ AT boards from within the Device Manager you must open the Multi function adapters class select the name of your interface and click the Remove button 7 Inthe Confirm Device Removal dialog box click the OK button to remove this interface or click Cancel to cancel your request National Instruments Corporation C 21 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software Windows NT Uninstall the Software Before uninstalling the software remove all serial port information
21. Settings Control Panel Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs dialog box appears Click the Install button When prompted insert the NI Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button to proceed The software installation wizard begins The wizard guides you through the necessary steps to install the NI Serial software You can go back and change values where NI Serial Hardware and Software for Windows 6 18 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration appropriate by clicking the Back button You can exit the setup where appropriate by clicking the Cancel button RE Note This installation backs up the Microsoft Windows NT serial driver serial sys to serial bak and then overwrites serial sys You can find serial sys in the Windows NT system32 drivers directory The software installation is complete Install the Serial Hardware This section describes how to install your AT serial board iyi Note If you are installing an AT 485 you might need to adjust the value of the bias resistors depending on your application For more information refer to Chapter 7 Using Your Serial Hardware UN Caution Electrostatic discharge can damage several components on your board To avoid such damage in handling the board touch the antistatic plastic package to a metal part of your compute
22. complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Select the Hardware tab and click the Device Manager button Double click the Multi function adapters icon 4 Fromthe Multi function adapters list right click the National Instruments interface that you want to uninstall as shown in Figure C 4 National Instruments Corporation C 7 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 8 Device Manager HE al xl Action e gt Gi ES t LR My Computer Computer amp Disk drives Display adapters 5 DVD CD ROM drives amp 25 Floppy disk controllers 9 Floppy disk drives IDE ATA ATAPI controllers Keyboards TA Mice and other pointing devices 3 Monitors x Multifunction adapters 2 a ER Multi Function Paren Bl Network adapters Disable PCMCIA adapters Ports COM amp LPT Communications Port COM3 1 e DL HAHAA AE 1 8 8 9 Scan for hardware changes Properties N I PXI 8421 RS 485 2 Ports Port 2 COM160 Printer Port LPT1 i Sound video and game controllers m System devices Universal Serial Bus controllers Figure C 4 Selecting an Interface to Uninstall Choose the Uninstall option 6 Inthe Confirm De
23. properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem After you verify the hardware and software installation connect the serial cables to your devices Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 XP Device Manager You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps 1 National Instruments Corporation Select Start Settings Control Panel and double click the System icon Click the Hardware tab and then click the Device Manager button Double click the Ports COM amp LPT icon 4 3 NI Serial Hardware and Software for Windows Chapter 4 USB Serial Hardware Installation Verification and Configuration 4 Double click the port you want to configure and refer to the following instructions e view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab change the COM port number the RS 485 transceiver mode or RS 232 transceiver mode or enable disable the RS 485 bias resistors in the Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab 5
24. refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions The serial hardware installation is complete National Instruments Corporation 3 8 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration Verify the Installation To verify the hardware and software installation complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Hardware tab and then click the Device Manager button Double click the Ports COM amp LPT icon to display all of the ports 4 Double click the Multi function adapters icon The PXI serial boards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon Figure 3 2 shows the Device Manager tab for serial hardware that is installed properly 2 Em View 1 My Computer 9 88 Computer H E Disk drives Display adapters 5 43 DYD CD ROM drives H 6 Floppy disk controllers 91 9 Floppy disk drives 2 IDE ATA ATAPI controllers gi Keyboards 3 Mice and other pointing devices evice Manager li c 4 Monitors I Multifunction adapters N I PXI 8421 RS 485 2 Ports
25. restart Windows 2000 XP National Instruments Corporation 6 1 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration 9 Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish When you complete the wizard continue to the Verify the Installation section If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions Install the Hardware Note If you are installing AT 485 you might need to adjust the value of the bias resistors depending on your application For more information refer to Chapter 7 Using Your Serial Hardware UN Caution Before you remove your board from the package touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on your serial board To install your AT serial board complete the following steps 1 Turn off your computer Keep the computer plugged in so that it remains grounded while you install the AT serial board 2 Remove the top or side cover of the computer Find an unused AT expansion slot in your computer 4 Remove the corresponding expansion slot cover on the back panel of the computer Touch a metal part on your ch
26. wo N I PCI 232 8 Communications Port 6 COM10 R N I PCI 232 8 Communications Port 7 COM6 N I PCI 232 8 Communications Port 8 5 K N I PCI 485 4 Isolated Communications Port 1 COM159 E N I PCI 485 4 Isolated Communications Port 2 COM158 N I PCI 485 4 Isolated Communications Port 3 COM157 F N I PCI 485 4 Isolated Communications Port 4 COM156 Printer Port LPT1 Sound video and game controllers a System devices 3 Mice and other pointing devices Scan For hardware changes Figure C 1 Selecting an Interface to Uninstall NI Serial Hardware and Software for Windows C 2 ni com Windows Me 9x Appendix C Uninstalling the Hardware and Software 5 Choose the Uninstall option 6 Inthe Confirm Device Removal dialog box click the OK button to remove the hardware information or click the Cancel button to cancel your request Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software complete the following steps 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall 3 Select NI Serial and click the Change Remove button The uninstallation program removes all folders utilities and regi
27. 2 For more information about using DeviceIOControl refer to the appropriate section in this chapter Table 7 2 Function Call Product Support EU OE 3 AE E S in 2 8 a a uv 5 e e oc Mn c Y 5 Programmatic e e e Feature Control Code gt gt gt lt RS 232 Transceiver Control Set Transceiver Mode SET_RS232_MODE X Get Transceiver Mode GET_RS232_MODE X X Get Transceiver State GET_RS232_STATE X X Set DCD SET_DCD X Clear DCD CLR_DCD X Get DCD State DCE GET_DCD X X Set RI SET_RI X Clear RI CLR_RI X Get RI State DCE GET_RI X X RS 485 Bias Resistors Set Bias Mode SET_RS485_BIAS X Get Bias Mode GET_RS485_BIAS X RS 485 Transceiver Control Set Transceiver Mode SET_RS485_MODE X X Get Transceiver Mode GET_RS485_MODE X National Instruments Corporation 7 3 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware RS 485 Transceiver Control The RS 485 hardware supports four modes of hardware transceiver control You can use hardware transceiver control to enable and disable your transmitters and receivers so that they function on different bus topologies Table 7 3 lists the status of the transmitters and receivers under each transceiver control mode Table 7 3 RS 485 Transceiver Control Modes Mode Transmitter Receiver Four wire mode Always enabled Always enabled Two wir
28. 25Q A Rx 100 Q Termination Resistor 250 i B NW AN on USB 485 two and four port Programmatic Control Figure 7 2 USB 485 Transmission Line Using Bias Resistors The values of the programmatically controlled bias resistors have been calculated such that there is a voltage of at least 200 mV between the differential pair Rather than using the programmatically controlled bias resistors you can load custom values of resistors into the sockets in front of each connector or use external bias resistors If these resistors are installed make sure the programmatically controlled bias resistors are disabled Note The series 25 Q resistors in Figure 7 2 are for short circuit protection and do not impact serial communication National Instruments Corporation 7 9 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware Setting the RS 485 Programmatically Controlled Bias Resistor Mode The USB 485 hardware can programmatically control the onboard nonsocketed bias resistors By default these resistors are enabled during normal device operation and disabled during USB suspend There are two ways to control these resistors e Use the Advanced Settings tab in the control panel If the Enable Dynamic Bias Resistors box is checked the resistors are enabled automatically whenever a serial port is open during normal operation If the box is not checked the resistors are disabled e You
29. 5 13 PXI Windows 2000 3 6 PXI Windows Me 9x 3 14 restore defaults button 2 9 2 17 3 9 3 16 4 6 5 8 5 15 6 9 USB Windows 2000 4 4 ports list in Device Manager figure D 10 D 12 professional services F 1 programming examples F 1 PXI serial board installation figure 3 3 3 10 3 17 PXI serial board names and descriptions table 1 6 R related documentation x removing information about serial boards from Device Manager Windows 2000 D 21 resolving resource conflicts D 14 NI Serial Hardware and Software for Windows Index resolving resource conflicts with legacy boards Windows 2000 D 4 Windows Me 9x D 9 resource configuration dialog box for the PCMCIA 485 figure 5 22 resource configuration dialog box for the PCMCIA 485 2 figure 5 23 resource settings 5 22 6 24 AT boards non shared IRQ 6 26 AT boards shared IRQ 6 25 PCMCIA 232 PCMCIA 485 PCMCIA 2324 5 22 PCMCIA 232 2 PCMCIA 485 2 5 23 restoring defaults 2 9 2 17 3 9 3 16 4 6 5 8 5 15 6 9 retrieving RS 232 transceiver control mode retrieving with DeviceloControl 7 13 RS 232 DTE DCE transceiver control 7 11 RS 232 DCE vs DTE B 6 RS 232 DTE vs DCE B 6 RS 232 standard B 1 features table B 1 RS 232 transceiver mode retrieving with DeviceloControl 7 13 setting with DeviceloControl 7 12 RS 422 standard B 2 features table B 1 RS 485 programmatic bias resistor control 7 10 RS 485 control setting transceiver
30. 9 Ports COM amp LPT I Communications Port COM1 E N I PCMCIA 232 2 Communications Port 5 N I PCMCIA 232 2 Communications COME Printer Port LPT2 A Sound video and game controllers YAMAHA OPL3 SAx GamePort he Figure 5 6 Device Manager Ports List for PCMCIA Serial Card Correctly Installed NI Serial Hardware and Software for Windows 5 10 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Verify the Hardware Resources For every port of the newly installed serial interface double click the name of the serial port in the Device Manager Then click the Resources tab If the resources were assigned correctly the Resources page shows which resources are assigned to your serial ports If Windows Me 9x did not assign any resources to the port the Resources page shows only a Set Configuration Manually button Click the Set Configuration Manually button and try to assign conflict free resources to your serial hardware For instructions refer to the Selecting Conflict Free Resources section of Appendix D Troubleshooting and Common Questions You might have to free an interrupt request level so that one can be assigned to your serial hardware For instructions refer to the Freeing an Interrupt Request Level section of Appendix D Troubleshooting and Common Questions When you have finished verifying
31. A MANNER NOT EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS THE USER OR APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION INCLUDING WITHOUT LIMITATION THE APPROPRIATE DESIGN PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION Compliance FCC Canada Radio Frequency Interference Compliance Determining FCC Class The Federal Communications Commission FCC has rules to protect wireless communications from interference The FCC places digital electronics into two classes These classes are known as Class A for use in industrial commercial locations only or Class B for use in residential or commercial locations All NI products are FCC Class A products Depending on where it is operated this Class A product could be subject to restrictions in the FCC rules In Canada the Department of Communications DOC of Industry Canada regulates wireless interference in much the same way Digital electronics emit weak signals during normal operation that can affect radio television or other wireless products All Class A products display a simple warning statement of one paragraph in length regarding interference and undesired operation The FCC rules have restrictions regarding the locations where FCC Class A products can be operated Consult the FCC Web site at www fcc gov for
32. B 4 full duplex network using terminating resistors figure B 5 G general port settings AT 6 23 dialog box figure 6 23 transceiver mode 6 23 COM port number 2 21 3 20 5 20 6 23 FIFO enabled 2 21 3 20 5 21 6 23 PCI 2 21 dialog box figure 2 21 transceiver mode 2 21 PCMCIA 5 20 dialog box figure 5 20 transceiver mode 5 20 PXI 3 20 dialog box figure 3 20 transceiver mode 3 20 resources 2 22 3 21 5 21 6 24 general programming requirements 7 1 getting started 1 2 glossary G 1 H half duplex B 4 half duplex system figure B 4 hardware installation AT Windows 2000 6 2 AT Windows Me 9x 6 10 AT Windows NT 6 19 getting started 1 2 PCI Windows 2000 2 2 PCI Windows Me 9x 2 10 PCI Windows NT 2 17 PCMCIA Windows 2000 5 2 PCMCIA Windows Me 9x 5 8 ni com PCMCIA Windows NT 5 16 PXI Windows 2000 3 2 PXI Windows Me 9x 3 9 PXI Windows NT 3 16 USB Windows 2000 4 2 verification AT Windows 2000 6 3 AT Windows Me 9x 6 11 AT Windows NT 6 21 PCI Windows 2000 2 3 PCI Windows Me 9x 2 11 PCI Windows NT 2 19 PCMCIA Windows 2000 5 3 PCMCIA Windows Me 9x 5 9 PCMCIA Windows NT 5 17 PXI Windows 2000 3 4 PXI Windows Me 9x 3 11 PXI Windows NT 3 18 USB Windows 2000 4 2 hardware specifications PCI E 1 PCMCIA E 9 PXI E 4 USB E 7 help professional services F 1 technical support F 1 high speed USB networks using USB serial hardware with D 24
33. Corporation Click the Scan for Hardware Changes icon at the top of the Device Manager window After Windows automatically detects your hardware run the diagnostics utility to confirm proper serial port installation If all your serial ports still are not visible disconnect and reconnect the USB serial hardware to a different USB port and try step 2 again D 17 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Troubleshooting Diagnostic Messages This section lists the possible error messages and test results that the diagnostic utility returns along with the solutions No Serial Ports Found or Diagnostic Utility Does Not Show All Installed Ports Ifthe No Serial USB ports detected error message appears or the diagnostic utility does not show all the ports you installed complete all steps in the Forcing Windows to Detect Your Hardware section System Files Can Not Be Found If the One or more dat files are missingorThe file x is missing error messages appear reinstall the NI Serial USB software to replace the missing file Serial Port Could Not Be Opened Ifthe port could not be opened error message appears verify that no other applications have the port open and rerun the diagnostic utilities If this message continues to appear reboot your system and try the diagnostic program again If this does not resolve the problem and no other applications are using this port c
34. Corporation The PXI serial boards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon Figure 3 6 shows the Device Manager tab for serial hardware that is installed properly 3 11 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration System Properties L2 x General Device Manager Hardware Profiles Performance View devices by type C View devices by connection x Multifunction adapters gt FX1 8422 Isolated RS 232 4 Ports Multi function Parent SY Network adapters 9 Other devices PCMCIA socket Ports COM amp LPT Communications Port COM1 F1 8422 Isolated R5 232 4 Ports 5 E F1 8422 Isolated R5 232 4 Ports COME aF PXI 8422 Isolated RS 232 4 Ports F1 8422 Isolated R5 232 4 Ports 8 928 Sound video and game controllers IB System devices Properties Refresh Remove Print TF Figure 3 6 Device Manager for PXI Serial Board Ports 5 Verify the hardware resources as follows a Inthe Device Manager tab under Multi function adapters double click a serial board b Click the Resources tab If the resource
35. Instruments port name from the list of ports that corresponds to a serial port for example COM 5 COM 6 COM 7 or COM 8 Figure D 3 shows the Ports list in the Device Manager with a port selected This example shows an AT interface Note remove ports shared IRQ cards you must open the Multifunction adapter class select the name of the interface and click the Remove button National Instruments Corporation D 11 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions System Properties L2 x General Device Manager Hardware Profiles Performance View devices by type View devices by connection 52 Hard disk controllers F Keyboard Monitor A Mouse B9 Network adapters 9 Ports COM amp LPT Communications Port COM1 Communications Port COM2 J N I AT 232 4 Communications Port COM10 N I AT 232 4 Communications Port COM N I AT 232 4 Communications Port 8 N I AT 232 4 Communications Port 9 N I AT 485 2 Communications Port 5 N I AT 485 2 Communications COMB Printer Port LPT1 System devices m Properties Refresh Remove Print A 9 9 E Figure D 3 Ports List in Device Manager 7 Click the Remove button and click OK to confirm the removal of the serial hardware information Repeat steps 6 and 7 until
36. NT XP Me 9x installed on your computer for PCI PXI PCMCIA AT kits or Windows 2000 XP installed on your computer for USB kits One of the following hardware kits PCI Kits PCI 222 two four eight or 16 port 485 two four or eight port 232 isolated two or four port PCI 485 isolated two or four port PXI Kits 8420 two four eight or 16 port PXI 8421 two four or eight port 8422 two or four port 8423 two or four port USB Kits USB 232 one two or four port USB 485 one two or four port PCMCIA Kits PCMCIA 222 one two or four port PCMCIA 485 one or two port AT Kits AT 232 two or four port AT 485 two or four port 232 two or four port isolated AT 485 two or four port isolated One of the following CDs NI Serial Software for Windows 2000 NT XP Me 9x which is included in your kit NI Serial Software USB for Windows 2000 XP which is included in your kit NI Serial Hardware and Software for Windows 1 2 ni com Chapter 1 Introduction Optional Equipment For more information about ordering the following optional equipment contact National Instruments e DB 9 RS 485 termination connector PCI 485 USB 485 PCMCIA 485 PXI 8421 PXI 8423 and AT 485 only e 10 position modular jack to DB 9 cable PCI PXI and AT four port boards only e O position modul
37. Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab Note Transceiver modes apply to RS 485 interfaces only For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware 5 save your changes click the OK button To exit without saving the changes click the Cancel button Port Settings Tab In the Port Settings tab you can change any of the settings by clicking the arrow button to the right of a field When you click the arrow button a list of valid values for that field appears and you can select the desired setting from the list Figure 3 3 shows the Port Settings tab NI Serial Hardware and Software for Windows 3 6 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration N I PXI 8421 RS 485 2 Ports Port 1 COM161 Properties 2 x Driver Resouces Figure 3 3 Port Settings Tab Advanced Settings To view or change the advanced settings click the Advanced button Figure 3 4 shows the Advanced Settings dialog box National Instruments Corporation 3 7 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration Advanced Settings for COM159 iS 21 xl Y Use FIFO buffers requires 16550 compatible UART Select lower settings to correct connection problems Select hig
38. SERIAL DCD ON true define SERIAL DCD OFF false define NISERIAL SET RI CTL CODE FILE DEVICE SERIAL PORT 4062 METHOD BUFFERED FILE ANY ACCESS define NISERIAL CLR RI CTL CODE FILE DEVICE SERIAL PORT 4061 METHOD BUFFERED FILE ANY ACCESS define NISERIAL GET RI CTL CODE FILE DEVICE SERIAL PORT 4060 METHOD BUFFERED FILE ANY ACCESS define NISERIAL SET DCD CTL CODE FILE DEVICE SERIAL PORT 4072 METHOD BUFFERED FILE ANY ACCESS define NISERIAL CLR DCD CTL CODE FILE DEVICE SERIAL PORT 4071 METHOD BUFFERED FILE ANY ACCESS define NISERIAL GET DCD CTL CODE FILE DEVICE SERIAL PORT 4070 METHOD BUFFERED FILE ANY ACCESS To set the RS 232 signal RI when the transceiver is in DCE mode use the following code ULONG bytecount DeviceloControl comhandle NISERIAL SET RI PVOID NULL 0 PVOID NULL 0 amp bytecount NULL To clear the RS 232 signal RI when the transceiver is in DCE mode use the following code ULONG bytecount DeviceloControl 7 15 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware comhandle NISERIAL CLR RI PVOID NULL 0 PVOID NULL 0 amp bytecount NULL 4 retrieve the current state of the RS 232 signal RI when the transceiver is in DCE mode use the following code SERIAL RI OUT serial ri out ULONG bytecount DeviceloControli comhandle NISERIAL GET RI PV
39. Settings tab you can change any of the settings by clicking the arrow button to the right of a field When you click the arrow button a list of valid values for that field appears and you can select the desired setting from the list Figure 5 3 shows the Port Settings tab N I PCMCIA 232 4 Communications Port 1 COM14 Propertiesisrs Id General Port Settings Driver Resources Data bits 8 7 Parity None Stop bits hh s Flow control None Bits per second Advanced Restore Defauts Cancel Figure 5 3 Port Settings Tab Advanced Settings To view or change the advanced settings click the Advanced button Figure 5 4 shows the Advanced Settings dialog box NI Serial Hardware and Software for Windows 5 6 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Advanced Settings for 159 E 1 Use FIFO buffers requires 16550 compatible UART Select lower settings to correct connection problems ancl Select higher settings for faster performance Defaults Receive Buffer Low 8 J High 60 60 1 L Transmit Buffer Low 8 High 56 56 L COM Port Number comis9 Transceiver Mode 4 wire 4 Wire 2 Wire Controlled With Echo 2 Wire Controlled 2 Wire T Ridy Auto Figure 5 4 Advanced Settings Dialog Box The followin
40. To find the information you are looking for see the section of this appendix for your operating system PCUPXUPCMGIAJ AT n pu ODER PR um EIS D 2 Windows 2000 2 e e Idee ede bete D 2 Forcing Windows to Detect Your Hardware D 2 Troubleshooting Diagnostic Messages D 3 Resolving Resource Conflicts with Legacy Boards eee eremi D 4 Windows D 4 Freeing an Interrupt Request Level D 4 Selecting Conflict Free Resources D 5 Troubleshooting Diagnostic Messages D 7 Resolving Resource Conflicts with Legacy Boards ie sci ees sarc Gh D 9 Forcing Windows to Detect Your Hardware D 9 Windows N Praeter ta a tente ee en D 12 Missing Serial Port in the niports List D 12 Resolving Resource Conflicts D 14 Troubleshooting Diagnostic Messages D 14 E mee ideis 16 Windows 2000 XP ir D 16 Resolving Power Conflicts sss D 16 Forcing Windows to Detect Your Hardware D 17 Troubleshooting Diagnostic Messages D 18 Common Questiohs us ee repe eee reci idet ee veste des D 19 National Instruments Corporation D 1 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions PCI PXI PCMCIA AT Windows 2000 Forcing Windows to Detect Your Hardwar
41. Windows 2000 C 3 C 8 C 14 C 20 Windows Me 9x C 5 C 10 C 17 22 Windows NT C 6 C 12 C 18 C 23 setting RS 232 transceiver control mode setting with DeviceloControl 7 12 setting RS 485 transceiver control mode 7 5 setting with DeviceloControl 7 6 software characteristics AT E 12 PCI E 4 E 8 NI Serial Hardware and Software for Windows Index PCMCIA E 10 PXI E 7 software drivers F 1 software installation getting started 1 2 Windows 2000 2 1 3 1 4 1 5 1 6 1 Windows Me 9x 2 9 3 9 5 8 6 9 Windows NT 2 17 3 16 5 15 6 18 specifications E 1 16 port boards PCI E 3 PXI E 6 AT E 10 eight port boards PCI E 3 PXI E 5 environmental characteristics AT E 12 PCI E 4 E 8 PXI E 6 four port boards AT E 11 PCI E 2 PXI E 5 USB E 7 isolated four port boards AT E 12 PCI E 2 isolated two port boards AT E 10 PCI E 1 PCI E 1 E 7 PCMCIA E 9 PXI E 4 software characteristics AT E 12 PCI E 4 E 8 PCMCIA E 10 PXI E 7 NI Serial Hardware and Software for Windows I 10 two port boards AT E 10 PCI E 1 PXI E 4 USB E 7 standard DOS based addresses table D 20 status LEDs USB Serial hardware 7 17 straight through cabling in a DTE to DCE interface figure B 6 support technical F 1 system integration services F 1 T technical support F 1 telephone technical support F 2 termination full duplex network using terminating resistors figure B 5 multidrop network using ter
42. Windows G 4 ni com UART VDC VXI Winl6 Win32 Glossary Universal Asynchronous Receiver Transmitter volts volts direct current VME eXtensions for Instrumentation describes a 16 bit Windows application describes a 32 bit Windows application National Instruments Corporation G 5 NI Serial Hardware and Software for Windows Index Numerics 100 pin connector A 8 pin descriptions table A 9 pin locations figure A 8 10 position modular jack A 3 pin descriptions table A 3 pin locations figure A 3 16 port boards specifications PCI E 3 PXI E 6 68 pin connector A 6 pin descriptions table A 7 pin locations figure A 6 9 data bit framing D 25 A advanced features 7 1 advanced port settings AT Windows Me 9x 6 16 dialog box figure AT Windows Me 9x 6 17 PCI Windows Me 9x 2 16 PCMCIA Windows Me 9x 5 14 PXI Windows Me 9x 3 15 PCI Windows Me 9x 2 16 PCMCIA Windows Me 9x 5 14 PXI Windows Me 9x 3 15 transceiver mode AT Windows Me 9x 6 17 PCI Windows Me 9x 2 16 PCMCIA Windows Me 9x 5 14 PXI Windows Me 9x 3 15 advanced settings AT Windows 2000 6 7 bias resistors USB Windows 2000 4 6 National Instruments Corporation dialog box figure AT Windows 2000 6 8 PCI Windows 2000 2 8 PCMCIA Windows 2000 5 7 PXI Windows 2000 3 8 USB Windows 2000 4 5 PCI Windows 2000 2 7 PCMCIA Windows 2000 5 6 PXI Windows 2000 3 7 transceiver mode AT Win
43. Your Serial Hardware 5 save your changes click the OK button To exit without saving the changes click the Cancel button Port Settings Tab In the Port Settings tab you can change any of the settings by clicking the arrow button to the right of a field When you click the arrow button a list of valid values for that field appears and you can select the desired setting from the list Figure 6 3 shows the Port Settings tab NI Serial Hardware and Software for Windows 6 6 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration Data bits B H Parity Nowe e Flow control Noe i e Advanced Restore Defaults Cancel Figure 6 3 Port Settings Tab Advanced Settings To view or change the advanced settings click the Advanced button Figure 6 4 shows the Advanced Settings dialog box National Instruments Corporation 6 7 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration Advanced Settings for COM159 E 324 xl 1 v Use FIFO buffers requires 16550 compatible UART OK Select lower settings to correct connection problems dd Cancel Select higher settings for faster performance Defaults Receive Buffer Low 8 J High 60 60 Transmit Buffer Low 8 High 56 56 COM Port Number comis9 Transceiver Mode 4 w
44. a DTE to DTE interface figure B 7 number of interrupts required for a serial interface D 21 ni com 0 online technical support F 1 optional equipment 1 3 overview of serial hardware AT 1 8 PCI 1 3 PCMCIA 1 7 PXI 1 4 USB 1 6 overview of serial software 1 9 P PCI serial board installation figure 2 3 2 11 2 18 PCMCIA card installation figure 5 3 5 9 5 17 phone technical support F 2 pin descriptions 100 pin connector pin descriptions figure A 8 100 pin connector pin descriptions table A 9 68 pin connector pin descriptions figure A 6 68 pin connector pin descriptions table A 7 DB 25 connector A 4 connector pin descriptions table A 4 connector pin locations figure A 4 DB 9 100 pin description table A 9 68 pin description table A 7 connector A 2 connector pin descriptions table A 2 connector pin locations figure A 2 PnP port configuration dialog box for the AT 232 4 figure 6 25 National Instruments Corporation l 7 Index port settings tab AT Windows 2000 6 6 AT Windows Me 9x 6 16 options advanced port settings AT Windows Me 9x 6 16 PCI Windows Me 9x 2 16 PCMCIA Windows Me 9x 5 14 PXI Windows Me 9x 3 15 advanced settings AT Windows 2000 6 7 PCI Windows 2000 2 7 PCMCIA Windows 2000 5 6 PXI Windows 2000 3 7 USB Windows 2000 4 5 PCI Windows 2000 2 6 PCI Windows Me 9x 2 15 PCMCIA Windows 2000 5 6 PCMCIA Windows Me 9x
45. and click the OK button When you finish continue to the Verify the Installation section If no New Hardware Found dialog box appears refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions UN Caution Before you remove your board from the package touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on your serial board National Instruments Corporation 3 9 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration To install your PXI serial board complete the following steps 1 Qus Turn off your PXI or CompactPCI chassis Keep the chassis plugged in so that it remains grounded while you install the PXI serial board Find an unused PXI or CompactPCI 5 V peripheral slot Remove the corresponding filler panel Touch a metal part on your chassis to discharge any static electricity Insert the PXI serial board into the 5 V slot Use the injector ejector handle to fully inject the device into place Figure 3 5 shows how to install the PXI serial board into a PXI or CompactPCI chassis Injector Ejector Handle In Down Position Chassis PXI Serial Board 4 Injector Ejector Rail Figure 3 5 Installing the PXI Serial Board Screw the PXI serial board front panel
46. base addresses assigned to your legacy boards and refer to the Resolving Resource Conflicts with Legacy Boards section Interrupt Test Failed Ifthe Interrupt test failed error message appears you might have an IRQ conflict with legacy boards in your system To solve this problem change the IRQ level assigned to your legacy boards and refer to the next section Resolving Resource Conflicts with Legacy Boards National Instruments Corporation D 3 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Windows Me 9x Resolving Resource Conflicts with Legacy Boards Resource conflicts typically occur if your system contains legacy boards that use resources that are not reserved properly If a resource conflict exists write down the resource that caused the conflict and refer to the Microsoft Windows 2000 user guide for instructions on how to use the Device Manager to reserve I O and IRQ resources for legacy boards Freeing an Interrupt Request Level To free an interrupt request level for your serial port you must disable the device that is using the interrupt request level To view the system wide allocation of interrupt request resources and remove a device complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Device Manager tab 3 Double click the Computer icon and click the View Resources tab 4 Click the Interrupt Reque
47. configuration utility which is fully integrated into the Windows 2000 XP Me 9x Device Manager and Windows NT Control Panel Its Port Settings view indicates the maximum baud rate your hardware supports How do I remove information about serial boards from the Device Manager or NI Ports Utility Refer to the uninstallation section for your hardware platform in Appendix C Uninstalling the Hardware and Software How many interrupts are required for my serial interface If you have a shared IRQ board or an isolated board you need one interrupt per board If you have an older non shared IRQ board you need as many interrupts as there are ports on the board The USB serial hardware does not require interrupts How do I change the resources assigned to the serial interface Windows Me 9x Only PCI and PXI Boards The PCI and PXI serial boards are configured as devices belonging to the multi function adapters class The multi function parent device is listed National Instruments Corporation D 21 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon To change the resources of serial ports complete the following steps 1 Inthe Device Manager tab under Multi function adapters double click a serial interface 2 Click the Resources tab to change the resources Your
48. difference between USB 2 0 and USB 1 1 The USB 2 0 specification replaces the USB 1 1 specification and adds a high speed mode of operation 480 Mbit s to the previously existing full speed 12 Mbit s and low speed 1 5 Mbit s modes of operation Because USB 2 0 expands on the features of USB 1 1 while preserving backward device compatibility you can use most full speed and low speed devices with either USB 2 0 high speed networks or USB 1 1 full speed networks Can I use the USB serial hardware in high speed 2 0 USB networks Yes Because the USB 232 485 devices are USB 2 0 full speed compliant you can use them in either high speed USB 2 0 hubs or full speed USB 1 1 hubs networks What happens to data sent to a closed serial port Because serial communication ports are active only when the port is open for example by using CreateFile data may be received and made available only when the port is open Assume that any data received by a closed com port may be lost or corrupted Why do loopback tests of large data transfers sometimes have problems In a typical loopback test an external wrap plug is used to loop back transmit signals to receive signals In this configuration data transmitted is read back on the same serial port to test port communication Loopback programs often perform this data transfer using a single write followed by a single read and thus rely on driver software and serial hardware buffering to ho
49. disable the FIFOs on the serial hardware in the Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab 5 Note If you use two wire Auto mode FIFOs must be enabled Transceiver modes apply to RS 485 interfaces only For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware 5 National Instruments Corporation To save your changes click the OK button To exit without saving the changes click the Cancel button 6 15 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration Port Settings Tab On the Port Settings tab you can change any of the settings by clicking the arrow button to the right of the setting When you click the arrow button a list of valid values for that setting appears Select the desired setting from the list Figure 6 7 shows the Port Settings tab N I AT 485 2 Communications Port COM6 Properties K Figure 6 7 Port Settings Tab Advanced Port Settings You can view or change the advanced port settings by clicking the Advanced button on the Port Settings tab Figure 6 8 shows the Advanced Port Settings dialog box NI Serial Hardware and Software for Windows 6 16 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration Advanced Port Settings x Transceiver Mode wir
50. installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated with the Windows Me 9x Device Manager You can use it to examine or modify the configuration of the serial port Complete the following steps to configure the serial port Repeat the configuration procedure for each serial port in your system 1 4 Select Start Settings Control Panel and double click the System icon The System Properties window appears Select the Device Manager tab and click the View devices by type button at the top of the page Double click the Ports COM amp LPT icon Double click the name of the port you want to configure You can now view or change information about your serial port in the following ways Click the Resources tab to view information about the hardware resources assigned to the serial port Click the Port Settings tab to view information about the software configuration for the serial port Refer to the next section Port Settings Tab for more information On the Port Settings tab click the Advanced button to change the RS 485 transceiver mode and to enable or disable the FIFOs on the serial hardware Refer to the next section Port Settings Tab for more information 3 Note If you use two wire Auto mode FIFOs must be enabled Transceiver modes apply to RS 485 in
51. port National Instruments Corporation 1 3 NI Serial Hardware and Software for Windows Chapter 1 Introduction version uses a breakout box to convert the 100 pin connector on the board to 16 DB 9 connectors Throughout this manual PCI serial boards refers to all versions of the PCI serial boards The isolated PCI 232 and PCI 485 boards are designed for applications in harsh environments Isolated ports provide reliable communication in situations involving ground loops from different ground levels or high common mode voltage induced on the lines in noisy environments Nonisolated ports may not provide reliable communication in those situations The isolation between each communication port and the host PC ensures the safe operation of the PC and the devices connected to other ports on the same board in case of accidental high voltages on communication lines The PCI 485 boards support four hardware transceiver control modes for reliable communication with two and four wire devices For more information about transceiver control modes refer to Chapter 7 Using Your Serial Hardware All serial hardware uses standard 16550 compatible UARTs Universal Asynchronous Receiver Transmitters for complete compatibility with standard PC COM ports The serial hardware contains FIFOs First In First Out buffers to reduce susceptibility to interrupt latency for faster transmission rates Full Plug and Play compatibility allows switchless configur
52. problem complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Device Manager tab and then click the View devices by type button 3 Double click the Other Devices icon Windows Me 9x lists the boards it does not recognize under Other Devices 4 Double click the Multi function adapters icon where Windows Me 9x lists the parent devices of the PCI or PXI ports National Instruments Corporation D 9 NI Serial Hardware and Software for Windows Appendix D NI Serial Hardware and Software for Windows Troubleshooting and Common Questions 5 Select the interface that Windows 9 did not detect as shown in Figure D 2 This example shows a PCI interface System Properties 21 x General Device Manager Hardware Profiles Performance View devices by type C View devices by connection 9 8 Keyboard m Modem E Monitor HA Mouse gt Multi function adapters gt N I PCI 232 4 Multi function Parent BY Network adapters 2 Dther devices PCMCIA socket oy Ports COM amp LPT 9 Communications Port COM1 N I PCI 232 4 Communications Port COM10 N I PCI 232 4 Communications Port COM N I PCI 232 4 Communications Port COM8 N I PCI 232 4 Communications Port Printer Pot PT2 AMA cnd Fe ees Properties Refresh Remove Print 9
53. refer to Chapter 7 Using Your Serial Hardware UN Caution Before you remove your board from the package touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on your serial board To install your PCI serial board complete the following steps 1 Turn off your computer Keep the computer plugged in so that it remains grounded while you install the PCI serial board Remove the top or side cover of the computer Find an unused PCI expansion slot in your computer Remove the corresponding expansion slot cover on the back panel of the computer Touch a metal part on your chassis to discharge any static electricity Insert the PCI serial board into the slot with the serial connectors toward the opening on the back panel Make sure that you insert the board all the way into the slot The board might seem to click firmly into place even though it is only part of the way in Figure 2 1 shows how to install the PCI serial board into an expansion slot NI Serial Hardware and Software for Windows 2 2 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration 1 PC 2 PCI Serial Board 3 PCI Slot Figure 2 1 PCI Serial Board Installation 7 Screw the PCI serial board mounting bracket to the back panel mounting rail of the computer 8 Replace the cover 9 Turn on your computer and start Windo
54. terminates in a standard DB 9 D Sub connector Throughout this manual references to PCMCIA serial interfaces generally refer to all versions of the interfaces The PCMCIA 485 interfaces support four hardware transceiver control modes for reliable communication with two wire and four wire devices Refer to Chapter 7 Using Your Serial Hardware for more information about transceiver control modes All of the serial hardware uses standard 16550 compatible UARTs Universal Asynchronous Receiver Transmitters for 100 percent compatibility with standard PC COM ports The serial hardware contains FIFOs First In First Out buffers for reduced susceptibility to interrupt latency and faster transmission rates Full Plug and Play compatibility gives you the convenience of switchless configuration and installation Refer to Appendix E Specifications for more information about the serial hardware specifications and operating conditions National Instruments Corporation 1 7 NI Serial Hardware and Software for Windows Chapter 1 AT Kits Introduction The serial hardware gives you a variety of solutions for serial communications The AT 232 boards work with the RS 232 protocols and the AT 485 boards work with the RS 422 and RS 485 protocols You can use the AT 232 hardware for serial communication up to distances of 50 ft You can connect the AT 485 hardware with up to 31 devices using serial cable lengths up to 4 000 ft The AT boards are ava
55. the hardware information To do so complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Select the Device Manager tab and click the View devices by type button 3 Double click the Multi function adapters icon 4 Fromthe Multi function adapters list select the National National Instruments Corporation Instruments interface that you want to uninstall as shown in Figure C 5 C 9 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software System Properties 21x General Device Manager Hardware Profiles Performance View devices by type View devices by connection amp Hard disk controllers 2 Keyboard Modem Monitor A Mouse Multi function adapters DF R8 89 8 32 4 Ports Multi function Parent B3 Network ee 4 Other devices PCMCIA socket Ports COM amp LPT Communications Port COM1 F1 8422 Isolated 232 4 Ports 5 F F1 8422 Isolated 232 4 Ports COME K 1 8422 Isolated 232 4 Ports COM F PXI 8422 Isolated 232 4 Ports 8 RS Properties Refresh Remove Print 1 Cancel Figure C 5 Selecting an Interface to Uninstall Click the Remove button 6 Inthe Confirm Device Removal dialog box click the OK button to re
56. the hardware resources proceed to the next section Determine Which Physical Port Is Associated with COMx Determine Which Physical Port Is Associated with COMx For every port of the newly installed serial interface double click the name of the serial port in the Device Manager Then click the Port Settings tab The top of this page displays the serial number of the serial hardware and the physical port number starting at 1 When you have finished verifying the driver installation and physical port proceed to the next section Run the Diagnostic Test Run the Diagnostic Test To verify and test the installation run the diagnostic program that came with your NI Serial software The diagnostic program verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly To run the test select the diagnostics item under Start Programs National Instruments Serial If the diagnostic test completes with no failures your serial hardware and software are installed properly If it fails refer to Appendix D Troubleshooting and Common Questions for troubleshooting instructions National Instruments Corporation 5 11 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration After you verify the hardware and software
57. to the front panel mounting rail of the PXI or CompactPCI chassis Turn on your PXI or CompactPCI chassis and start Windows Me 9x NI Serial Hardware and Software for Windows 3 10 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration Windows Me 9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes Make sure that Windows Default Driver is selected and click the OK button If no New Hardware Found dialog box appears refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions The serial hardware installation is complete Verify the Installation Before you verify the installation keep in mind that the serial ports built into your computer are typically named from COMI to COM4 Windows Me 9x typically issues port names to the ports on NI Serial hardware starting with COM5 COM6 and so on If not enough resources are available to assign to all the NI serial ports the port with the higher name is not configured To verify the hardware and software installation complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Device Manager tab and then click the View devices by type button 3 Double click the Ports COM amp LPT icon to display all of the ports 4 Double click the Multi function adapters icon National Instruments
58. you have acquired raw data you can convert it into meaningful results using the powerful data analysis routines in LabVIEW LabVIEW also comes with hundreds of instrument drivers which dramatically reduce software development time because you do not have to spend time programming the low level control of each instrument Measurement Studio bundles LabWindows CVI for C programmers ComponentWorks for Microsoft Visual C programmers and ComponentWorks for Microsoft Visual C programmers Measurement Studio is designed for building measurement and automation applications with the programming environment of your choice e LabWindows CVlIis an interactive ANSI C programming environment designed for building virtual instrument applications LabWindows CVI delivers a drag and drop editor for building user interfaces a complete ANSI C environment for building your test program logic and a collection of automated code generation tools as well as utilities for building automated test systems monitoring applications or laboratory experiments e ComponentWorks for Visual Basic is a collection of ActiveX controls designed for building virtual instrumentation systems Based on ActiveX technology ComponentWorks controls are configured through simple property pages You can use the ComponentWorks NI Serial Hardware and Software for Windows 1 10 ni com Chapter 1 Introduction GPIB Serial and VISA I O controls and property pages to set u
59. 00 ccccccsssscccecsesscceecceesssseeeeeeseseeeseecesseeeee C 19 Windows Me Ox C 20 Windows NT a vetet ove C 22 National Instruments Corporation C 1 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software PCI Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove the hardware information To do so complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Select the Hardware tab and click the Device Manager button Double click the Multi function adapters icon 4 From the Multi function adapters list right click the National Instruments interface that you want to uninstall as shown in Figure C 1 Device Manager B ni x Action View Pu Monitors Multifunction adapters x PCI 232 8 Multi Function Parent PENI PCI 485 4 Isolated Multi Function Parent Big Network adapters Disable Ports COM amp LPT Communications Port COM3 mf N I PCI 232 8 Communications Port 1 COM36 Properties x N I PCI 232 8 Communications Port 2 COM3 x N I PCI 232 8 Communications Port 3 COM33 F N I PCI 232 8 Communications Port 4 COM32 wo N I PCI 232 8 Communications Port 5 COM11
60. 00 C 2 PCI Windows Me 9x C 3 PCI Windows NT C 5 PCMCIA Windows 2000 C 13 PCMCIA Windows Me 9x C 15 PCMCIA Windows NT C 17 PXI Windows 2000 C 7 PXI Windows Me 9x C 9 PXI Windows NT C 11 uninstalling serial software Windows 2000 C 3 C 8 C 14 C 20 Windows Me 9x C 5 C 10 C 17 C 22 Windows NT C 6 C 12 C 18 C 23 USB common questions D 16 versions differences between D 24 USB Serial hardware status LEDs 7 17 using FIFO buffers 2 8 2 16 3 8 3 15 4 6 5 7 5 14 6 8 6 17 using serial hardware 7 1 using this manual 1 1 V verifying hardware installation AT Windows 2000 6 3 AT Windows Me 9x 6 11 AT Windows NT 6 21 PCI Windows 2000 2 3 PCI Windows Me 9x 2 11 PCI Windows NT 2 19 PCMCIA Windows 2000 5 3 PCMCIA Windows Me 9x 5 9 PCMCIA Windows NT 5 17 PXI Windows 2000 3 4 PXI Windows Me 9x 3 11 PXI Windows NT 3 18 USB Windows 2000 4 2 verifying hardware resources AT Windows Me 9x 6 13 PCMCIA Windows Me 9x 5 11 NI Serial Hardware and Software for Windows Index viewing or changing communication port settings Windows 2000 2 5 3 5 4 3 5 5 6 5 Windows Me 9x 2 14 3 13 5 12 6 14 Windows NT 2 20 3 19 5 18 6 22 VISA See NI VISA NI Serial Hardware and Software for Windows I 12 W Web professional services F 1 technical support F 1 Win32 Overviews and Win32 Reference 7 1 Win32 Software Development Kit 7 1 worldwide technical support F 2 n
61. 1 Select Start Settings Control Panel and double click the niports icon A list of installed National Instruments ports appears as shown in Figure 3 10 National Instruments Ports Ea Settings Zi Delete P1 8422 Isolated RS 232 4 Ports COME P51 8422 Isolated RS 232 4 Ports COM P 1 8422 Isolated RS 232 4 Ports COMS PxI 8422 Isolated RS 232 4 Ports Add a New PCMCIA card PCMCIA 485 he Add Figure 3 10 niports Configuration Utility 2 Select the port that you want to configure and refer to the following instructions National Instruments Corporation To remove hardware information about the port from Windows NT click the Delete button You should do this before you remove your hardware To view or change the port settings click the Settings button For more information about the settings refer to the next section General Port Settings In the General Port Settings dialog box click the Resources button to view the resources for the port 3 19 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration General Port Settings The following sections describe the options you can set in the General Port Settings dialog box shown in Figure 3 11 General Port Settings Ea PXI 8422 Isolated RS 232 4 Ports Serial Number 345762 PORT 1 COM Port Number E Transceiver Mode v
62. 232 4 Communications Port COME N I PCMCIA 232 4 Communications Port COM R N I PCMCIA 232 4 Communications Port COM8 Printer Port LPT2 Lr operties Refresh Remove 5 HI oo ee Ed tees Figure C 8 Selecting an Interface to Uninstall 6 Click the Remove button Note To remove ports on two four port cards from within the Device Manager you must open the Multi function adapters class select the name of your interface and click the Remove button 7 Inthe Confirm Device Removal dialog box click the OK button to remove this interface or click Cancel to cancel your request NI Serial Hardware and Software for Windows C 16 ni com Appendix C Uninstalling the Hardware and Software Uninstall the Software Before uninstalling the software remove all serial port information from the Windows Me 9x Device Manager as described in the previous section You do not need to shut down Windows Me 9x before uninstalling the software Complete the following steps to remove the NI Serial software 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs Properties dialog box appears This dialog box lists the software available for removal 3 Select the serial software you wa
63. 485 two and four port serial cards PXI RS 485 two and four port serial cards and AT RS 485 two and four port serial cards there are four user configurable bias resistors in front of each connector These resistors are socketed and pre loaded with 620 resistors They are connected to the receive signals of each port to maintain a known state when the bus is idle The connections are made as follows e RXD and CTS are pulled up to 5 V e RXD and CTS are pulled down to GND Rather than using two 620 Q resistors at one node you can increase the value of the resistors and put them at every node For instance if there are NI Serial Hardware and Software for Windows 7 8 ni com Chapter 7 Using Your Serial Hardware eight nodes in a system you can use 4 7 kQ resistors at each node to effectively achieve the same result On the USB 485 hardware there are programatically controlled onboard bias resistors In addition the USB 485 two and four port hardware has user configurable socketed bias resistors By default the USB 485 hardware uses the programatically controlled bias resistors which are connected to the receive signals of each port to maintain a known state when the bus is idle The connections are made as follows e RXD and CTS are pulled up to 3 3 V e RXD and CTS are pulled down to GND Figure 7 2 shows a USB transmission line using bias resistors 3 MN MES Control id on USB 485 two and four port
64. 5 6 by 54 0 by 0 5 cm 3 370 by 2 126 by 0 197 in connector eene Adapter cable with DB 9 Dsub connector and converter for PC card Power requirement from PCMCIA expansion slot PCMCIA 232 X5 40 mA typical 150 mA maximum PCMCIA 485 110 mA typical 225 mA maximum FS VDU riora hte 60 mA typical 250 mA maximum PCMCIA 485 2 15 VDGi su eU 150 mA typical 400 mA maximum PCMCIA 232 A4 T3 DG acts 60 mA typical 200 mA maximum Operating environment Ambient temperature 0 to 55 Relative humidity 10 to 9096 noncondensing Storage environment Ambient temperature 40 to 120 Relative humidity 5 to 9596 noncondensing EM i ee EEUU ee FCC Class A verified National Instruments Corporation E 9 NI Serial Hardware and Software for Windows Appendix E Specifications Software Specifications Maximum serial transfer rate AT Serial Hardware Your software port Settings view indicates the maximum rate typically 921 6 k for your hardware Nonisolated Two Port Boards DIMENSIONS eerte tete tix connector Power requirement from PC AT I O channel AT 485 2 Isolated Two Port Boards Dimensions connector 10 67 by 16 51 cm 4 2 by 6 5 in D
65. 50 41 33 24 16 7 TXD 9 RI 9 National Instruments Corporation A 7 NI Serial Hardware and Software for Windows Appendix A Connector Descriptions 100 Pin Connector Figure A 6 and Table A 5 give the pin locations and descriptions of the 100 pin connector 9 PIN 100 l pfa PIN 50 PIN 51 u e PIN 1 Figure 6 100 Pin Connector Pin Locations NI Serial Hardware and Software for Windows A 8 ni com Appendix A Connector Descriptions Table A 5 100 Pin Connector Pin Descriptions 100 Pin Connector Port 232 232 D Sub 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Signal Connector 2 46 6 42 10 38 14 34 DCD 1 147 7 43 11 39 15 35 18 32 20 30 22 28 24 26 RXD 2 4 48 8 44 12 40 16 36 19 33 21 31 23 29 25 27 TXD 3 5 49 9 45 13 41 17 37 DTR 4 1 1 1 1 50 50 50 50 51 51 51 51 100 100 100 100 GND 3 52 96 56 92 60 88 64 84 DSR 6 53 97 57 93 61 89 65 85 68 82 70 80 72 78 74 76 RTS 7 54 98 58 94 62 90 66 86 69 83 71 81 73 79 75 TA CTS 8 55 99 59 95 63 91 67 87 RI 9 These signals are not supported on ports 9 16 of the 16 port PCI and PXI serial boards
66. A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada Compliance to EU Directives Readers in the European Union EU must refer to the Manufacturer s Declaration of Conformity DoC for information pertaining to the CE Marking compliance scheme The Manufacturer includes a DoC for most every hardware product except for those bought for OEMs if also available from an original manufacturer that also markets in the EU or where compliance is not required as for electrically benign apparatus or cables To obtain the DoC for this product click Declaration of Conformity at ni com hardref nsf This Web site lists the DoCs by product family Select the appropriate product family followed by your product and a link to the DoC appears in Adobe Acrobat format Click the Acrobat icon to download or read the DoC The CE Marking Declaration of Conformity contains important supplementary information and instructions for the user or installer Contents About This Manual ConventIOnS eiie a OR AA e OE ix Related Documentatlon en aede teo ES aE RNE x Chapter 1 Introduction How to Use this Manual eer ee tee E AE a EA 1 1 What You Need to Get Started sse 1 2 Optional Equipment ii t eet erre e eee pale E 1 3 Serial Hardware 1 3 PCLEKits 25 2 I de dnte enm edi ee eee eio ede esed 1 3 7 ean
67. B 9 390 mA 510 mA 260 mA 340 mA 140 mA 180 mA 70 mA 100 mA typical maximum typical maximum typical maximum typical maximum 10 67 by 18 70 cm 4 2 by 7 4 in 1 Actual speed may vary considerably from speed shown due to system and instrumentation capabilities NI Serial Hardware and Software for Windows E 10 Isolation voltage From Port to Port From Any Port to Host Computer tee Power requirement from PC AT I O channel AT 485 2 Isolated Nonisolated Four Port Boards Dimensions eem Power requirement from PC AT I O channel AT 485 4 Appendix E Specifications 3 000 Vyins 60 s 2 000 V m 60 s 220 mA typical 260 mA maximum 160 mA typical 200 mA maximum 10 67 by 16 51 cm 4 2 by 6 5 in 10 position modular jack 160 mA typical 200 mA maximum 110 mA typical 150 mA maximum 160 mA typical 200 mA maximum 110 mA typical 150 mA maximum 1 The four port AT serial board requires a cable to convert the 10 position modular jack to either DB 9 or DB 25 connectors National Instruments Corporation E 11 NI Serial Hardware and Software for Windows Appendix E Specifications Isolated Four Port Boards Dimensions 10 67 by 25 40 cm 4 2 by 10 0 in I O connector sese 10 position modular jack Isolation voltage From P
68. CI serial boards require a breakout box which is included in your kit to separate the 100 position connector to 16 DB 9 connectors National Instruments Corporation E 8 NI Serial Hardware and Software for Windows Appendix E Specifications Environmental Characteristics Operating environment Ambient temperature 0 to 55 C Relative humidity 10 to 90 noncondensing Storage environment Ambient temperature 40 to 85 C Relative humidity 5 to 9596 noncondensing EMI eu eb eres FCC Class A Verified Software Characteristics Maximum serial transfer rate RS 4895 reed 460 800 bps RS2232 5 hacen eni 115 200 bps PXI Serial Hardware Two Port Boards Dimensions ence 100 by 160 mm 3 94 by 6 37 in connector DB 9 Power requirement from PXI channel PXI 8420 2 45 VDO c ae a 100 mA typical 150 mA maximum x12 20 mA typical 200 mA maximum PXI 8421 2 9 VDC x 2i es aed 350 mA typical 750 mA maximum PXI 8422 2 VDC i icis ient 400 mA typical 650 mA maximum 1 Actual speed may vary considerably from speed shown due to system and instrumentation capabilities NI Serial Hardware and Software for Windows E 4 ni com Appendix E Specifications PXI 8423 2 FS VDGic seed 800 mA typical 1 300 mA maximum Four Port Boards Dimensions ie Re 100 b
69. Dialog Box 4 5 NI Serial Hardware and Software for Windows Chapter 4 USB Serial Hardware Installation Verification and Configuration The following sections describe the advanced settings options Transceiver Mode This field shows the transceiver mode in use For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Bias Resistors Enabled To enable the programmatically controlled bias resistors check this box This checkbox applies only to USB 485 hardware For more information about bias resistors refer to Chapter 7 Using Your Serial Hardware FIFO Buffers Enabled The FIFO buffers for USB serial hardware are always enabled and cannot be adjusted COM Port Number Use this field to select the COM port number for your device Restore Defaults To reset the fields to their default values at any time click the Defaults button NI Serial Hardware and Software for Windows 4 6 ni com PCMCIA Serial Hardware Installation Verification and Configuration This chapter describes how to install the NI Serial software and PCMCIA serial hardware and how to verify the installation It also describes how to view or change the communication port settings To begin your installation see the section of this chapter containing instructions for your operating system Windows 2000 XP Windows Me 9x or Windows NT Windows 2000 XP Install the Software Before you install your serial h
70. ERIAL GET INTERFACE TYPE CTL CODE FILE DEVICE SERIAL PORT 4050 METHOD BUFFERED FILE ANY ACCESS To retrieve the serial interface type use NISERIAL GET INTERFACE TYPE and DeviceloControl with the following code SERIAL INTERFACE serial interface ULONG bytecount DeviceloControli comhandle NISERIAL GET INTERFACE TYPE NI Serial Hardware and Software for Windows 7 18 ni com Chapter 7 Using Your Serial Hardware PVOID NULL 0 PVOID amp serial interface Sizeof serial interface amp bytecount NULL National Instruments Corporation 7 19 NI Serial Hardware and Software for Windows Connector Descriptions Connecting Cables For the PCMCIA and USB hardware and two port PCI PXI and AT serial hardware you can use the standard DB 9 connector found on most serial cables To use the DB 9 connector with the four port PCI PXI and AT serial hardware you need the 10 position modular jack to DB 9 cable which is available from National Instruments You can also use a DB 25 connector with the four port serial boards by ordering the 10 position modular jack to DB 25 converter cable from National Instruments The eight port serial boards include a pig tail cable adapter providing eight standard DB 9 connectors The 16 port boards include a breakout box providing 16 standard DB 9 connectors Note achieve the specified isolation voltage for four port isolated PCI PXI or AT serial boards use only the 10 po
71. F Keyboard Monitor A Mouse BY Network adapters Ports COM amp LPT J Communications Port COM1 Communications Port COM2 E N I AT 232 4 Communications Port COM10 F N I AT 232 4 Communications Port COM R N I AT 232 4 Communications Port COM8 E AT 232 4 Communications Port COMS E N I AT 485 2 Communications Port COM5 R AT 485 2 Communications Port COMB A Printer Port LPT1 System devices Properties Refresh Remove Print OG EHE Figure 6 6 Device Manager Ports List for AT Serial Board Correctly Installed Verify the Hardware Resources For every port of the newly installed serial interface double click the name of the serial port in the Device Manager Then click the Resources tab If the resources were assigned correctly the Resources page shows which resources are assigned to your serial ports If Windows Me 9x did not assign any resources to the port the Resources page shows only a Set Configuration Manually button Click the Set Configuration Manually button and try to assign conflict free resources to your serial hardware For instructions refer to the Selecting Conflict Free Resources section of Appendix D Troubleshooting and Common Questions You may have to free an interrupt request level so that one can be assigned to your serial hardware For instructions refer to the Freeing an Interrupt Request Level section of Appendix D Tr
72. FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT INJURY TO A HUMAN 2 IN ANY APPLICATION INCLUDING THE ABOVE RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY COMPUTER HARDWARE MALFUNCTIONS COMPUTER OPERATING SYSTEM SOFTWARE FITNESS FITNESS OF COMPILERS AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION INSTALLATION ERRORS SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES TRANSIENT FAILURES OF ELECTRONIC SYSTEMS HARDWARE AND OR SOFTWARE UNANTICIPATED USES OR MISUSES OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER COLLECTIVELY TERMED SYSTEM FAILURES ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF HARM TO PROPERTY OR PERSONS INCLUDING THE RISK OF BODILY INJURY AND DEATH SHOULD NOT BE RELIANT SOLELY UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE TO AVOID DAMAGE INJURY OR DEATH THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES INCLUDING BUT NOT LIMITED TO BACK UP OR SHUT DOWN MECHANISMS BECAUSE EACH END USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION DESIGNER MAY USE NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN
73. For instructions on how to use the Device Manager refer to chapter with installation instructions for your hardware platform The mode you select in the Device Manager is automatically configured when you open a port on a serial interface For PCI PXI PCMCIA AT you can also set the hardware transceiver control mode from within a DOS application For each port you want to control write the control byte for the mode you want to select to the scratch register of the UART Table 7 4 shows the control bytes for each mode National Instruments Corporation 7 5 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware Table 7 4 Transceiver Mode Control Bytes Transceiver Mode Control Byte Four wire mode 0x00 Two wire mode DTR controlled with echo 0x01 Two wire mode DTR controlled with echo 0x02 Two wire mode Auto Control 0x03 The scratch register is located at offset 7 from the base address of the port For example if were located at base address Ox3F8 and you want to set the board to two wire mode with DTR control you would write a 0x02 to address Ox3FF The board would immediately switch to the two wire mode with DTR control Windows NT To set the transceiver control mode use the serial configuration utility For instructions on how to use the utility refer to chapter with installation instructions for your hardware platform The mode you select in the configuration u
74. I Windows NT 2 17 PCMCIA Windows 2000 5 2 PCMCIA Windows Me 9x 5 8 PCMCIA Windows NT 5 16 PXI Windows 2000 3 2 PXI Windows Me 9x 3 9 PXI Windows NT 3 16 USB Windows 2000 4 2 overview AT 1 8 PCI 1 3 PCMCIA 1 7 PXI 1 4 USB 1 6 selecting an interface to uninstall figure AT Windows 2000 C 19 AT Windows Me 9x C 21 AT Windows NT C 23 PCI Windows 2000 C 2 D 2 PCI Windows Me 9x C 4 PCI Windows NT C 6 PCMCIA Windows 2000 C 14 PCMCIA Windows Me 9x C 16 PCMCIA Windows NT C 18 PXI Windows 2000 C 8 PXI Windows Me 9x C 10 PXI Windows NT C 11 support for SDLC and ModBus protocols D 24 National Instruments Corporation Index uninstalling AT Windows 2000 C 19 AT Windows Me 9x C 20 AT Windows NT C 22 PCI Windows 2000 C 2 PCI Windows Me 9x C 3 PCL Windows NT C 5 PCMCIA Windows 2000 C 13 PCMCIA Windows Me 9x C 15 PCMCIA Windows NT C 17 PXL Windows 2000 C 7 PXI Windows Me 9x C 9 PXI Windows NT C 11 using 7 1 using USB Ethernet and plug in hardware on same machine D 26 using USB Ethernet and plug in hardware simultaneously D 26 serial hardware features table 7 2 serial port information B 1 serial ports maximum number D 26 serial ports sending data to when closed D 24 serial software installation Windows 2000 2 1 3 1 4 1 5 1 6 1 Windows Me 9x 2 9 3 9 5 8 6 9 Windows NT 2 17 3 16 5 15 6 18 overview 1 9 uninstalling
75. Instruments Corporation 2 19 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows NT Control Panel You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps 1 Select Start Settings Control Panel and double click the niports icon A list of installed National Instruments ports appears as shown in Figure 2 10 National Instruments Ports EG Ports NI PC 232 4 COMS COMS N I PCI Em COME N I PCI 232 4 Seling g Delete Add a New PCMCIA card PCMCIA 485 bd Add Figure 2 10 niports Configuration Utility 2 Select the port that you want to configure and refer to the following instructions e To remove hardware information about the port from Windows NT click the Delete button You should do this before you remove your hardware e To view or change the port settings click the Settings button For more information about the settings refer to the next section General Port Settings In the General Port Settings dialog box click the Resources button to view the resources for the port NI Serial Hardware and Software for Windows 2 20 ni com Chapter 2 PCI Serial Hardware Installation Verification a
76. NI Serial Serial Hardware and Software for Windows User Manual PCI PXI USB PCMCIA and AT Serial Hardware Wy NATIONAL January 2003 Edition gt INSTRUMENTS Part Number 370447B 01 Worldwide Technical Support and Product Information ni com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin Texas 78759 3504 USA 512 683 0100 Worldwide Offices Australia 61 2 9672 8846 Austria 43 0 662 45 79 90 0 Belgium 32 0 2 757 00 20 Brazil 55 11 3262 3599 Canada Calgary 403 274 9391 Canada Montreal 514 288 5722 Canada Ottawa 613 233 5949 Canada Qu bec 514 694 8521 Canada Toronto 905 785 0085 Canada Vancouver 514 685 7530 China 86 21 6555 7838 Czech Republic 42 02 2423 5774 Denmark 45 45 76 26 00 Finland 385 0 9 725 725 11 France 33 0 1 48 14 24 24 Germany 49 0 89 741 31 30 Greece 30 2 10 42 96 427 Hong Kong 2645 3186 India 91 80 4190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Malaysia 603 9059 6711 Mexico 001 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 64 09 914 0488 Norway 47 0 32 27 73 00 Poland 48 0 22 3390 150 Portugal 351 210 311 210 Russia 7 095 238 7139 Singapore 65 6 226 5886 Slovenia 386 3 425 4200 South Africa 27 0 11 805 8197 Spain 34 91 640 0085 Sweden 46 0 8 587 895 00 Switzerland 41 56 200 51 51 Taiwan 886 2 2528 7227 United Kingdom 44 0 1635 523545 For further support information see the T
77. OID NULL 0 PVOID amp serial ri out sizeof serial ri out amp bytecount NULL ys 5 To set the RS 232 signal DCD when the transceiver is in DCE mode use the following code ULONG bytecount DeviceloControli comhandle NISERIAL SET DCD PVOID NULL 0 PVOID NULL 0 amp bytecount NULL g 6 Toclearthe RS 232 signal DCD when the transceiver is in DCE mode use the following code ULONG bytecount DeviceloControli comhandle NISERIAL CLR DCD PVOID NULL 0 PVOID NULL 0 amp bytecount NULL E NI Serial Hardware and Software for Windows 7 16 ni com Chapter 7 Using Your Serial Hardware 7 retrieve the current state of the RS 232 signal DCD when the transceiver is in DCE mode use the following code SERIAL DCD OUT serial out ULONG bytecount DeviceloControl comhandle NISERIAL GET DCD PVOID NULL 0 PVOID amp serial out Sizeof serial out amp bytecount NULL Status LEDs The USB Serial two and four port hardware uses bicolor LEDs to indicate device and port status Table 7 6 describes these LEDs Figure 7 3 shows their location Table 7 6 USB Serial LEDs LED Description Ready Dim Red Powered but not connected to USB USB 485 4 only Red Powered and connected to USB but not fully configured Yellow Device is ready normal operation Blinking Red or Red Yellow Device error Contact NI Port x S
78. OMI COM2 COM3 change the base address of the port To do so refer to the Troubleshooting Diagnostic Messages section When you change the base address Windows Me 9x automatically converts it to the corresponding COM name listed in Table D 1 You do not need to change the IRQ setting for Windows Me 9x to change the name USB ports do not have base addresses and thus cannot be renamed to COMI 2 CONG Table 0 1 Standard DOS Based Addresses COM Port Base Address COMI 3f8 COM2 2f8 COM3 3e8 COM4 2e8 All Other Operating Systems Refer to the general port settings section in the installation and verification chapter for your hardware platform NI Serial Hardware and Software for Windows D 20 ni com Appendix D Troubleshooting and Common Questions What is the maximum baud rate supported and how can I set it The maximum baud rates supported are listed in Table D 2 To set the baud rate use the SetCommState Win32 function and pass the actual value of the baud rate in the BaudRate field of the DCB structure Table D 2 Maximum Baud Rate Hardware Platform Maximum Baud Rate PCI PXI AT 232 PCMCIA 232 4 115 2 kbits s All other PCMCIA 921 6 kbits s AT 485 115 2 kbits s USB 232 230 4 kbits s PCI PXI USB 485 460 8 kbits s Older versions of the serial hardware may support lower maximum baud rates The NI Serial software also includes a
79. ONG SERIAL CONNECTION define SERIAL CONNECTION INVALID 0x00 define SERIAL CONNECTION VALID 0x01 typedef struct SERIAL RS232 STATE TRANSCEIVER MODE PortMode SERIAL CONNECTION Connection SERIAL RS232 STATE PSERIAL RS232 STATE define NISERIAL GET RS232 STATE CTL CODE FILE DEVICE SERIAL PORT 4082 METHOD BUFFERED FILE ANY ACCESS 2 To retrieve the current RS 232 transceiver state use NISERIAL GET RS232 STATE and DeviceloControl with the following code ULONG bytecount SERIAL RS232 STATE serial rs232 state DeviceloControl comhandle NISERIAL GET RS232 STATE PVOID NULL 0O PVOID amp serial rs232 state sizeof serial rs232 state amp bytecount NULL Setting Ring Indicate and DCD with DeviceloControl The NI Serial software uses programmatic control codes and the DeviceloControl Windows function for programming the RS 232 signals Ring Indicate RI and Data Carrier Detect DCD To set and retrieve these RS 232 signals complete the following steps Note You use the header file NISerial h included on your CD to integrate this code into your program easily NI Serial Hardware and Software for Windows 7 14 ni com National Instruments Corporation Chapter 7 Using Your Serial Hardware Add the following lines to your source code include winioctl h typedef bool SERIAL RI OUT define SERIAL RI ON true define SERIAL RI OFF false typedef bool SERIAL DCD OUT define
80. P 23 2v Ett rp etie cet a e pd REED A 3 1 Install the Softw te iiie teet evite ret resi ei 3 1 Install the Hardware retener eerie 3 2 Verify the Installation na naa 3 4 Configure Communication Port Settings essen 3 5 Windows Me 9x 43 36 sedi c destin silence EE e dt es 3 9 Install the Softwa re 2 ient ter ree tei eet etes 3 9 Install the Hardwate 2 eite tete etr 3 9 Verify the Installation etg edes t tne 3 11 Configure Communication Port Settings esse 3 13 Windows NT iion titii tert e e B i e preste deed 3 16 Install the SoftWare o e ed ne eee ente e IIR erts 3 16 Install the Hardware etae ete er e ete Rd dee 3 16 Verify the Installation ei de v e e ER E EAR 3 18 Configure Communication Port Settings eene 3 19 Chapter 4 USB Serial Hardware Installation Verification and Configuration Install the Software ane rre REN Pe E 4 1 Install the Hardware nei ce ag e de reb ettet g ees 4 2 Verity the Installation a 5 5 0 5 tei aro dr ere n Rete dern rne RE 4 2 Configure Communication Port Settings seen 4 3 Port Settings Tab eR teet t eA es ree 4 4 Advanced Settings e et ee at e wt eet 4 5 Restore Defaults eere ted ate Rit 4 6 Chapter 5 PCMCIA Serial Hardware Installatio
81. PCI serial port that you want to uninstall Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software complete the following steps 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall 3 Select the NI Serial software you want to uninstall and click the Add Remove button The uninstallation program removes all folders utilities and registry entries associated with the NI Serial software 4 Shutdown Windows NT power off your computer and physically remove the serial interfaces from your system The uninstallation program removes only items that the setup wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself NI Serial Hardware and Software for Windows C 6 ni com Appendix C Uninstalling the Hardware and Software To reinstall the hardware and software refer to Chapter 2 PCI Serial Hardware Installation Verification and Configuration PXI Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove the hardware information To do so
82. PXI or CompactPCI chassis plugged in so that it remains grounded while you install the PXI serial board Find an unused PXI or CompactPCI 5 V peripheral slot Remove the corresponding filler panel Touch a metal part on your chassis to discharge any static electricity aN a po Insert the PXI serial board into the 5 V slot Use the injector ejector handle to fully inject the device into place Figure 3 9 shows how to install the PXI serial board into a PXI or CompactPCI chassis 1 Injector Ejector Handle In Down Position 3 PXI Chassis 2 PXI Serial Board 4 Injector Ejector Rail Figure 3 9 Installing the PXI Serial Board National Instruments Corporation 3 17 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration 6 Screw the PXI serial board front panel to the front panel mounting rail of the PXI or CompactPCI chassis 7 Turn on your PXI or CompactPCI chassis and start Windows NT The serial hardware installation is complete Verify the Installation To verify the hardware and software installation complete the following steps 1 Determine which physical port is associated with COMx as follows a Select Start Settings Control Panel and double click the niports icon A list of installed National Instruments ports with their logical names appears If your interface is not on this list refer to A
83. Port COM10 d N I AT 232 4 Shared IRQ Communications Port COM E N I AT 232 4 Shared IRQ Communications Port COM8 wv N I AT 232 4 Shared IRQ Communications Port COMS R N I AT 485 2 Communications Port 5 N I AT 485 2 Communications Port COME Mane moa reu IU Properties Refresh Remove Print Figure D 4 Multi Function Adapter Class in the Device Manager What is the relationship between bits per second throughput and bus utilization The term bits per second bps refers to the bit rate of data transfer with 1 bps being the length of time required to transmit one bit Throughput is the actual data transfer measured by amount of data transmitted time required to transmit Bus utilization is the percentage of time that the serial bus is actively transmitting data Because a wide range of factors such as flow control processor latency and device architecture can affect serial performance bus utilization often is not 100 In addition there is overhead associated with serial communication in the form of start bits stop bits and parity bits This overhead reduces the throughput by 20 30 Thus the actual data throughput can be considerably less than the bits per second setting National Instruments Corporation D 23 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions What is the
84. SET RS485 MODE 15 define SERIAL IOCTL SET TRANSCEIVER MODE CTL CODE FILE DEVICE SERIAL PORT 37 METHOD BUFFERED FILE ANY ACCESS National Instruments Corporation To retrieve the current RS 485 transceiver control mode you can use NISERIAL GET RS485 MODE and DeviceloControl with the following code ULONG bytecount TRANSCEIVER MODE transceiver mode DeviceloControl comhandle NISERIAL GET RS485 MODE PVOID NULL 0 PVOID amp transceiver mode sizeof transceiver mode amp bytecount NULL 7 7 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware Bias Resistors An RS 485 transmission line enters an indeterminate state if no nodes are transmitting on it This indeterminate state can cause the receivers to receive invalid data bits from noise picked up on the cable To prevent a line from receiving these data bits the transmission line can be forced into a known state by installing two bias resistors at one node on the transmission line Doing so creates a voltage divider that forces the voltage between the differential pair to be greater than 200 mV the threshold voltage for the receiver You should install these resistors on only one node Figure 7 1 shows a transmission line using bias resistors 5 E 620 Q Bias Resistor Bx E 100 Q Termination Resistor 620 Q Bias Resistor V Figure 7 1 Transmission Line Using Bias Resistors On the PCI RS
85. Shutdown Windows Me 9x power off your computer and physically remove the serial interfaces from your system The uninstallation program removes only items that the setup wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 2 PCI Serial Hardware Installation Verification and Configuration Windows NT Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove the hardware information To do so complete the following steps l Loginas Administrator oras a user who has Administrator privileges 2 Select Start Settings Control Panel and double click the niports icon 3 From the Ports list select the port of the board you want to uninstall as shown in Figure C 3 National Instruments Corporation C 5 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software National Instruments Ports xi Ports 7 N L PCI 232 4 8 N I PCI 232 4 COMS N I PCI 232 4 COME N I PCI 232 4 Settings Delete Add a New PCMCIA card PCMCIA 485 Add Figure C 3 Selecting an Interface to Uninstall 4 Click the Delete button 5 Repeat steps 3 and 4 until you have removed every
86. _Defauts Receive Buffer Low 1 J High 14 Transmit Buffer Low 1 High 16 Figure 5 8 Advanced Port Settings Dialog Box The following sections describe the advanced settings options Transceiver Mode This field shows the transceiver mode in use and applies only to PCMCIA 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e If transfer rates are high you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive Buffer value is above your data sizes your system is less efficient Therefore set the Receive Buffer value below your data sizes NI Serial Hardware and Software for Windows 5 14 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configura
87. al Hardware All serial hardware uses standard 16550 compatible UARTs Universal Asynchronous Receiver Transmitters for complete compatibility with standard PC COM ports The serial hardware contains FIFOs First In First Out buffers to reduce susceptibility to interrupt latency for faster transmission rates Full Plug and Play compatibility allows switchless configuration and installation For more information about the serial hardware specifications and operating conditions refer to Appendix E Specifications NI Serial Hardware and Software for Windows 1 8 ni com Chapter 1 Introduction NI Serial Software Overview The NI Serial software for Windows 2000 NT XP Me 9x includes either a native Windows 2000 XP Me 9x device driver and Windows NT kernel driver that provide full interrupt driven buffered I O for multiple plug in COM ports or a native Windows 2000 XP device driver that provides buffered I O for multiple USB COM ports The maximum baud rates and maximum number of COM ports vary between hardware and operating systems as shown in Table 1 2 and Table 1 3 Table 1 2 Maximum Number of COM Ports Operating Maximum Number of Maximum Number System COM Ports Plug In of COM Ports USB Windows 95 99 Windows 98 99 Windows Me 99 Windows NT 99 Windows 256 256 2000 XP If you require additional ports contact National Instruments Table 1 3 Maximum Baud Rate
88. all serial board entries are removed Then click Refresh to force Windows Me 9x to detect the serial hardware and display the New Hardware Found dialog box Windows NT Missing Serial Port in the niports List PCI and PXI Boards The serial configuration utility contains configuration information for serial hardware that is installed in your system To start the configuration utility select Start Settings Control Panel and double click the niports icon NI Serial Hardware and Software for Windows D 12 ni com Appendix D Troubleshooting and Common Questions If your PCI or PXI serial hardware is missing from this list complete the following steps 1 Physically make sure that your board is installed properly 2 Make sure that the National Instruments serial driver is installed as follows a Locate serial sys in the WinNT system32 drivers directory b Right click serial sys and select Properties c Click the Version tab If the Company Name is Microsoft the National Instruments serial driver is not installed properly To solve this problem reinstall the NI Serial software For instructions on how to do so refer to the installation and verification chapter for your hardware platform AT Boards The serial configuration utility niports contains configuration information for serial hardware it is aware of that is installed in your system To start the configuration utility select Start Settings Control Panel and
89. alled properly If it fails refer to Appendix D Troubleshooting and Common Questions for troubleshooting instructions After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows Me 9x Device Manager You can use it to view or change the configuration of your serial ports Complete the following steps to configure the serial port Repeat the configuration procedure for each serial port in your system 1 Select Start Settings Control Panel and double click the System icon The System Properties window appears 2 Select the Device Manager tab and click the View devices by type button at the top of the page NI Serial Hardware and Software for Windows 6 14 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration Double click the Ports COM amp LPT icon Double click the name of the port you want to configure You can now view or change information about your serial port in the following ways e To view the hardware resources assigned to the serial port click the Resources tab e To view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab e To change the RS 485 transceiver mode or to enable or
90. anel and double click the System icon Click the Hardware tab and then click the Device Manager button or select the Device Manager tab Double click the Ports COM amp LPT icon to display all ports Verify that all installed ports are visible NI Serial Hardware and Software for Windows 4 2 ni com Chapter 4 USB Serial Hardware Installation Verification and Configuration REE Action View je E Network adapters Ports COM amp LPT Communications Port COM1 Communications Port COM2 ECP Printer Port LPT1 F N I USB 485 4 SN CECCO6 Communications Port 1 COM14 N I USB 485 4 SN CECCO6 Communications Port 2 COM15 E N I USB 485 4 SN CECCO6 Communications Port 3 COM16 N I USB 485 4 SN CECCO6 Communications Port 4 COM17 SCSI and RAID controllers Sound video and game controllers m System devices 0 4 8 8 E Le Figure 4 1 Device Manager for USB Serial Board Ports Optional To determine which physical port is associated with COMx note the Port 1 Port 2 etc entries next to the COM numbers To run the diagnostic utility select Start Programs National Instruments NI Serial USB Diagnostics The diagnostic utility verifies that your software is installed properly and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed
91. ar jack to DB 25 cable PCI PXI and AT four port boards only e 68 pin to DB 9 adapter cable PCI and PXI eight port boards only e RS 232 9 pin to 9 pin null modem cable e RS 232 9 pin to 9 pin straight through cable e RS 232 9 pin to 25 pin null modem cable e RS 485 9 pin to 9 pin null modem cable e Breakout box PCI PXI 232 16 port board only e External power supply USB 485 4 only e USB cable USB only Serial Hardware Overview PCI Kits The serial hardware gives you a variety of solutions for serial communication The PCI 232 boards work with the RS 232 protocols and the PCI 485 boards work with the RS 422 and RS 485 protocols You can use the PCI 232 boards for serial communication up to distances of 50 ft You can connect the PCI 485 boards to up to 31 devices using serial cable lengths up to 4 000 ft Additionally the PCI serial boards are available in a two port version PCI 232 2 and PCI 485 2 a four port version PCI 232 4 and PCI 485 4 an eight port version PCI 232 8 and PCI 485 8 and a 16 port version PCI 232 16 The two port versions use DB 9 connectors The four port versions use 10 position modular jacks to provide all four connections on a single back panel Optional cable accessories convert the 10 position modular jacks to either DB 9 or DB 25 connectors with standard pinouts The eight port versions use adapter cables to convert the 68 pin connector on the board to eight DB 9 connectors The 16
92. ards are designed for applications in harsh environments Isolated ports provide reliable communication in situations involving ground loops from different ground levels or high common mode voltage induced on the lines in noisy environments Nonisolated ports may not provide reliable communication in those situations The isolation between each communication port and the host PC ensures the safe operation of the PC and the devices connected to other ports on the same board in case of accidental high voltages on communication lines The RS 485 boards PXI 8421 and PXI 8423 support four hardware transceiver control modes for reliable communication with two and four wire devices For more information about transceiver control modes refer to Chapter 7 Using Your Serial Hardware All serial hardware uses standard 16550 compatible UARTs Universal Asynchronous Receiver Transmitters for complete compatibility with standard PC COM ports The serial hardware contains FIFOs First In First Out buffers to reduce susceptibility to interrupt latency for faster transmission rates Full Plug and Play compatibility allows switchless configuration and installation For more information about the serial hardware specifications and operating conditions refer to Appendix E Specifications National Instruments Corporation 1 5 NI Serial Hardware and Software for Windows Chapter 1 Introduction Table 1 1 lists the PXI serial board numbers and correspondi
93. ardware complete the following steps to install the NI Serial software for Windows 2000 XP 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears 3 Click the Add New Programs button and then the CD or Floppy button 4 When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button 5 When prompted click the Finish button to install the program files from the CD 6 The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To exit the setup wizard at any time click the Cancel button 7 Ifyou need to install your hardware or if this is your first time to install the NI Serial software for Windows 2000 XP skip to the next section Install the Hardware Otherwise continue to step 8 National Instruments Corporation 5 1 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration 8 Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish When you complete the wizard continue to the Verify the Installation section If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions I
94. are for Windows Appendix B Serial Port Information RS 422 distances of 50 ft and with data rates up to 20 kbytes s However because of improvements in line drivers and cabling you can usually increase the actual performance of the bus past the limitations on speed and distance recommended in the specification RS 485 As specified in the EIA RS 422 A Standard Electrical Characteristics of Balanced Voltage Digital Interface Circuits RS 422 defines a serial interface much like RS 232 However RS 422 uses balanced or differential transmission lines Balanced transmission lines use two transmission lines for each signal The state of each signal is represented not by a voltage level on one line referenced to ground as in RS 232 but rather by the relative voltage of the two lines to each other For example the TX signal is carried on two wires wire A and wire B A logical 1 is represented by the voltage on line A being greater than the voltage on line B A logical 0 is represented by the voltage on line A being less than the voltage on line B Differential voltage transmission creates a signal that is more immune to noise as well as voltage loss due to transmission line effects Thus you can use RS 422 for longer distances up to 4 000 ft and greater transmission speeds up to 10 Mbytes s than RS 232 As specified in the EIA 485 Standard Standard for Electrical Characteristics of Generators and Receivers for Use in Balanc
95. assis to discharge any static electricity Insert the AT serial board into the slot with the serial connectors toward the opening on the back panel Make sure that you insert the board all the way into the slot The board might seem to click firmly into place even though it is only part of the way in Figure 6 1 shows how to install the AT serial board into an expansion slot NI Serial Hardware and Software for Windows 6 2 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration 2 2 Z P 1 PC 2 AT Socket 3 AT Serial Card Figure 6 1 AT Serial Board Installation 7 Screw the AT serial board mounting bracket to the back panel mounting rail of the computer Replace the cover Turn on your computer and start Windows 2000 XP 10 Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions The serial hardware installation is complete Verify the Installation To verify the hardware and software installation complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Hardware tab and then click the Device Manager button Natio
96. ated Communications Port 4 COM156 Printer Port LPT1 g Sound video and game controllers n System devices Scan for hardware changes Figure D 1 Selecting an Interface to Uninstall NI Serial Hardware and Software for Windows D 2 ni com Appendix D Troubleshooting and Common Questions 5 Choose the Uninstall option 6 Inthe Confirm Device Removal dialog box click the OK button to remove the hardware information or click the Cancel button to cancel your request 7 Click the Scan for Hardware Changes icon at the top of the Device Manager window 8 Windows 2000 should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish Troubleshooting Diagnostic Messages This section lists possible error messages returned by the diagnostic utility along with solutions No National Instruments Serial Port Found or Diagnostic Utility Does Not Show All Installed Ports Ifthe No National Instruments serial port found error message appears or the diagnostic utility does not show all the ports you installed complete all the steps in the Forcing Windows to Detect Your Hardware section Address Test Failed If the address test failed Interrupt test cannot be performed error message appears you might have an address conflict with legacy boards in your system To solve this problem change the
97. atic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on your serial board To install your PXI serial board complete the following steps 1 Turn off your PXI or CompactPCI chassis Keep the chassis plugged in so that it remains grounded while you install the PXI serial board Find an unused PXI or CompactPCI 5 V peripheral slot Remove the corresponding filler panel Touch a metal part on your chassis to discharge any static electricity Insert the PXI serial board into the 5 V slot Use the injector ejector handle to fully inject the device into place Figure 3 1 shows how to install the PXI serial board into a PXI or CompactPCI chassis NI Serial Hardware and Software for Windows 3 2 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration 1 Injector Ejector Handle In Down Position 3 PXI Chassis 2 PXI Serial Board 4 Injector Ejector Rail Figure 3 1 Installing the PXI Serial Board 6 Screw the PXI serial board front panel to the front panel mounting rail of the PXI or CompactPCI chassis 7 Turn on your PXI or CompactPCI chassis and start Windows 2000 XP Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish If the Found New Hardware Wizard does not appear
98. ation about transceiver modes refer to Chapter 7 Using Your Serial Hardware 5 save your changes click the OK button To exit without saving the changes click the Cancel button Port Settings Tab In the Port Settings tab you can change any of the settings by clicking the arrow button to the right of a field When you click the arrow button a list of valid values for that field appears and you can select the desired setting from the list Figure 3 7 shows the Port Settings tab PXI 8422 Isolated RS 232 4 Ports COM5 Properties EJ E3 Driver Resouces Figure 3 7 Port Settings Tab NI Serial Hardware and Software for Windows 3 14 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration Advanced Port Settings To view or change the advanced port settings click the Advanced button Figure 3 8 shows the Advanced Port Settings dialog box Advanced Port Settings x Transceiver Mode wire 4 wire 2 wire DTR echo OK 2 wire ctrl Use FIFO buffers ae Tet Cancel Select lower settings to correct connection problems Select higher settings for faster performance __Defauits Receive Buffer Low 1 R High 14 Transmit Buffer Low 1 High 16 Figure 3 8 Advanced Settings Dialog Box The following sections describe the advanced settings options Transceiver Mode This field shows the tran
99. ation and installation For more information about the serial hardware specifications and operating conditions refer to Appendix E Specifications PXI Kits The serial hardware gives you a variety of solutions for serial communication The RS 232 boards PX1 8420 and PXI 8422 work with the RS 232 protocols The RS 485 boards PXI 8421 and PXI 8423 work with the RS 422 and RS 485 protocols You can use the RS 232 boards for serial communication up to distances of 50 ft You can connect the RS 485 boards to up to 31 devices using serial cable lengths up to 4 000 ft NI Serial Hardware and Software for Windows 1 4 ni com Chapter 1 Introduction Additionally the PXI serial boards are available in a two port version a four port version an eight port version PXI 8420 and PXI 8421 only and a 16 port version PXI 8420 only The two port versions use DB 9 connectors The four port versions use 10 position modular jacks to provide all four connections on a single front panel Optional cable accessories convert the 10 position modular jacks to either DB 9 or DB 25 connectors with standard pinouts The eight port versions use two different adapter cables to convert the 68 pin connector on the board to eight DB 9 connectors The 16 port version uses a breakout box to convert the 100 pin connector on the board to sixteen DB 9 connectors Throughout this manual PXI serial boards refers to all versions of the PXI serial boards The isolated PXI bo
100. bly from speed shown due to system and instrumentation capabilities National Instruments Corporation E 7 NI Serial Hardware and Software for Windows Appendix E Specifications connector 9 USB USB series Power requirement from USB channel USB 485 2 9 VDO iege 300 mA typical 500 mA maximum USB 232 2 5 200 mA typical 500 mA maximum USB 232 4 T5 MDC eet terere 300 mA typical 500 mA maximum Power requirement from external supply USB 485 4 9 V 30V 12 MDC ure 225 mA typical 500 mA maximum Environmental Characteristics Operating environment Ambient temperature 0 to 70 C Relative humidity 10 to 90 noncondensing Storage environment Ambient temperature One pott nete 40 to 80 C Two and four port 40 to 85 Relative humidity 5 to 9596 noncondensing EMIL ie tiene eee us FCC Class A Verified Software Characteristics Maximum serial transfer rate eret 460 800 bps RS32325 oM sept eto 230 400 bps 1 Actual speed may vary considerably from speed shown due to system and instrumentation capabilities NI Serial Hardware and Software for Windows E 8 ni com Appendix E Specifications PCMCIA Serial Hardware Hardware Specifications DIMENSIONS As genaue 8
101. board Optional To determine which physical port is associated with COMx complete the following steps a In the Device Manager tab under Ports COM amp LPT double click the serial port COMx Click the Port Settings tab to display the serial number of the serial hardware and the physical port number starting at 1 For all serial hardware PORT refers to the top port PORT2 refers to the next port down and so on 2 13 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration To run the diagnostic utility select Start Programs National Instruments Serial Diagnostics The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows Me 9x Device Manager You can use it to view or change the configuration of your serial port
102. board documentation Interrupt Test Failed Ifthe Interrupt test failed error message appears you might have an IRQ conflict with legacy boards in your system To solve this problem change the IRQ level assigned to your legacy boards For instructions on how to do so refer to your legacy board documentation Windows 2000 XP Resolving Power Conflicts The USB 232 USB 232 2 USB 232 4 USB 485 and USB 485 2 are high power bus powered devices that require more than 100 mA during normal operation Thus they must be plugged into an externally powered hub that can deliver up to 500 mA per USB port If the USB network does not have enough power to support the USB serial hardware and a system dialog box informs you that there is not enough power for the device reconnect the hardware to an externally powered hub The USB 485 4 is a self powered device that requires external power If the device is plugged into a USB port and the device does not have power it will not enumerate and the ports will not show in the Device Manager To ensure proper port enumeration always make sure the USB 485 4 has external power before connecting it to the USB network NI Serial Hardware and Software for Windows D 16 ni com Appendix D Troubleshooting and Common Questions Forcing Windows to Detect Your Hardware If the diagnostic utility does not properly show your serial ports there may have been a problem loading the NI Serial USB drivers To so
103. button 4 When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button 5 When prompted click the Finish button to install the program files from the CD 6 The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To exit the setup wizard at any time click the Cancel button 7 Ifyou need to install your hardware or if this is your first time to install the NI Serial software for Windows 2000 XP skip to the next section Install the Hardware Otherwise continue to step 8 National Instruments Corporation 2 1 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration Install the Hardware If your hardware is already installed restart Windows 2000 XP Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish When you complete the wizard continue to the Verify the Installation section If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions Note If you are installing a PCI 485 you might need to adjust the value of the bias resistors depending on your application Bias resistors are not available on the eight port PCI 485 For more information
104. changes are automatically reflected to the child devices under Ports COM amp LPT Windows Me 9x Only AT and PCMCIA Boards Because the shared IRQ boards are single physical devices that support multiple ports they are registered as multi function adapters in the Device Manager Each port is a child device listed under Ports COM amp LPT Windows Me 9x does not allow the resources of the multi function child devices to be changed directly To change the resources of ports on shared IRQ boards from within the Device Manager you must open the Multi function adapters class and double click the Multi function Parent item that corresponds to your National Instruments serial interface Use the Resources page to change the resources Any resource changes are automatically reflected to the child devices Figure D 4 shows the Multi function adapters class in the Device Manager This example shows an AT interface NI Serial Hardware and Software for Windows D 22 ni com Appendix D Troubleshooting and Common Questions System Properties 21 x General Device Manager Hardware Profiles Performance View devices by type View devices by connection UB Monitor 4 Mouse x Multifunction adapters gt N I AT 232 4 Multi function Parent BY Network adapters PCMCIA socket Ports COM amp LPT I Communications Port COM1 wv Communications Port COM2 i N I AT 232 4 Shared IRQ Communications
105. ck when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e ftransfer rates are high you can lower the Receive FIFO size value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive FIFO size value is above your data sizes your system is less efficient Therefore set the Receive FIFO size value below your data sizes Resources To view the resource configuration dialog box for the selected port click the Resources button You cannot change these resources they are automatically assigned NI Serial Hardware and Software for Windows 2 22 ni com PXI Serial Hardware Installation Verification and Configuration This chapter describes how to install the NI Serial software and PXI serial hardware and how to verify the installation It also describes how to view or change the communication port settings To begin your installation see the section of this chapter containing instructions for your operating system Windows 2000 XP Windows Me 9x or Windows NT Windows 2000 XP Install the Software Before you install your serial hardware complete the following steps to install the NI Serial software for Windows 2000 XP 1 Select Start Settings Control Panel 2 Double click th
106. complete the following steps 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall 3 Select NI Serial and click the Change Remove button The uninstallation program removes all folders utilities and registry entries associated with the NI Serial software 4 Shutdown Windows 2000 power off your computer and physically remove the serial interfaces from your system The uninstallation program removes only items that the setup wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Uninstall the Hardware Before physically removing the serial hardware you must remove the hardware information from the Windows Me 9x Device Manager Complete the following steps to uninstall the hardware 1 Double click the System icon under Start Settings Control Panel The System Properties dialog box appears 2 Select the Device Manager tab 3 Click the View devices by type button 4 Double click the Ports COM amp LPT icon NI Serial Hardware and Software for Windows C 20 ni com Appendix C Uninstalling the Hardware and Software 5
107. connector pin descriptions table A 9 68 pin connector pin descriptions figure A 6 68 pin connector pin descriptions table A 7 connector A 2 pin descriptions table A 2 pin locations figure A 2 Declaration of Conformity F 1 default restoration 2 9 2 17 3 9 3 16 4 6 5 8 5 15 6 9 determining port associated with COMx Windows 2000 D 19 Windows Me 9x 5 11 6 14 Windows NT 5 17 6 21 determining type of serial hardware installed Windows 2000 D 19 determining version of NI Serial software installed Windows 2000 D 19 development tools for saving time 1 10 Device Manager for AT serial board ports figure 6 4 6 13 Device Manager for PCI serial board ports figure 2 4 2 13 Device Manager for PCMCIA serial card ports figure 5 4 5 10 Device Manager for PXI serial board ports figure 3 4 3 12 Device Manager for USB serial board ports figure 4 3 Device Manager ports list figure D 10 D 12 DeviceloControl 7 6 7 10 7 12 7 13 enabling disabling bias resistors with 7 10 retrieving RS 232 transceiver mode with 7 13 National Instruments Corporation Index setting RS 232 transceiver mode with 7 12 setting RS 485 transceiver mode with 7 6 diagnostic messages address test failed Windows 2000 D 3 Windows Me 9x D 8 Windows NT D 16 diagnostic utility does not show all installed ports Windows Me 9x D 8 Windows NT D 15 interrupt test failed Windows 2000 D 3 Windows Me 9x D 8 W
108. control mode 7 5 RS 485 standard B 2 features table B 1 RS 485 termination B 4 RS 485 transceiver control 7 4 four wire mode 7 4 two wire mode auto control 7 5 NI Serial Hardware and Software for Windows 1 8 two wire mode DTR controlled 7 4 two wire mode DTR with Echo 7 4 RS 485 transceiver control modes table 7 4 RS 485 transceiver mode setting with DeviceloControl 7 6 running the diagnostic test AT Windows Me 9x 6 14 AT Windows NT 6 21 PCMCIA Windows Me 9x 5 11 PCMCIA Windows NT 5 18 S SDLC protocol serial support for D 24 selecting an interface to uninstall figure AT Windows 2000 C 19 AT Windows Me 9x C 21 AT Windows NT C 23 PCI Windows 2000 C 2 D 2 PCL Windows Me 9x C 4 PCI Windows NT C 6 PCMCIA Windows 2000 C 14 PCMCIA Windows Me 9x C 16 PCMCIA Windows NT C 18 PXI Windows 2000 C 8 PXI Windows Me 9x C 10 PXI Windows NT C 11 selecting conflict free resources D 5 selecting resources for the PCMCIA card 5 16 serial communication issues B 3 bias resistors 7 8 B 5 duplex architectures B 3 RS 232 DTE vs DCE B 6 RS 485 termination B 4 serial hardware accessing from non Windows platform D 25 advanced features 7 1 ni com forcing Windows to detect Windows 2000 D 2 Windows Me 9x D 9 general programming requirements 7 1 installation AT Windows 2000 6 2 AT Windows Me 9x 6 10 AT Windows NT 6 19 PCI Windows 2000 2 2 PCI Windows Me 9x 2 10 PC
109. ct To resolve a resource conflict complete the following steps 1 Select Start Programs Administrative Tools Event Viewer to run the Event Viewer and determine which resource is in conflict 2 Change the resources of the device that caused the conflict To help you select conflict free resources you can use the Windows NT Diagnostics utility This utility displays a list of the T O port addresses interrupt levels and DMA channels that your system is currently using You can assign resources that are not listed by this utility to your device To run the Windows NT Diagnostics utility select Start Programs Administrative Tools Windows NT Diagnostics Troubleshooting Diagnostic Messages This section lists possible error messages returned by the diagnostic utility along with solutions No National Instruments Serial Port Found Ifthe No National Instruments serial port found error message appears complete the following steps Verify the hardware resources as follows a Select Start Settings Control Panel and double click the niports icon b In the Ports list select a port and click the Settings button If the serial port is missing from the Ports list reinstall the hardware and software For instructions on how to do so refer to the installation and verification chapter for your hardware platform c Inthe General Port Settings dialog box click the Resources button to view the resources for the port
110. cted and click the OK button If the Windows Default Driver option is not shown the installation continues automatically If no New Hardware Found dialog box appears refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions The serial hardware installation is complete National Instruments Corporation 2 11 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration Verify the Installation Before you verify the installation keep in mind that the serial ports built into your computer are typically named from COM1 to COM4 Windows Me 9x typically issues port names to the ports on NI Serial hardware starting with COM5 COM6 and so on If not enough resources are available to assign to all the NI serial ports the port with the higher COMXx name is not configured To verify the hardware and software installation complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Device Manager tab and then click the View devices by type button 3 Double click the Ports COM amp LPT icon to display all of the ports 4 Double click the Multi function adapters icon The PCI serial boards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child dev
111. double click the niports icon If your AT serial board is missing from the list complete the following steps 1 Make sure the hardware is installed 2 Make sure you have installed the Microsoft PnP ISA Enabler driver niports cannot recognize the AT boards without the Microsoft PnP ISA Enabler driver For more information refer to the Installing the Microsoft PnP ISA Enabler Driver section of Chapter 6 AT Serial Hardware Installation Verification and Configuration PCMCIA Boards The serial configuration utility niports contains configuration information for serial hardware it is aware of that is installed in your system To start the configuration utility select Start Settings Control Panel and double click the niports icon If serial ports are missing from this list make sure you selected resources for your PCMCIA card as described in the Select Resources for the PCMCIA Card section of Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration National Instruments Corporation D 13 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Resolving Resource Conflicts Resource conflicts occur when your system contains hardware that is configured to use the same resources as your serial interface The serial driver detects some resource conflicts when it loads When the driver detects conflicts as it loads it records an error message describing the confli
112. dows 2000 3 4 PXI Windows Me 9x 3 11 PXI Windows NT 3 18 USB Windows 2000 4 2 verifying hardware resources AT Windows Me 9x 6 13 PCMCIA Windows Me 9x 5 11 installing the PnP ISA Enabler Driver 6 18 instrument drivers F 1 interrupt request level D 4 freeing D 4 introduction 1 1 isolated four port boards AT E 12 PCI E 2 isolated two port boards AT E 10 PCI E 1 K KnowledgeBase F 1 L LabVIEW 1 10 LabWindows CVI 1 10 legacy boards resolving resource conflicts with Windows 2000 D 4 Windows Me 9x D 9 loopback tests problems with D 24 NI Serial Hardware and Software for Windows 1 6 maximum supported baud rate Windows NT D 21 Measurement Studio 1 10 missing serial port in the niports list D 12 ModBus protocol serial support for D 24 modular jack connector A 3 pin descriptions table A 3 pin locations figure A 3 multidrop network using terminating resistors figure B 5 multi function adapter class in the Device Manager figure D 23 naming National Instruments serial ports standard DOS based addresses table D 20 Windows NT D 20 National Instruments calibration certificate F 2 customer education F 1 Declaration of Conformity F 1 professional services F 1 system integration services F 1 technical support F 1 worldwide offices F 2 niports configuration utility figure AT 6 22 PCI 2 20 PCMCIA 5 19 3 19 NI VISA definition 1 11 null modem cabling in
113. dows 2000 6 8 PCI Windows 2000 2 8 PCMCIA Windows 2000 5 7 PXI Windows 2000 3 8 USB Windows 2000 4 6 USB Windows 2000 4 5 using FIFO buffers 2 8 2 16 3 8 3 15 4 6 5 7 5 14 6 8 6 17 advanced transceiver control RS 485 transceiver mode control modes table 7 4 transceiver mode control bytes table 7 6 application development NI VISA 1 11 AT serial board installation figure 6 3 6 11 6 20 bias resistor control RS 485 programmatic control 7 10 bias resistors 7 8 B 5 enabling disabling with DeviceloControl 7 10 USB Windows 2000 4 6 using in transmission line figure 7 8 bits per second definition D 23 bus utilization definition D 23 NI Serial Hardware and Software for Windows Index C cable connection A 1 calibration certificate F 2 changing communication port settings Windows 2000 2 5 3 5 4 3 5 5 6 5 Windows NT 2 20 3 19 5 18 6 22 changing resources assigned to serial interface D 21 COM port number 2 21 3 20 5 20 6 23 common questions 9 data bit framing D 25 accessing serial hardware from non Windows platform D 25 bits per second definition D 23 bus utilization definition D 23 changing resources assigned to serial interface D 21 determining number of interrupts required for a serial interface D 21 determining port associated with COMx Windows 2000 D 19 determining type of serial hardware installed Windows 2000 D 19 determining version of NI Serial soft
114. e 4 wire 2 wire DTR echo 2 wire DTR cti Use FIFO buffers pP Cancel Select lower settings to correct connection problems Select higher settings for faster performance Defaults Receive Buffer Low 1 High 14 Transmit Buffer Low 1 J High 16 di Figure 6 8 Advanced Port Settings Dialog Box The following sections describe the advanced settings options Transceiver Mode The transceiver mode selection is available by clicking the Advanced button on the Port Settings tab It shows the transceiver mode in use and applies only to AT 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers The FIFO buffer control is available by clicking the Advanced button on the Port Settings tab FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The receiver FIFO trigger denotes the number of characters received in the FIFO before the PC is interrupted to read the data The transmit FIFO trigger denotes the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data Consider the following points when selecting FIFO settings e You can select larger FIFO settings to reduce the number of interrupts and therefore minimize system overhead e If transfer rates are high you can lower receive FIFO settings to prevent overrun erro
115. e If Windows 2000 did not display the Found New Hardware Wizard it did not detect your hardware To solve this problem complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Selectthe Hardware tab and click the Device Manager button Double click the Multi function adapters icon 4 From the Multi function adapters list right click the National Instruments interface that was not detected as shown in Figure D 1 This example shows a PCI interface i Device Manager nl Action amp m amp 2 3 Mice and other pointing devices Monitors lt Y Multifunction adapters lt PCI 232 8 Multi function Parent PCI 485 4 Isolated Multi Function Parent Big Network adapters Disable EF Ports COM amp LPT RJ Communications Port COM3 E N I PCI 232 8 Communications Port 1 COM36 Properties E N I PCI 232 8 Communications Port 2 COM3 N I PCI 232 8 Communications Port 3 COM33 wo N I PCI 232 8 Communications Port 4 COM32 K d N I PCI 232 8 Communications Port 5 COM11 E N I PCI 232 8 Communications Port 6 COM10 E N I PCI 232 8 Communications Port 7 COM6 7 N I PCI 232 8 Communications Port 8 5 wv N I 485 4 Isolated Communications Port 1 COM159 PCI 485 4 Isolated Communications Port 2 COM158 485 4 Isolated Communications Port 3 COM157 1 PCI 485 4 Isol
116. e Add Remove Programs icon The Add Remove Programs dialog box appears 3 Click the Add New Programs button and then the CD or Floppy button 4 When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button 5 When prompted click the Finish button to install the program files from the CD 6 The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To exit the setup wizard at any time click the Cancel button 7 Ifyou need to install your hardware or if this is your first time to install the NI Serial software for Windows 2000 XP skip to the next section Install the Hardware Otherwise continue to step 8 National Instruments Corporation 3 1 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration Install the Hardware If your hardware is already installed restart Windows 2000 XP Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish When you complete the wizard continue to the Verify the Installation section If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions IN Caution Before you remove your board from the package touch the antist
117. e Installation To verify the hardware and software installation complete the following steps 1 Determine which physical port is associated with COM as follows a Select Start Settings Control Panel and double click the niports icon A list of installed National Instruments ports with their logical COMXx names appears If your interface is not on this list refer to Appendix D Troubleshooting and Common Questions b Selectthe COM port that you want to verify and click the Settings button The General Port Settings dialog box displays the serial number of the serial hardware and the physical port number starting at 1 For all serial hardware PORTI refers to the top port PORT2 refers to the next port down and so on 2 Torun the diagnostic utility select Start Programs National Instruments Serial diagnostics The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem 3 After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections National
118. e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e If transfer rates are high you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive Buffer value is above your data sizes your system is less efficient Therefore set the Receive Buffer value below your data sizes NI Serial Hardware and Software for Windows 2 8 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration Restore Defaults To reset the fields to their default values at any time click the Restore Defaults button Windows Me 9x Install the Software Before you install your serial hardware complete the following steps to install the NI Serial software for Windows Me 9x 1 2 National Instruments Corporation Select Start Settings Control Panel Double click the Add Remove Programs icon The Add Remove Programs dialog box appears Click the Install button When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button When prompted click the Finish button to install the program files from floppy disks or CD ROM The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To exit the setup wizard at any time click the Cancel button If you need
119. e clicking on the Input Output Range control select a different Basic Configuration in the Setting based on control AT Boards Non Shared IRQ Each port on the board requires one I O window and one IRQ Input Output Range The base I O address range assigned to the port IRQ The IRQ assigned to the port NI Serial Hardware and Software for Windows 6 26 ni com Using Your Serial Hardware This chapter describes how to use the advanced features of your NI Serial hardware and lists some general programming requirements General Programming Requirements The NI Serial software is fully integrated into the standard Windows communications software NI serial ports are used like any other Windows communications COM port Windows has standard communication functions for use within either Win16 or Win32 applications When you develop your application remember that you must use the standard Windows serial communication functions or any API that uses the standard Windows serial communication functions such as NI VISA For more information about NI VISA see ni com VISA For information about Microsoft Windows serial communication functions refer to the Win32 Software Development Kit and to the Win32 Overview and Win32 Reference online help If you have LabVIEW or Measurement Studio and want to use it with your serial hardware refer to your LabVIEW or Measurement Studio documentation for information about serial I O functions
120. e mode Enabled when Always enabled DTR controlled DTR asserted with echo Two wire mode Enabled when Enabled when DTR controlled DTR asserted DTR unasserted Two wire mode Enabled when Enabled when not Auto Control transmitting data transmitting data Four Wire Mode Use the four wire mode for most full duplex systems In this mode the transmitter and receiver are always enabled This mode is the default Two Wire Mode DTR Controlled with Echo You can use this mode in half duplex systems where you need to control the transmitter programatically In the DTR with echo mode the transmitter is tri stated when the DTR signal of the UART Universal Asynchronous Receiver Transmitter is unasserted To transmit your application first must enable the transmitter by asserting DTR After the data is fully transmitted your application unasserts DTR to disable the transmitter Because the receiver is always enabled in this mode you receive packets not only from other devices but also your transmitter Thus your receiver echoes all data you transmit Two Wire Mode DTR Controlled This mode is similar to the two wire DTR with echo mode Although this mode uses the same method as the DTR with echo mode to control the transmitter the hardware automatically disables the receiver whenever NI Serial Hardware and Software for Windows 7 4 ni com Chapter 7 Using Your Serial Hardware the transmitter is enabled Thus you do not rece
121. e the niserial vxd file in the Windows system directory b Ifthe niserial vxd file is missing reinstall the hardware and software For instructions on how to do so refer to the installation and verification chapter for your hardware platform National Instruments Corporation D 7 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Diagnostic Utility Does Not Show All Installed Ports If the diagnostic utility does not show all the ports you installed complete the following steps 1 Verify the hardware resources as follows a Inthe Device Manager tab under Multi function adapters double click a serial board b Ifa serial board is missing from the Multi function adapters list reinstall the hardware and software For instructions on how to do so refer to the installation and verification chapter for your hardware platform c Click the Resources tab If the resources were assigned properly the Resources tab shows which resources are assigned to your serial ports If they are in conflict refer to the Resolving Resource Conflicts with Legacy Boards section 2 Insome versions of Windows Me 9x in the Device Manager the Driver tab shows information about the installed driver Make sure that the National Instruments serial driver is installed for the port If the serial driver is a Microsoft driver reinstall the NI Serial software For instructions on how to do so refer to t
122. echnical Support and Professional Services appendix To comment on the documentation send email to techpubs ni com 2002 2003 National Instruments Corporation All rights reserved Important Information Warranty The serial hardware is warranted against defects in materials and workmanship for a period of one year from the date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or replace equipment that proves to be defective during the warranty period This warranty includes parts and labor The media on which you receive National Instruments software are warranted not to fail to execute programming instructions due to defects in materials and workmanship for a period of 90 days from date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period National Instruments does not warrant that the operation of the software shall be uninterrupted or error free A Return Material Authorization RMA number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work National Instruments will pay the shipping costs of returning to the owner parts which are covered by warranty National Instruments beli
123. ed Digital Multipoint Systems RS 485 expands on the RS 422 standard by increasing the number of devices you can use from 10 to 32 and by working with half duplex bus architectures Unlike the RS 422 standard RS 485 addresses the issue of using multiple transmitters on the same line RS 485 defines the electrical characteristics necessary to ensure adequate signal voltages under maximum load short circuit protection RS 485 can also withstand multiple drivers driving conflicting signals at the same time NI Serial Hardware and Software for Windows B 2 ni com Appendix B Serial Port Information Serial Communication Issues This section explains some serial communication issues including duplex architectures termination methods bias resistors and types of connecting equipment Duplex Architectures Duplex refers to the means of bandwidth usage in a serial system The two common means of bi directional serial communication are full duplex and half duplex Half duplex communication involves a transmitter and a receiver connected to each end of the same wire or pair of wires Because the same transmission line both sends and receives data devices cannot send data in both directions at the same time First one device transmits over the wire s to the receiver of the second device When the first device finishes transmitting both devices switch the connections from their transmitter to their receiver or vice versa The device that was rec
124. eiving data can then transmit over the line In full duplex communication the devices use a separate wire or pair of wires for simultaneous transmission in each direction Thus the devices do not switch between transmitting and receiving In a differential serial bus such as RS 422 or RS 485 a half duplex system transmits and receives over the same twisted pair of wires Thus half duplex communication is often referred to as two wire communications Likewise full duplex communication is often referred to as four wire communications because the full duplex system uses a separate pair of wires for communication in each direction Full Duplex A typical full duplex multidrop bus architecture involves a master slave protocol Only one device the master can control access to the bus All other devices are slaves Slave devices must wait for the master to give them access to the bus In a typical full duplex system one transmission line connects the bus master transmitter to all of the slave receivers A second transmission line connects all of the slave transmitters to the bus master receiver Because each transmission line has two separate wires a full duplex system is often referred to as a four wire system Figure B 1 shows a typical full duplex system National Instruments Corporation B 3 NI Serial Hardware and Software for Windows Appendix B Serial Port Information Slave 1 Slave 2 Slave n Y A an AN MASTER
125. environment Ambient temperature 0 to 55 C Relative humidity 10 to 90 noncondensing Storage environment Ambient temperature 40 to 85 C Relative humidity 5 to 9596 noncondensing EMI esee ee FCC Class A Verified 1 The 16 port PCI serial boards require a breakout box which is included in your kit to separate the 100 position connector to 16 DB 9 connectors NI Serial Hardware and Software for Windows E 6 ni com Appendix E Specifications Software Characteristics Maximum serial transfer rate RS 485 italie e 460 800 bps 232 dado IRE E 115 200 bps USB Serial Hardware One Port Hardware Dimensions uci tt teri 3 8 by 3 7 by 1 6 cm 1 49 by 1 44 by 0 61 in Case material eei PVC Weight USB 232 ceno i 121 g 0 27 Ib USB 485 seni esee eee 118 g 0 26 Ib connector eee DB 9 USB Captive cable with USB series A plug Power requirement from USB channel USB 485 175 mA typical 500 mA maximum USB 232 5 100 mA typical 200 mA maximum Two and Four Port Hardware Dimensions eee ie 21 0 by 12 4 by 3 7 cm 8 25 by 4 89 by 1 44 in Case material rece Hard plastic with metal baseplate Weight ete rete 375 g 0 83 Ib 1 Actual speed may vary considera
126. er to Chapter 7 Using Your Serial Hardware National Instruments Corporation B 7 NI Serial Hardware and Software for Windows Appendix B Serial Port Information Table B 2 lists the signals in DTE and DCE modes Table B 2 USB 232 DTE and DCE Modes Pin DTE Mode DCE Mode 1 DCD DCD 2 RXD TXD 3 TXD RXD 4 DTR DSR 5 GND GND 6 DSR DTR 7 RTS CTS 8 CTS RTS 9 RI RI NI Serial Hardware and Software for Windows B 8 ni com Uninstalling the Hardware and Software This appendix describes how to uninstall your serial hardware and the NI Serial software To begin your uninstallation see the section of this appendix containing instructions for your hardware platform and operating system PCP Hard Ware aite rte ree e cR ER C 2 Windows 2000 2 t red skated ra eH E nde C 2 Windows Me x iic eite cette eren etg eret ee ea C 3 Windows T SER EHI 5 PX Hard Ware aic nere ie toe rb e e ds C 7 Windows 2000 ette ener eer ee RE C 7 Windows Me 9xX eer ic tin tee eite C 9 Windows NT ee rrt ertt etae ERR E EEUU ATE C 11 USB Ha rdware dieit terere teret bee n eine C 12 PCMCIA Hardware a 13 Windows 2000 t ith vo 13 Windows Me Ox iste tette irte xt OR EIER C 15 Mn Cp C 17 AT Hardware Ree e RE ER EE GE ee C 19 Windows 20
127. erial Binary Data Interchange e BIA RS 422 A Standard Electrical Characteristics of Balanced Voltage Digital Interface Circuits e BEIA 485 Standard Standard for Electrical Characteristics of Generators and Receivers for Use in Balanced Digital Multipoint Systems e Microsoft Win32 Software Developer Kit Online Documentation for Win32 Overviews Win32 Reference Microsoft Programmer s Guide to Windows 98 95 and Microsoft Windows NT System Guide Microsoft Corporation NI Serial Hardware and Software for Windows X ni com Introduction This chapter explains how to use this manual lists what you need to get started and optional equipment you can order and briefly describes the NI Serial hardware and software How to Use this Manual Chapter 1 Chapters 2 3 4 5 or 6 Gather What You Need to Get Started Install the NI Serial Software Install the NI Serial Hardware Chapter 7 4 the Installation Troubleshooting Appendix D the Serial Port T About Advanced Product Features Review Programming Requirements Write Application Program National Instruments Corporation 1 1 NI Serial Hardware and Software for Windows Chapter 1 Introduction What You Need to Get Started Before you install your serial hardware and the NI Serial software make sure you have all of the following items Windows 2000
128. ettings Control Panel and double click niports A list showing installed National Instruments ports with their logical COMx names appears If your interface is not on the list refer to Appendix D Troubleshooting and Common Questions Select the COM port you want and click the Settings button to display the General Port Settings dialog box for that port This dialog box displays the physical port number starting at 1 When you have finished verifying the driver installation and physical port proceed to the next section Run the Diagnostic Test National Instruments Corporation 5 17 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Run the Diagnostic Test To verify and test the installation run the diagnostic program that came with your NI Serial software The diagnostic program verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly To run the test select the diagnostics item under Start Programs National Instruments Serial If the diagnostic test completes with no failures your serial hardware and software are installed properly If it fails refer to Appendix D Troubleshooting and Common Questions for troubleshooting instructions After you verify the hardware and software installati
129. ettings tab you can change any of the settings by clicking the arrow button to the right of a field When you click the arrow button a list of valid values for that field appears and you can select the desired setting from the list Figure 2 7 shows the Port Settings tab N I PCI 232 4 Communications Port COM7 Properties KJ General Port Settings Driver Resources Serial Number AS846B 1 Bits per second Data bits e Parity None x Stop bits hn n Elow control Xon xot Advanced Restore Defaults Cancel Figure 2 7 Port Settings Tab National Instruments Corporation 2 15 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration Advanced Port Settings To view or change the advanced port settings click the Advanced button Figure 2 8 shows the Advanced Port Settings dialog box Advanced Port Settings x Transceiver Mode 4 wire 4 wire 2 wire DTR echo OK 2 wire ctrl 4 Use FIFO buffers Cancel Select lower settings to correct connection problems t Select higher settings for faster performance Defaults Receive Buffer Low 1 High 14 Transmit Buffer Low 1 High 16 Figure 2 8 Advanced Port Settings Dialog Box The following sections describe the advanced port setting options
130. eves that the information in this document is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typographical errors exist National Instruments reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should consult National Instruments if errors are suspected In no event shall National Instruments be liable for any damages arising out of or related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN NATIONAL INSTRUMENTS MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA PROFITS USE OF PRODUCTS OR INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF This limitation of the liability of National Instruments will apply regardless of the form of action whether in contract or tort including negligence Any action against National Instruments must be brought within one year after the cause of action accrues National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control The warranty provided here
131. fer to Table D 3 for operating system support for NI Serial hardware Table D 3 NI Serial Hardware Operating System Support Operating System E i 2 a z z EX ER 5 s ES ES ES s E m a EE a 3 a a a 5 gt E B E 5 E BE E 25 Bus 2 2 2 2 2 2 A ae USB e e Ethernet PXI PCI PCMCIA 4 AT e NI VISA Support Native OS Support Win32 or Linux National Instruments Corporation D 25 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions How many serial ports can I have on my machine Refer to Table D 4 to determine how many serial ports are supported under each operating system Table D 4 Maximum Number of COM Ports Operating Maximum Number of Maximum Number System COM Ports Plug In of COM Ports USB Windows 256 256 2000 XP Windows NT 99 Windows Me 99 Windows 98 99 Windows 95 99 Can I use USB serial hardware Ethernet serial hardware and plug in serial hardware in the same computer at the same time As long as your operating system supports all your NI Serial hardware you can mix types different serial interfaces in your computer All NI Serial hardware and software is designed and tested for interoperability NI Ser
132. from the Windows Me 9x Device Manager as described in the previous section You do not need to shut down Windows Me 9x before uninstalling the software Complete the following steps to remove the NI Serial software 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs Properties dialog box appears This dialog box lists the software available for removal 3 Select the serial software you want to remove and click the Add Remove button The uninstall program runs and removes all folders programs VxDs DLLs and registry entries associated with the NI Serial software 4 Shutdown Windows Me 9x power off your computer and physically remove the serial interfaces from your system To reinstall the hardware and software refer to Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Uninstall the Hardware Before physically removing the serial hardware you must remove the hardware information from the Windows NT Control Panel Complete the following steps to uninstall the hardware 1 Double click the niports icon under Start Settings Control Panel 2 Select the port to remove from the list of ports as shown in Figure C 12 NI Serial Hardware and Software for Windows C 22 ni com Appendix C Uninstalling the Hardware and Software National Instruments Ports x Settings
133. g resources for your port card refer to the Resource Settings section After you have selected the resources for all ports choose to restart the computer when the system prompts you The serial hardware installation is now complete NI Serial Hardware and Software for Windows 6 20 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration Verify the Installation Determine Which Physical Port Is Associated with COMx Select Start Settings Control Panel and double click niports A list showing installed National Instruments ports with their logical COMx names appears If your interface is not on the list refer to Appendix D Troubleshooting and Common Questions Select the COM port you want and click the Settings button to display the General Port Settings dialog box for that port This dialog box displays the serial number of the serial hardware and the physical port number starting at 1 On all serial hardware PORT 1 refers to the top port PORT2 refers to the next port down and so on When you have finished verifying the driver installation and physical port proceed to the next section Run the Diagnostic Test Run the Diagnostic Test To verify and test the installation run the diagnostic program that came with your NI Serial software The diagnostic program verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your
134. g sections describe the advanced settings options Transceiver Mode This field shows the transceiver mode in use and applies only to PCMCIA 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e ftransfer rates are high you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive Buffer value is above your data sizes your system is less efficient Therefore set the Receive Buffer value below your data sizes National Instruments Corporation 5 7 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Restore Defaults To reset the fields to their default values at any time click the Restore Defaults button Windows Me 9x Install the Sof
135. guides you through the necessary steps to install the NI Serial software To exit the setup wizard at any time click the Cancel button 4 1 NI Serial Hardware and Software for Windows Chapter 4 USB Serial Hardware Installation Verification and Configuration Install the Hardware Note If you are installing a USB 485 2 or USB 485 4 you might need to adjust the value of the bias resistors depending on your application For more information refer to Chapter 7 Using Your Serial Hardware To install your USB serial hardware complete the following steps 1 2 3 Install the software If you are installing a USB 485 4 connect the external power supply Connect the USB connector from the USB hardware to an available USB port on your computer or USB hub If your computer is not already on turn it on and start Windows 2000 XP Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard If necessary complete the wizard by clicking Next in each window and then Finish If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions The serial hardware installation is complete Continue to the next section Verify the Installation Verify the Installation To verify the hardware and software installation complete the following steps 1 Select Start Settings Control P
136. hapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Select Resources for the PCMCIA Card Complete the following steps to select resources for your PCMCIA card 1 2 3 Select Start Settings Control Panel Double click the niports icon Select the PCMCIA card you just installed from the Add a New PCMCIA Card list and click the Add button Follow any onscreen instructions In the Resource Configuration dialog box select nonconflicting base I O address and IRQ settings for your port card and click OK For more information on selecting resources for your port card refer to the Resource Settings section Exit niports Install the PCMCIA Serial Hardware Complete the following steps to install the PCMCIA 232 or PCMCIA 485 in your computer 1 2 3 Shut down the computer Insert the card into a free PC Card PCMCIA socket the same way you insert a disk into a floppy drive The card has no jumpers or switches to set Power on the computer and start Windows NT Figure 5 9 shows how to insert a PCMCIA serial card and how to connect the cable NI Serial Hardware and Software for Windows 5 16 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration 1 PCMCIA Socket 2 PCMCIA Serial Cable Figure 5 9 Inserting a PCMCIA Serial Card Verify the Installation Determine Which Physical Port Is Associated with COMx Select Start S
137. he installation and verification chapter for your hardware platform 3 Physically make sure the correct number of boards ports are installed Address Test Failed If the address test failed Interrupt test cannot be performed error message appears you might have an address conflict with legacy boards in your system To solve this problem change the base addresses assigned to your legacy boards and refer to the Resolving Resource Conflicts with Legacy Boards section Interrupt Test Failed Ifthe Interrupt test failed error message appears you might have an IRQ conflict with legacy boards in your system To solve this problem change the IRQ level assigned to your legacy boards and refer to the next section Resolving Resource Conflicts with Legacy Boards NI Serial Hardware and Software for Windows D 8 ni com Appendix D Troubleshooting and Common Questions Resolving Resource Conflicts with Legacy Boards Resource conflicts typically occur if your system contains legacy boards that use resources that are not reserved properly If a resource conflict exists write down the resource that caused the conflict and refer to the Microsoft Windows Me 9x user guide for instructions on how to use the Device Manager to reserve I O and IRQ resources for legacy boards Forcing Windows to Detect Your Hardware PCI and PXI Hardware If Windows Me 9x did not display the New Hardware Found dialog box it did not detect your hardware To solve this
138. her settings for faster performance Receive Buffer Low 8 Transmit Buffer Low 8 OK Cancel Defaults Hr J High 60 60 High 56 55 COM Port Number comis9 7 Transceiver Mode 4 Wire 4 Wire 2 Wire Controlled With Echo 2 Wire Controlled 2 Wire T Ridy Auto Figure 3 4 Advanced Settings Dialog Box The following sections describe the advanced settings options Transceiver Mode This field shows the transceiver mode in use and applies only to RS 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e If transfer rates are high you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive Buffer value is above your data sizes your system is
139. i com
140. ial Hardware and Software for Windows D 26 ni com Specifications This appendix describes the characteristics of the serial hardware the NI Serial software along with the recommended operating conditions PCI Serial Hardware Nonisolated Two Port Boards Dimensions rece 10 67 by 14 22 cm 4 2 by 5 6 in connector eee DB 9 Power requirement from PCI channel PCI 485 2 HSV DC actes 350 mA typical 750 mA maximum PCI 232 2 35 VDGi secte 50 mA typical 100 mA maximum x12 VDC vi bene 20 mA typical 200 mA maximum Isolated Two Port Boards Dimensions 10 67 by 14 22 cm 4 2 by 5 6 in 9 Isolation voltage From port to 2 000 V 60 s From any port to host computer 2 000 V 60 s National Instruments Corporation E 1 NI Serial Hardware and Software for Windows Appendix E Specifications Power requirement from PCI channel PCI 485 2 O VBOC idees 800 mA typical 1 300 mA maximum PCI 232 2 45 400 mA typical 650 mA maximum Nonisolated Four Port Boards Dimensions erede 10 67 by 17 27 cm 4 2 by 6 8 in I O connector sss 10 position modular jack Power requirement from PCI channel PCI 485 4 15 VDC itii 700 mA typical 1 300 mA maximum PCI 232 4 EDV DC a cree he 70 mA typical 150 mA maximum 12 VDC eg hee deae 40 mA typica
141. ication Port Settings The serial configuration utility is fully integrated into the Windows Me 9x Device Manager You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps 1 Select Start Settings Control Panel and double click the System icon Click the Device Manager tab and then click the View devices by type button Double click the Ports COM amp LPT icon 5 Note If you want your serial ports to use COM1 COM2 COM3 refer to the Common Questions section of Appendix D Troubleshooting and Common Questions 4 National Instruments Corporation Double click the port you want to configure and refer to the following instructions e view the hardware resources assigned to the serial port click the Resources tab e view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab e change the RS 485 transceiver mode or to enable or disable the FIFOs on the serial hardware in the Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab 3 13 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration S Note Transceiver modes apply to RS 485 interfaces only For more inform
142. ice is listed as a port under the Ports COM amp LPT icon Figure 2 6 shows the Device Manager tab for serial hardware that is installed properly NI Serial Hardware and Software for Windows 2 12 ni com National Instruments Corporation Chapter 2 PCI Serial Hardware Installation Verification and Configuration System Properties HEI General Device Manager Hardware Profiles Performance View devices by type View devices by connection F Keyboard Modem UN Monitor A Mouse Exp Multifunction adapters lt gt N I PCI 232 4 Multifunction Parent E Network adapters 9 Other devices PCMCIA socket 5 Ports COM amp LPT E Communications Port COM1 wo N I PCI 232 4 Communications Port COM10 E N I PCI 232 4 Communications Port COM R N I PCI 232 4 Communications Port COM8 F N I PCI 232 4 Communications Port oy Printer Port LPT2 c AB ee Properties Refresh Remove Print 1 Ed E EH EH H A m Close Cancel Figure 2 6 Device Manager Tab for PCI Serial Board Ports Verify the hardware resources as follows a In the Device Manager tab under Multi function adapters double click a serial board Click the Resources tab If the resources were assigned properly the Resources tab shows which resources are assigned to your serial ports Repeat steps 5a and 5b until you have verified the resources for each
143. ick the Multi function adapters icon The PCMCIA serial cards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon National Instruments Corporation 5 8 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Figure 5 2 shows the Device Manager tab for serial hardware that is installed properly 21015 Action View 1 E My Computer Computer amp Disk drives Display adapters 431 DVD CD ROM drives Sy Floppy disk controllers 9 9 Floppy disk drives H S IDE ATA ATAPI controllers 591 8 Keyboards a Mice and other pointing devices e Monitors lt Multifunction adapters x PCMCIA 232 4 Multi Function Parent Bg Network adapters E PCMCIA adapters oy Ports COM amp LPT J Communications Port COM3 E d N I PCMCIA 232 4 Communications Port 1 COMS F N I PCMCIA 232 4 Communications Port 2 COM6 E N I PCMCIA 232 4 Communications Port 3 COM E N I PCMCIA 232 4 Communications Port 4 COM8 F Printer Port LPT1 9 Sound video and game controllers H A Ej Figure 5 2 Device Manager for PCMCIA Serial Card Ports 5 Verify the hardware
144. ies window that appears select the Device Manager tab and click the View devices by type button at the top of the page If necessary double click the Ports COM amp LPT icon to view all of the ports The shared IRQ AT serial boards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon If you have installed one of these interfaces double click the Multi function adapters icon as well as the Ports COM amp LPT icon to look at the ports resources To modify the hardware resources double click the Multi Function adapters icon If a circled exclamation point appears through the port icon the serial port is not installed properly A problem with the port may have occurred because Windows Me 9x could not acquire resources for the port or because an interrupt request resource conflict exists If no circled exclamation point appears the serial hardware is installed correctly Figure 6 6 shows an example of NI Serial hardware that is installed properly NI Serial Hardware and Software for Windows 6 12 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration System Properties 21 x General Device Manager Hardware Profiles Performance View devices by type View devices by connection Hard disk controllers
145. ilable in two different versions e Shared IRQ All ports on the board share the same IRQ e Isolated All ports on the board are isolated and share the same IRQ Additionally the AT serial boards are available in a two port version AT 232 2 and AT 485 2 or a four port version AT 232 4 and AT 485 4 The two port versions use DB 9 connectors The four port versions use 10 position modular jacks to provide all four connections on a single back panel Optional cable accessories convert the 10 position modular jacks to either DB 9 or DB 25 connectors with standard pinouts Throughout this manual references to AT serial boards generally refer to all versions of the boards The isolated AT 232 and AT 485 boards are designed for applications in harsh environments Isolated ports provide reliable communication in situations involving ground loops from different ground levels or high common mode voltage induced on the lines in noisy environments The nonisolated ports may not provide reliable communication in those situations The isolation between each communication port and the host PC ensures safe operation of the PC and the devices connected to other ports on the same board in case of accidental high voltages on communication lines The AT 485 boards support four hardware transceiver control modes for reliable communication with two and four wire devices For more information about transceiver control modes refer to Chapter 7 Using Your Seri
146. in does not cover damages defects malfunctions or service failures caused by owner s failure to follow the National Instruments installation operation or maintenance instructions owner s modification of the product owner s abuse misuse or negligent acts and power failure or surges fire flood accident actions of third parties or other events outside reasonable control Copyright Under the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation Trademarks ComponentWorks LabVIEW Measurement Studio National Instruments ni ccom and NI VISA are trademarks of National Instruments Corporation Product and company names mentioned herein are trademarks or trade names of their respective companies Patents For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS 1 NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN ANY LIFE SUPPORT SYSTEMS WHOSE
147. indows NT D 16 no National Instruments serial port found Windows 2000 D 3 Windows Me 9x D 7 Windows NT D 14 troubleshooting Windows 2000 D 3 Windows Me 9x D 7 Windows NT D 14 diagnostic resources F 1 diagnostic test failure Windows 2000 D 19 disabling bias resistors with DeviceloControl 7 10 documentation online library F 1 DOS based addresses table D 20 drivers instrument F 1 software F 1 DTE to DCE interface B 6 straight through cabling in figure B 6 DTE to DTE interface B 7 null modem cabling in figure B 7 NI Serial Hardware and Software for Windows Index duplex architectures B 3 full duplex B 3 half duplex B 4 E eight port boards specifications PCI E 3 PXI E 5 enabling bias resistors with DeviceloControl 7 10 environmental characteristics AT E 12 PCI E 4 E 8 PXI E 6 example code F 1 F FIFO buffer size 2 22 3 21 5 21 6 24 FIFO buffers 2 8 2 16 3 8 3 15 4 6 5 7 5 14 6 8 6 17 FIFO enabled 2 21 3 20 5 21 6 23 FIFO buffer size 2 22 3 21 5 21 6 24 forcing Windows to detect hardware Windows 2000 D 2 Windows Me 9x D 9 four port boards connecting cables to figure A 5 isolated four port boards AT E 12 PCI E 2 specifications AT E 11 PCI E 2 PXI E 5 USB E 7 four wire mode 7 4 freeing an interrupt request level D 4 frequently asked questions F 1 NI Serial Hardware and Software for Windows l 4 full duplex B 3 full duplex system figure
148. information To do so complete the following steps l Loginas Administrator oras a user who has Administrator privileges 2 Select Start Settings Control Panel and double click the niports icon From the Ports list select the port of the board you want to uninstall as shown in Figure C 6 National Instruments Ports x Settings Delete PXI 8422 Isolated R5 232 4 Ports PXI 8422 Isolated R5 232 4 Ports P q 8422 Isolated R5 232 4 Ports COMS P 4 8422 Isolated H5 232 4 Ports r Add a New PCMCIA card PCMCIA 485 Add Figure C 6 Selecting an Interface to Uninstall 3 Click the Delete button National Instruments Corporation C 11 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 4 Repeat steps 2 and 3 until you have removed every PXI serial port that you want to uninstall Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software complete the following steps 1 2 Select Start Settings Control Panel Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall Select the NI Serial software you want to uninstall and click the Add Remove button The uninstal
149. interrupted to read the data The transmit FIFO trigger denotes the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data Consider the following points when selecting FIFO settings e You can select larger FIFO settings to reduce the number of interrupts and therefore minimize system overhead e Iftransfer rates are high you can lower receive FIFO settings to reduce the number of interrupts and therefore prevent overrun errors due to interrupt latency e f data transfer sizes are small selecting receive FIFO settings just above data sizes can reduce efficiency so select lower settings Resources Click the Resources button to display the resource configuration dialog box for the port For more information on resource configuration refer to the next section Resource Settings National Instruments Corporation 5 21 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Resource Settings The following sections explain the resource configuration options for each serial interface PCMCIA 232 PCMCIA 485 PCMCIA 232 4 Figure 5 12 shows the resource configuration dialog box for a PCMCIA 485 The PCMCIA 232 and PCMCIA 232 4 dialog boxes are similar PCMCIA Port Resource Configuration x em G2 N I PCMCIA 485 Base 1 0 Address 100 Length of I 0 Window 8 Bytes IRQ Figure 5 12 Re
150. ion 5 23 NI Serial Hardware and Software for Windows AT Serial Hardware Installation Verification and Configuration This chapter describes how to install the NI Serial software and AT serial hardware and how to verify the installation It also describes how to view or change the communication port settings To begin your installation see the section of this chapter containing instructions for your operating system Windows 2000 XP Windows Me 9x or Windows NT Windows 2000 XP Install the Software Before you install your serial hardware complete the following steps to install the NI Serial software for Windows 2000 XP 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs appears 3 Click the Add New Programs button and then the CD or Floppy button 4 When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button 5 When prompted click the Finish button to install the program files from the CD 6 The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To exit the setup wizard at any time click the Cancel button 7 Ifyou need to install your hardware or if this is your first time to install the NI Serial software for Windows 2000 XP skip to the next section Install the Hardware Otherwise continue to step 8 8 Ifyour hardware is already installed
151. ion Modular Jack Pin Descriptions 10 Position Modular Jack Pin 232 Signal 485 Signal 10 DCD GND 9 RXD CTS HSI 8 TXD RTS HSO 7 DTR RXD 6 GND RXD 5 DSR CTS HSI National Instruments Corporation A 3 NI Serial Hardware and Software for Windows Connector Descriptions Table A 2 10 Position Modular Jack Pin Descriptions Continued 10 Position Modular Jack Pin 232 Signal 485 Signal 4 RTS RTS HSO 3 CTS TXD 2 RI TXD 1 No Connect No Connect These signals are not supported by the isolated 232 ports DB 25 Connector Figure A 3 and Table A 3 give the pin locations and descriptions of the DB 25 connector which is on the optional 10 position modular jack to DB 25 cable PIN 13 PIN 1 PIN 25 PIN 14 Figure A 3 DB 25 Connector Pin Locations Table A 3 DB 25 Pin Descriptions DB 25 Pin 232 Signal 485 Signal 2 TXD RTS HSO 3 RXD CTS HSI 4 RTS RTS HSO ni com NI Serial Hardware and Software for Windows A 4 Appendix A Connector Descriptions Table A 3 DB 25 Pin Descriptions Continued DB 25 Pin 232 Signal 485 Signal 5 CTS TXD 6 DSR CTS HSI 7 GND RXD 8 DCD GND 20 DTR RXD 22 RI TXD Pins not listed in this table are No Connect These signals are not supported by the isolated 232 p
152. ion Parent 85 Network adapters E Dther devices PCMCIA socket oy Ports COM amp LPT Communications Port COM1 E N I PCI 232 4 Communications Port COM10 N I PCI 232 4 Communications Port COM N I PCI 232 4 Communications Port COM8 N I PCI 232 4 Communications Port a Printer Port LPT2 ROT rrr TEN j 1 operties Refresh Remove Print E Figure C 2 Selecting an Interface to Uninstall Click the Remove button 6 Inthe Confirm Device Removal dialog box click the OK button to remove the hardware information or click the Cancel button to cancel your request NI Serial Hardware and Software for Windows C 4 ni com Appendix C Uninstalling the Hardware and Software Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software complete the following steps 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall 3 Select the NI Serial software you want to uninstall and click the Add Remove button The uninstallation program removes all folders utilities and registry entries associated with the NI Serial software 4
153. ire 4 Wire 2 Wire Controlled With Echo 2 Wire Controlled 2 Wire T Ridy Auto Figure 6 4 Advanced Settings Dialog Box The following sections describe the advanced settings options Transceiver Mode This field shows the transceiver mode in use and applies only to AT 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e If transfer rates are high you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive Buffer value is above your data sizes your system is less efficient Therefore set the Receive Buffer value below your data sizes NI Serial Hardware and Software for Windows 6 8 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration Restore Defaults To
154. ive the packets sent from your transmitter Two Wire Mode Auto Control In this mode the serial hardware transparently enables the transmitter and receiver in a two wire system Use this mode to remove the burden of transceiver control from your application The hardware automatically enables the transmitter for each byte to be transmitted Also the hardware disables the receiver whenever the transmitter is enabled so you do not receive the packets sent from your transmitter Note When you are communicating with two wire device National Instruments recommends that you use the two wire Auto Control mode Because this mode handles the transmitter receiver enabling for a two wire connection in your hardware it reduces the software overhead required to perform this operation in your application program For more information about serial communication in two or four wire modes refer to the Serial Communication Issues section of Appendix B Serial Port Information Setting the RS 485 Transceiver Control Mode Windows 2000 XP To set the transceiver control mode use the Windows 2000 XP Device Manager For instructions on how to use the Device Manager refer to the chapter with installation instructions for your hardware platform The mode you select in the Device Manager is automatically configured when you open a port on a serial interface Windows Me 9x To set the transceiver control mode use the Windows Me 9x Device Manager
155. l 400 mA maximum Isolated Four Port Boards Dimensions 10 67 by 17 27 cm 4 2 by 6 8 in VO connector sees 10 position modular jack Isolation voltage From port to port 2 000 V 60 s From any port to host computer 2 000 V 60 s The four port PCI serial boards require a cable to convert the 10 position modular jack to either DB 9 or DB 25 connectors NI Serial Hardware and Software for Windows E 2 ni com Appendix E Specifications Power requirement from PCI channel PCI 485 4 asennad 1 000 mA typical 1 500 mA maximum PCI 232 4 tS VDC ue 500 mA typical 750 mA maximum Eight Port Boards Dimensions reta 10 67 by14 48 cm 4 2 by 5 7 in I O connector sse 68 position SCSI type connector Power requirement from PCI channel PCI 485 8 1 100 mA typical 2 000 mA maximum PCI 232 8 FS 100 mA typical 180 mA maximum x12 VDC vc iecur 80 mA typical 800 mA maximum 16 Port Boards DIMENSIONS 10 67 by17 52 4 2 by 6 9 in connector sese 100 position SCSI type connector Power requirement from PCI channel PCI 232 16 T3 250 mA typical 500 mA maximum 1 The eight port PCI serial boards require a cable which is included in your kit to convert the 68 position connector to eight DB 9 connectors The 16 port P
156. lation program removes all folders utilities and registry entries associated with the NI Serial software Shut down Windows NT power off your computer and physically remove the serial interfaces from your system The uninstallation program removes only items that the setup wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 3 PXI Serial Hardware Installation Verification and Configuration USB Hardware To uninstall the USB serial hardware and NI Serial USB software complete the following steps 1 2 Select Start Settings Control Panel Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall Select NI Serial USB and click the Change Remove or Add Remove button The uninstallation program removes all folders utilities and registry entries associated with the NI Serial software Physically disconnect the USB serial hardware from your system NI Serial Hardware and Software for Windows C 12 ni com Appendix C Uninstalling the Hardware and Software The uninstall program removes all hardware configuration information and items that the setup wizard installed If you added anything to a directory that the setup wizard created
157. ld the data between the two function calls However these buffers are of finite size and thus any data transfer that exceeds the buffer size either times out blocks due to flow control or drops data This behavior is a result of the test design and does not represent a hardware or driver error Buffer sizes vary between operating systems and hardware but typically range from 4 8 KB in size Does the serial hardware have built in support for protocols such as SDLC and ModBus Because the serial hardware uses UARTs for communication protocols such as SDLC and ModBus are not supported in hardware However these protocols or their derivatives can be supported by software applications that handle the protocol translation NI Serial Hardware and Software for Windows D 24 ni com Appendix D Troubleshooting and Common Questions How do I use 9 data bit framing While NI Serial software and hardware directly supports only 5 6 7 and 8 data bits it may be possible to use the parity function to create a ninth data bit depending on your application To create and control a ninth data bit enable parity and set parity mark or parity space for a ninth bit of either a 1 or 0 respectively However you must do this every time the ninth bit changes state and thus it may not work for high throughput applications 3 Note USB Serial hardware does not support 9 data bit framing Can I use NI Serial hardware with a non Windows platform Re
158. less efficient Therefore set the Receive Buffer value below your data sizes NI Serial Hardware and Software for Windows 3 8 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration Restore Defaults To reset the fields to their default values at any time click the Restore Defaults button Windows Me 9x Install the Software Before you install your serial hardware complete the following steps to install the NI Serial software for Windows Me 9x 1 2 Install the Hardware Select Start Settings Control Panel Double click the Add Remove Programs icon The Add Remove Programs dialog box appears Click the Install button When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To go back and change values where appropriate click the Back button To exit the setup wizard at any time click the Cancel button If you need to install your hardware or if this is your first time to install the NI Serial software for Windows Me 9x skip to the next section Install the Hardware Otherwise continue to step 6 If your hardware is already installed restart Windows Me 9x Windows Me 9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes Make sure that Windows Default Driver is selected
159. llation Verification and Configuration Figure 6 12 shows the PnP Port Configuration dialog box for an AT 232 4 with shared IRQ The dialog boxes for other shared IRQ AT boards are similar PnP Port Configuration Resources Za N I AT 232 4 Resource settings Resource type Setting Input Output Range 0118 011F nput Output Range 0120 0127 Interrupt Request 0 H Setting based on Basic configuration 0000 Change Setting Use automate settras Conflicting device list Figure 6 12 PnP Port Configuration Dialog Box for the AT 232 4 Each shared IRQ AT board requires multiple base I O settings one for each port and one IRQ that is shared between the ports Input Output Range Each Input Output Range listing displays the I O address ranges assigned to the corresponding port on the board Interrupt Request The IRQ shared between the ports on the board Note The niports utility informs you if your resources conflict with the resources of any other interface in the system It does not check for conflicts with ports on the same board Make sure to assign base I O addresses that do not conflict with those assigned to another port on the same board National Instruments Corporation NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration S Note If you are unable to change the base I O address by doubl
160. lve this problem complete the following steps 1 Disconnect and reconnect the USB serial hardware from the USB port 2 Verify the installed USB serial hardware a Select Start Settings Control Panel and double click the System icon Click the Hardware tab and the Device Manager button Double click the Ports COM amp LPT icon to display a list of installed ports Verify that all USB serial communication ports are displayed without exclamation marks If some ports are missing or have exclamation marks proceed to step 3 Double click the Universal Serial Bus Controllers icon to display a list of installed USB controllers Verify that no USB Composite Devices have exclamation marks If some devices have exclamation marks proceed to step 3 Run the diagnostics utility to test the serial port communication If no problems are found you do not need to complete step 3 3 Force the driver reinstallation a In the list of installed ports right click on each USB serial port select Uninstall and click OK In the list of installed USB controllers right click each USB composite device select Uninstall and click OK 3 Note There may be USB devices other than NI USB serial hardware that use the USB composite device driver These devices may stop operation until then system scans for hardware changes There will be at least one USB composite driver for every two USB serial ports National Instruments
161. minating resistors figure B 5 throughput definition D 23 time saving development tools 1 10 training customer F 1 transceiver control RS 232 DTE DCE 7 11 transceiver mode AT Windows 2000 6 8 AT Windows Me 9x 6 17 AT Windows NT 6 23 PCI Windows 2000 2 8 PCI Windows Me 9x 2 16 PCI Windows NT 2 21 PCMCIA Windows 2000 5 7 PCMCIA Windows Me 9x 5 14 PCMCIA Windows NT 5 20 PXI Windows 2000 3 8 PXI Windows Me 9x 3 15 ni com PXI Windows NT 3 20 USB Windows 2000 4 6 transceiver mode control bytes table 7 6 transmission line using bias resistors figure 7 8 troubleshooting D 1 diagnostic messages USB D 18 Windows 2000 D 3 Windows Me 9x D 7 Windows NT D 14 forcing Windows to detect your hardware Windows 2000 D 2 Windows Me 9x D 9 freeing an interrupt request level D 4 missing serial port in the niports list D 12 resolving resource conflicts D 14 resolving resource conflicts with legacy boards Windows 2000 D 4 Windows Me 9x D 9 selecting conflict free resources D 5 troubleshooting resources F 1 two port boards specifications AT E 10 isolated two port boards AT E 10 PCI E 1 PCI E 1 PXI E 4 two wire devices A 1 connecting A 1 typical full duplex system figure B 4 typical half duplex system figure B 4 U uninstalling serial hardware AT Windows Me 9x C 20 AT Windows 2000 C 19 AT Windows NT C 22 National Instruments Corporation Index PCI Windows 20
162. more information FCC DOC Warnings This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the instructions in this manual and the CE Marking Declaration of Conformity may cause interference to radio and television reception Classification requirements are the same for the Federal Communications Commission FCC and the Canadian Department of Communications DOC Changes or modifications not expressly approved by National Instruments could void the user s authority to operate the equipment under the FCC Rules Class A Federal Communications Commission This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user is required to correct the interference at his own expense Canadian Department of Communications This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe
163. move the hardware information or click the Cancel button to cancel your request Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software complete the following steps 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall 3 Select the NI Serial software you want to uninstall and click the Add Remove button The uninstallation program removes all folders utilities and registry entries associated with the NI Serial software NI Serial Hardware and Software for Windows C 10 ni com Appendix C Uninstalling the Hardware and Software 4 Shut down Windows Me 9x power off your computer and physically remove the serial interfaces from your system The uninstallation program removes only items that the setup wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 3 PXI Serial Hardware Installation Verification and Configuration Windows NT Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove the hardware
164. multiple interfaces need learn only one API Another advantage of NI VISA is that it is an object oriented API that will easily adapt to new instrumentation interfaces as they evolve making application migration to the new interfaces easy VISA is the industry standard for developing instrument drivers Most current drivers written by National Instruments use NI VISA and support Windows Solaris 2 VxWorks Linux and Macintosh as long as the appropriate system level drivers are available for that platform NI VISA for VxWorks currently supports only the VXI and Serial interfaces National Instruments Corporation 1 11 NI Serial Hardware and Software for Windows PCI Serial Hardware Installation Verification and Configuration This chapter describes how to install the NI Serial software and PCI serial hardware and how to verify the installation It also describes how to configure the communication port settings To begin your installation see the section of this chapter containing instructions for your operating system Windows 2000 XP Windows Me 9x or Windows NT Windows 2000 XP Install the Software Before you install your serial hardware complete the following steps to install the NI Serial software for Windows 2000 XP 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears 3 Click the Add New Programs button and then the CD or Floppy
165. municate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 XP Device Manager You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps I National Instruments Corporation Select Start Settings Control Panel and double click the System icon Click the Hardware tab and then click the Device Manager button Double click the Ports COM amp LPT icon 3 5 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration 4 Double click the port you want to configure and refer to the following instructions e view the hardware resources assigned to the serial port click the Resources tab e view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab e To change the RS 485 transceiver mode or to enable or disable the FIFOs on the serial hardware in the
166. n Verification and Configuration Windows 2000 XPD etae eee e eH e ep dull ean 5 1 Install the SOFBWAre ente rer e NE eg e I rne e Tops 5 1 Install the Hardware eterne erinnere entente rette ein 5 2 Verify the Install ti n eee e ree eR ER RAE 5 3 Configure Communication Port Settings ssessseeeeeee 5 5 WindoWsMe Ox Rehd re e e pee ee testen pde 5 8 Install the SoftWare ivi eo EROR e et epe 5 8 Installthe HardWwate rotten b rs 5 8 Verify the Installation the eia arp ere ere 5 9 Configure Communication Port Settings sse 5 12 NI Serial Hardware and Software for Windows vi ni com Contents WAndOwsEN Tis seeds e ed reet sabes Oe etel ened catered sse tesis tee erae ahaa 5 15 Install the NI Serial Software eese enne 5 15 Install the PCMCIA Serial 5 16 Verify the Installation iecit er dete eite ea 5 17 Configure Communication Port Settings esee 5 18 Chapter 6 AT Serial Hardware Installation Verification and Configuration Windows 2000 XD eerte tertii tette ere re p i eet 6 1 Install the Software a2 ete AEE e PRU RO VEA 6 1 Installithe Hardware s m i rnt Per 6 2 Verify the Installation nennen rennen nennen 6 3 Configure Communication Port Settings sese 6 5 Windows RTT HY dete eae or P e E es 6 9
167. nal Instruments Corporation 6 3 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration Double click the Ports COM amp LPT icon to display all of the ports 4 Double click the Multi function adapters icon The AT serial boards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon Figure 6 2 shows the Device Manager tab for serial hardware that is installed properly SoewceMenager lis Action 12 1 Computer Computer amp Disk drives Display adapters 23 DVD CD ROM drives Floppy disk controllers amp Floppy disk drives Sy IDE ATA ATAPI controllers Keyboards TA Mice and other pointing devices 3 Monitors lt Y Multifunction adapters gt N I AT 232 4 Multi Function Parent E Network adapters PCMCIA adapters Ports COM amp LPT R Communications Port COM3 F N I AT 232 4 Shared IRQ Communications Port COM20 F N I AT 232 4 Shared IRQ Communications Port COM21 E N I AT 232 4 Shared IRQ Communications Port COM25 E N I AT 232 4 Shared IRQ Communications Port COM26 Printer Port LPT1 i Sound video and game controllers s
168. nd eight port PXI 8422 two and four port and PXI 8423 two and four port e USB 232 USB 232 2 USB 232 4 USB 485 USB 485 2 and USB 485 4 e PCMCIA 222 PCMCIA 232 2 PCMCIA 232 4 PCMCIA 485 and PCMCIA 485 2 e AT 232 2 AT 232 4 AT 485 2 and AT 485 4 boards in both isolated and nonisolated versions This manual assumes that you are already familiar with Windows 2000 NT XP Me 9x 5 AN AT serial boards bold The following conventions appear in this manual The symbol leads you through nested menu items and dialog box options to a final action The sequence File Page Setup Options directs you to pull down the File menu select the Page Setup item and select Options from the last dialog box The symbol indicates that the following text applies only to a specific product a specific operating system or a specific software version This icon denotes a note which alerts you to important information This icon denotes a caution which advises you of precautions to take to avoid injury data loss or a system crash AT serial boards refers to all port versions of the AT serial boards Bold text denotes items that you must select or click on in the software such as menu items and dialog box options Bold text also denotes parameter names National Instruments Corporation ix NI Serial Hardware and Software for Windows About This Manual italic monospace monospace bold PCI serial board
169. nd Configuration General Port Settings The following sections describe the options you can set in the General Port Settings dialog box shown in Figure 2 11 General Port Settings x zA N I PCI 232 4 Serial Number 41417D PORT 1 EOM Port Number 7 Transceiver Mode FIFO Enabled Receive FIFO size Low 8 High 56 Transmit FIFO size Low 8 High 60 Cancel Resources OK med Bee _ox_ Figure 2 11 General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the logical COMx name of the selected port Transceiver Mode The Transceiver Mode list box shows the transceiver mode in use and applies only to PCI 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware FIFO Enabled You can use the FIFO Enabled checkbox to enable or disable the FIFO buffers on the selected port FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver National Instruments Corporation 2 21 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration FIFO Buffer Size The Receive FIFO size control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit FIFO size control sets the maximum number of bytes written to the FIFO in a blo
170. ndows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions 6 9 NI Serial Hardware and Software for Windows Chapter 6 Install the Hardware 5 A AT Serial Hardware Installation Verification and Configuration This section describes how to install your AT serial hardware Note Ifyou are installing an AT 485 you might need to adjust the value of the bias resistors depending on your application For more information refer to Chapter 7 Using Your Serial Hardware Caution Before you remove your board from the package touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on your serial board To install your AT serial board complete the following steps 1 Turn off your computer Keep the computer plugged in so that it remains grounded while you install the AT serial board Remove the top or side cover of the computer Find an unused AT expansion slot in your computer Remove the corresponding expansion slot cover on the back panel of the computer Touch a metal part on your chassis to discharge any static electricity Insert the AT serial board into the slot with the serial connectors toward the opening on the back panel Make sure that you insert the board all the way into the slot The board might seem to click firmly into place even though it is only part of the way in Figure 6 5 shows how t
171. ng board descriptions Table 1 1 Board Names and Descriptions PXI Board Name Description PXI 8420 RS 232 two port RS 232 four port RS 232 eight port RS 232 16 port PXI 8421 RS 485 two port RS 485 four port RS 485 eight port PXI 8422 RS 232 two port isolated RS 232 four port isolated PXI 8423 RS 485 two port isolated RS 485 four port isolated USB Kits The serial hardware gives you a variety of solutions for serial communication The USB 232 hardware works with the RS 232 interface standard and the USB 485 hardware works with the RS 422 and RS 485 interface standards You can use the USB 232 hardware for serial communication up to distances of 50 ft You can connect the USB 485 hardware to up to 31 devices using serial cable lengths up to 4 000 ft Additionally the USB serial hardware is available in one port versions USB 232 and USB 485 two port versions USB 232 2 and USB 485 2 and four port versions USB 232 4 and USB 485 4 All versions use DB 9 connectors Throughout this manual USB serial hardware refers to all versions of the USB serial hardware The USB 232 two and four port hardware supports three hardware transceiver modes supporting both DTE and DCE configurations For more information about transceiver control modes refer to Chapter 7 Using Your Serial Hardware The USB 485 hardware supports four hardware transceiver control modes for reliable communication with two and four wi
172. nstall the Hardware To install the PCMCIA 232 or PCMCIA 485 in your computer first start Windows 2000 XP If the card is not already inserted insert it into a free PC Card PCMCIA socket the same way you insert a disk into a floppy drive The card has no jumpers or switches to set and you do not need to shut down the system before you insert it Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions Figure 5 1 shows how to insert a PCMCIA serial card and how to connect the cable NI Serial Hardware and Software for Windows 5 2 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration 1 PCMCIA Socket 2 PCMCIA Serial Cable Figure 5 1 Inserting a PCMCIA Serial Card The serial hardware installation is complete Continue to the next section Verify the Installation Verify the Installation To verify the hardware and software installation complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Hardware tab and then click the Device Manager button 3 Double click the Ports COM amp LPT icon to display all of the ports 4 Double cl
173. nt to remove and click the Add Remove button The uninstall program runs and removes all folders programs VxDs DLLs and registry entries associated with the NI Serial software 4 Remove your PCMCIA card from your computer To reinstall the hardware and software refer to Chapter 4 USB Serial Hardware Installation Verification and Configuration Windows NT Uninstall the Hardware Before physically removing the serial hardware you must remove the hardware information from the Windows NT Control Panel Complete the following steps to uninstall the hardware 1 Double click the niports icon under Start Settings Control Panel 2 Select the port to remove from the list of ports as shown in Figure C 9 National Instruments Corporation C 17 NI Serial Hardware and Software for Windows Appendix C 5 Uninstalling the Hardware and Software 3 National Instruments Ports x Ports 6 PCMCIA 232 2 ae Close Settings Delete N I PCMCIA 232 2 Add a New PCMCIA card PCMCIA 485 Add Figure C 9 Selecting an Interface to Uninstall Click the Delete button Note For two and four port PCMCIA cards all ports on the interface are removed Uninstall the Software Before uninstalling the software remove all serial port information from the Windows NT Control Panel as described in the previous section You do not need to shut down Windows NT bef
174. o install the AT serial board into an expansion slot NI Serial Hardware and Software for Windows 6 10 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration 1 PC 2 AT Socket 3 AT Serial Card Figure 6 5 AT Serial Board Installation 7 Screw the AT serial board mounting bracket to the back panel mounting rail of the computer Replace the cover 9 Turn on your computer and start Windows Me 9x 10 Watch for Windows Me 9x to display one or more New Hardware Found dialog boxes In the dialog box select Windows Default Driver and click OK If no New Hardware Found dialog box appears refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions The serial hardware installation is complete National Instruments Corporation 6 11 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration Verify the Installation When you begin to verify the installation keep in mind that the serial ports built into the computer are typically named from COMI to COMA Windows Me 9x typically issues port names to the ports on NI Serial hardware starting with COM5 COM6 and so on If not enough resources are available to assign to all the NI serial ports the port with the higher COMXx name is left unconfigured Double click the System icon in the Control Panel In the System Propert
175. o send subminiature D connector where xx is the number of pins data carrier detect data communications equipment or data circuit terminating equipment dynamic link library direct memory access data set ready data terminal equipment data terminal ready the overscore denotes that the signal is active low the means of bandwidth usage in a serial system Electronic Industries Association electromagnetic interference NI Serial Hardware and Software for Windows G 2 ni com FCC FIFO ft GND HSI HSO I O IEEE IRQ ISA Kbaud National Instruments Corporation G 3 Federal Communications Commission First In First Out feet ground handshake input handshake output Hertz input output Institute of Electrical and Electronic Engineers inches interrupt request Industry Standard Architecture kilobits per second Glossary NI Serial Hardware and Software for Windows Glossary MB PC PCI RAM RI RTS SCSI TX TXD TXRDY meters megabytes of memory personal computer Peripheral Components Interconnect random access memory ring indicator request to send receive receive data the overscore denotes that the signal is active low seconds Small Computer Systems Interface transmit transmit data the overscore denotes that the signal is active low transmit ready the overscore denotes that the signal is active low NI Serial Hardware and Software for
176. oftware installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 XP Device Manager You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps I National Instruments Corporation Select Start Settings Control Panel and double click the System icon Click the Hardware tab and then click the Device Manager button Double click the Ports COM amp LPT icon 6 5 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration 4 Double click the port you want to configure and refer to the following instructions e view the hardware resources assigned to the serial port click the Resources tab e view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab e To change the RS 485 transceiver mode or to enable or disable the FIFOs on the serial hardware in the Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab Note Transceiver modes apply to RS 485 interfaces only For more information about transceiver modes refer to Chapter 7 Using
177. olid Red Port is open but no valid signals detected USB 232 only Solid Green Port is open Blinking Yellow Port is transmitting Blinking Green Port is receiving Alternated Blinking Green Yellow Port is transmitting and receiving Blinking Red Port error framing error FIFO overrun or parity error National Instruments Corporation 7 17 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware TESTER a y NATIONAL F INSTRUMENTS READY PORTI PORT2 PORT3 PORT4 USB to RS 232 _3 232 _ 1 READY LED 2 PORT LEDs Figure 7 3 USB Serial Hardware LEDs Retrieving the Serial Interface Type 5 The NI Serial software uses programmatic control codes and the DeviceloControl Windows function for retrieving the serial interface type of a paticular serial communication port To retrieve the serial interface type complete the following steps Note You can use the header file NISerial h included on your CD to integrate this code into your program easily Add the following lines to your source code include lt winioctl h gt typedef ULONG SERIAL INTERFACE define RS485 INTERFACE 0x00 define RS232 INTERFACE 0x01 define NIS
178. on connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated with the Windows NT Control Panel You can use it to examine or modify the configuration of the serial port Complete the following steps to configure the serial port 1 Select Start Settings Control Panel and double click the niports icon A list of National Instruments ports appears as shown in Figure 5 10 NI Serial Hardware and Software for Windows 5 18 ni com National Instruments Corporation Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration National Instruments Ports Parts COME N LPCMCIA 232 2 x Close COM _N I PCMCIA Settings ELM Add a New PCMCIA card PCMCIA 485 m Add Figure 5 10 niports Configuration Utility Select the port you are interested in Click the Settings button to view or configure the port settings Refer to the next section General Port Settings for more information Click the Resources button in the General Port Settings dialog box to view or configure the resources for the port Refer to the Resource Settings section for more information Click Delete to remove hardware information about the port from Windows NT You should do this before you physically remove your PCMCIA card Click Add to configure resou
179. onfiguration Double click the System icon in the Control Panel In the System Properties window that appears select the Device Manager tab and click the View devices by type button at the top of the page If necessary double click the Ports COM amp LPT icon to view all of the ports The two port and four port PCMCIA cards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon If you have installed one of these interfaces double click the Multi function adapters icon as well as the Ports COM amp LPT icon If a circled exclamation point appears through the port icon the serial port is not installed properly A problem with the port could have occurred because Windows Me 9x could not acquire resources for the port or because an interrupt request resource conflict exists If no circled exclamation point appears the serial hardware is installed correctly Figure 5 6 shows an example of NI Serial hardware that is installed properly System Properties 21 x General Device Manager Hardware Profiles Performance View devices by type View devices by connection E Keyboard 3 Modem Monitor H A Mouse lt Multifunction adapters lt gt NI PCMCIA 232 Multifunction Parent 88 Network adapters 9 Other devices PCMCIA socket
180. ontact National Instruments Device Configuration is Corrupted or Internal Loopback Failed Ifthe device configuration may be corruptedorport failed the internal Loop Back Test error message appears an internal device error has occurred Uninstall and reinstall the NI Serial USB hardware and software disconnect all serial cables and try the diagnostic program again If this does not resolve the problem contact National Instruments NI Serial Hardware and Software for Windows D 18 ni com Appendix D Troubleshooting and Common Questions Common Questions How can I determine which type of NI Serial hardware I have installed Windows 2000 XP Me 9x 1 Select Start Settings Control Panel and double click the System icon 2 Click the Hardware tab and then click the Device Manager button or select the Device Manager tab 3 Double click the Ports COM amp LPT icon to display a list of installed ports Windows NT 1 Select Start Settings Control Panel and double click the System icon 2 Double click the niports icon How can I determine which version of the NI Serial software I have installed The Readme txt file gives the version of the software To open the file select either Start Programs National Instruments NI Serial Read Me or Start Programs National Instruments NI Serial USB Read Me What do I do if the diagnostic test fails with an error Refer to the Troubleshooting Diagnostic Messages
181. ore uninstalling the software Complete the following steps to remove the NI Serial software 1 2 Select Start Settings Control Panel Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs Properties dialog box appears This dialog box lists the software available for removal Select the serial software you want to remove and click the Add Remove button The uninstall program runs and removes all folders utilities and registry entries associated with the NI Serial software Shut down Windows NT power off your computer and remove your serial interfaces To reinstall the hardware and software refer to Chapter 4 USB Serial Hardware Installation Verification and Configuration NI Serial Hardware and Software for Windows C 18 ni com Appendix C Uninstalling the Hardware and Software AT Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove the hardware information To do so complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Select the Hardware tab and click the Device Manager button Double click the Multi function adapters icon 4 From the Multi function adapters list right click the National Instruments interface that you want to uninstall as shown in Figure C 10 8 Device Manager s 3 1501
182. ore you remove your board from the package touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on your serial board To install your PCI serial board complete the following steps 1 Turn off your computer Keep the computer plugged in so that it remains grounded while you install the PCI serial board Remove the top or side cover of the computer Find an unused PCI expansion slot in your computer Remove the corresponding expansion slot cover on the back panel of the computer Touch a metal part on your chassis to discharge any static electricity Insert the PCI serial board into the slot with the serial connectors toward the opening on the back panel Make sure that you insert the board all the way into the slot The board might seem to click firmly into place even though it is only part of the way in Figure 2 9 shows how to install the PCI serial board into an expansion slot PC 2 Serial Board 3 PCI Slot Figure 2 9 Installing the PCI Serial Board NI Serial Hardware and Software for Windows 2 18 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration 7 Screw the PCI serial board mounting bracket to the back panel mounting rail of the computer Replace the cover 9 Turn on your computer and start Windows NT The hardware installation is complete Verify th
183. ort to 3 000 V 60 s From Any Port to Host 2000 60 s Power requirement from PC AT I O channel AT 485 4 Isolated 45 VDC zai eene des 300 mA typical 360 mA maximum AT 232 4 Isolated AS Bieta aes 280 mA typical 320 mA maximum Environmental Characteristics Operating environment Ambient temperature 0 to 70 C Relative humidity 10 to 90 noncondensing Storage environment Ambient temperature 40 to 85 C Relative humidity 5 to 9596 noncondensing EMI AF sertal utet FCC Class B verified AT serial isolated FCC Class A verified Software Characteristics Maximum serial transfer rate 115 200 bps The four port isolated AT serial board requires cables which are included in your kit to convert the 10 position modular jack to a DB 9 connector Use only the type of cables provided in your kit Actual speed may vary considerably from speed shown due to system and instrumentation capabilities NI Serial Hardware and Software for Windows E 12 ni com Technical Support and Professional Services Visit the following sections of the National Instruments Web site at ni com for technical support and professional services National Instruments Corporation Support Online technical su
184. orts Figure A 4 shows how to connect the cables when you install a four port PCI serial board 10 Position Modular Jack to DB 9 Cable m lt t Serial Board o lt i NE 485 Terminator 485 Boards Only Additional Serial Cable Toh 10 Position Modular Jack to DB 25 Cable 3 Additional Serial Cable National Instruments Corporation Figure A 4 Connecting the Cables to Your Four Port PCI Serial Board 5 NI Serial Hardware and Software for Windows Appendix A Connector Descriptions 68 Pin Connector Figure A 5 and Table A 4 give the pin locations and descriptions of the 68 pin connector PIN 68 PIN 35 PIN 34 PIN 1 NI Serial Hardware and Software for Windows Figure A 5 68 Pin Connector Pin Locations A 6 ni com Appendix A Connector Descriptions Table A 4 68 Pin Connector Pin Descriptions 68 Pin Connector Port 485 232 485 D Sub 9 232 D Sub 9 1 2 3 4 5 6 7 8 Signal Connector Signal Connector 66 57 49 40 32 23 15 6 RXD 5 DCD 1 68 59 51 42 34 25 17 8 CTS 2 RXD 2 65 56 48 39 31 22 14 5 RTS 3 TXD 3 64 55 47 38 30 21 13 4 RXD 4 DTR 4 60 60 43 43 26 26 9 9 GND 1 GND 5 63 54 46 37 29 20 12 3 CTS 6 DSR 6 62 53 45 36 28 19 11 2 RTS 7 RTS 7 61 52 44 35 27 18 10 1 TXD 8 CTS 8 67 58
185. ot allow you to change the settings select the configuration that gives you a conflict free base address and interrupt level from the Setting based on list box 7 Click the OK button to save your changes PCMCIA Boards When the Device Manager indicates a conflict with another device you can usually correct the problem by manually selecting conflict free resources To do so complete the following steps 1 Select Start Settings Control Panel and double click the System icon Click the Device Manager tab and then click the View devices by type button If you have a multiport card double click the Multi function adapters icon Otherwise double click the Ports COM amp LPT icon From the expanded list double click the serial interface that you want to change Click the Resources tab Note To change the resources of ports on two port or four port PCMCIA cards from within the Device Manager you must open the Multi function adapters class and double click the name of your interface Use the Resources page to change the resources Any resource changes are automatically reflected to the child devices 6 Uncheck the Use automatic settings checkbox and click the Change Setting button If the system does not allow you to change the settings select the configuration that gives you a conflict free base address and interrupt level from the Setting based on list box Click the OK button to save your changes NI Serial Hard
186. oubleshooting and Common Questions When you have finished verifying the hardware resources proceed to the next section Determine Which Physical Port Is Associated with COMx National Instruments Corporation 6 13 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration Determine Which Physical Port Is Associated with COMx For every port of the newly installed serial interface double click the name of the serial port in the Device Manager Then click the Port Settings tab The top of this page displays the serial number of the serial hardware and the physical port number starting at 1 On all serial hardware PORTI refers to the top port PORT2 refers to the next port down and so on When you have finished verifying the driver installation and physical port proceed to the next section Run the Diagnostic Test Run the Diagnostic Test To verify and test the installation run the diagnostic program that came with your NI Serial software The diagnostic program verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly To run the test select the diagnostics item under Start Programs National Instruments Serial If the diagnostic test completes with no failures your serial hardware and software are inst
187. owing instructions e view the hardware resources assigned to the serial port click the Resources tab e view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab e To change the RS 485 transceiver mode or to enable or disable the FIFOs on the serial hardware in the Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab Note Transceiver modes apply to RS 485 interfaces only For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware 5 save your changes click the OK button To exit without saving the changes click the Cancel button Port Settings Tab In the Port Settings tab you can change any of the settings by clicking the arrow button to the right of a field When you click the arrow button a list of valid values for that field appears and you can select the desired setting from the list Figure 2 3 shows the Port Settings tab NI Serial Hardware and Software for Windows 2 6 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration N I 232 8 Communications Port 1 COM36 Properties x Driver Resowess Figure 2 3 Port Settings Tab Advanced Settings To view or change the advanced settings click the Advanced button Figure 2 4 show
188. p communication with your instruments e ComponentWorks for Visual C takes advantage of integrated C libraries and ActiveX to help you build measurement and automation applications With the ComponentWorks instrument classes you can use the IEEE 488 2 library and VISA an industry standard I O library to communicate with GPIB VXI or Serial devices using the same set of components After you install your serial hardware and the NI Serial software you can use NI VISA in LabVIEW and Measurement Studio with your serial interface If you already have one or more of these applications and want to use them with your serial interface refer to your product documentation for information about serial I O functions For ordering information contact National Instruments NI VISA is a standard I O application programming interface API for instrumentation programming In its full implementation NI VISA can control VXI VME PXI GPIB TCP IP or Serial instruments making the appropriate driver calls depending on the type of instrument being used NI VISA uses the same operations to communicate with instruments regardless of the interface type For example the NI VISA command to write an ASCII string to a message based instrument is the same whether the instrument is Serial GPIB or VXI As a result NI VISA gives you interface independence This makes it easier to switch bus interfaces and means that users who must program instruments for
189. p network using terminating resistors Slave 1 Slave 2 Slave n Rx Rx Rx b if D 21000 1000 5 Rx Figure B 3 Multidrop Network Using Terminating Resistors Figure B 4 shows a full duplex network using terminating resistors Slave 1 Slave 2 Slaven Tx Tx Y aN AN 100 Q 100 Q 5 gt i ke 2 gt 100 Q 1000 E poe VE Figure B 4 Full Duplex Network Using Terminating Resistors Bias Resistors An RS 485 transmission line enters an indeterminate state if no nodes are transmitting on it This indeterminate state can cause the receivers to receive invalid data bits from noise picked up on the cable To prevent a line from receiving these data bits the transmission line can be forced into a known state by installing two bias resistors at one node on the transmission line Doing so creates a voltage divider that forces the voltage between the differential pair to be greater than 200 mV the threshold voltage for the receiver You should install these resistors on only one node For more information about RS 485 bias resistors refer to Chapter 7 Using Your Serial Hardware National Instruments Corporation B 5 NI Serial Hardware and Software for Windows Appendix B Serial Port Information RS 232 DTE versus DCE In the RS 232 specification DTE Data Te
190. patibility EMC and product safety You can obtain the DoC for your product by visiting ni com hardref nsf F 1 NI Serial Hardware and Software for Windows Appendix F Technical Support and Professional Services e Calibration Certificate If your product supports calibration you can obtain the calibration certificate for your product at ni com calibration If you searched ni com and could not find the answers you need contact your local office or NI corporate headquarters Phone numbers for our worldwide offices are listed at the front of this manual You also can visit the Worldwide Offices section of ni com niglobal to access the branch office Web sites which provide up to date contact information support phone numbers email addresses and current events NI Serial Hardware and Software for Windows F 2 ni com Glossary Symbol Prefix Value p pico 10 12 n nano 107 u micro 10 6 m milli 10 3 k kilo 103 M mega 106 giga 10 t tera 1022 Symbols 5 degrees Q ohms percent A amperes ANSI American National Standards Institute b bits B bytes National Instruments Corporation G 1 NI Serial Hardware and Software for Windows Glossary baud bps COM CTS DB xx DCD DCE DLL DMA DSR DTE DTR duplex EIA EMI bits per second bits per second Celsius Computer Output Microform used in reference to a communication port clear t
191. ppendix D Troubleshooting and Common Questions b Selectthe COM port that you want to verify and click the Settings button The General Port Settings dialog box displays the serial number of the serial hardware and the physical port number starting at 1 For all serial hardware PORTI refers to the top port PORT2 refers to the next port down and so on 2 Torun the diagnostic utility select Start Programs National Instruments Serial diagnostics The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem 3 After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections NI Serial Hardware and Software for Windows 3 18 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows NT Control Panel You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps
192. pport resources include the following Self Help Resources For immediate answers and solutions visit our extensive library of technical support resources available in English Japanese and Spanish at ni com support These resources are available for most products at no cost to registered users and include software drivers and updates a KnowledgeBase product manuals step by step troubleshooting wizards hardware schematics and conformity documentation example code tutorials and application notes instrument drivers discussion forums a measurement glossary and so on Assisted Support Options Contact NI engineers and other measurement and automation professionals by visiting ni com ask Our online system helps you define your question and connects you to the experts by phone discussion forum or email Training Visit ni com custed for self paced tutorials videos and interactive CDs You also can register for instructor led hands on courses at locations around the world System Integration If you have time constraints limited in house technical resources or other project challenges NI Alliance Program members can help To learn more call your local NI office or visit ni com alliance Declaration of Conformity DoC A DoC is our claim of compliance with various European Council Directives using the manufacturer s self declaration of conformance This system affords the user protection for electronic com
193. quire between the two DTEs To communicate from one DTE serial port to another use a null modem cable Tn Revision D of the RS 232 specification a DCE is a Data Circuit Terminating Equipment NI Serial Hardware and Software for Windows B 6 ni com Appendix B Serial Port Information Figure B 6 shows null modem cabling in a DTE to DTE interface Rx D RxD _ Pin 2 Pin 2 DTE DTE Pin 3 xD TxD pin 3 Figure B 6 Null Modem Cabling in a DTE to DTE Interface PCI PXI PCMCIA AT RS 232 ports are DTE serial ports DCE Mode and Auto232 In addition to supporting the standard DTE transceiver mode the USB 232 two and four port hardware also supports a DCE transceiver mode In this mode the USB 232 two and four port hardware acts as a DCE interface and can generate the communication signals RI and DCD Because the Win32 API does not support the generation of these signals special IOCTL calls must be used For more information refer to Chapter 7 Using Your Serial Hardware In addition TXD is swapped with RXD CTS is swapped with RTS and DTR is swapped with DSR The USB 232 hardware can be forced into either DTE or DCE modes or an automatic detection mode Auto232 When in Auto232 mode a DTE or DCE device can be connected with either a straight through or null modem cable and the hardware automatically selects the proper transceiver mode For more information about setting these modes ref
194. r chassis before removing the board from the package Complete the following steps to install your AT serial board Turn off your computer Keep the computer plugged in so that it remains grounded while you install the AT serial board 2 Remove the top or side cover of the computer Remove the expansion slot cover on the back of the computer 4 Insert the AT serial board into an unused slot with the serial connectors sticking out of the opening on the back panel Make sure that you insert the board all the way into the slot The board may seem to click firmly into place even though it is only part of the way in Figure 6 9 shows the installation of an AT serial board National Instruments Corporation 6 19 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration PC 2 AT Socket 3 AT Serial Card Figure 6 9 AT Serial Board Installation Screw the mounting bracket of the AT serial board to the back panel rail of the computer Replace the cover and turn on your computer Windows NT displays one or more New Hardware Found dialog boxes depending on your serial hardware In each dialog box make sure that Windows Default Driver is selected and click OK The serial configuration software displays a PnP Port Configuration dialog box Correct any resource settings that may have conflicts and then click OK For more information on selectin
195. r serial board To install your PCI serial board complete the following steps 1 Turn off your computer Keep the computer plugged in so that it remains grounded while you install the PCI serial board Remove the top or side cover of the computer Find an unused PCI expansion slot in your computer Remove the corresponding expansion slot cover on the back panel of the computer Touch a metal part on your chassis to discharge any static electricity Insert the PCI serial board into the slot with the serial connectors toward the opening on the back panel Make sure that you insert the board all the way into the slot The board might seem to click firmly into place even though it is only part of the way in Figure 2 5 shows how to install the PCI serial board into an expansion slot NI Serial Hardware and Software for Windows 2 10 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration PC 2 PCI Serial Board 3 PCISIot 9 Figure 2 5 PCI Serial Board Installation Screw the PCI serial board mounting bracket to the back panel mounting rail of the computer Replace the cover Turn on your computer and start Windows Me 9x 10 Windows Me 9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes Your operating system Windows Me 9x may show the Windows Default Driver option If so make sure the Windows Default Driver is sele
196. r software can enable or disable the bias resistors programatically by making DeviceloControl calls to the serial driver Setting the RS 485 Programmically Controlled Bias Resistors with DeviceloControl The NI Serial software uses programmatic control codes and the DeviceloControl Windows function for programming the RS 485 bias resistor mode To set and retrieve the RS 485 bias resistor mode complete the following steps B Note You can use the header file NISerial h included on your CD to integrate this code into your program easily 1 Add the following lines to your source code include lt winioctl h gt typedef ULONG SERIAL RS485 BIAS define RS485 BIAS OFF 0 define RS485 BIAS ON 1 define NISERIAL SET RS485 BIAS CTL CODE FILE DEVICE SERIAL PORT 4031 METHOD BUFFERED FILE ANY ACCESS define NISERIAL GET RS485 BIAS CTL CODE FILE DEVICE SERIAL PORT 4030 METHOD BUFFERED FILE ANY ACCESS NI Serial Hardware and Software for Windows 7 10 ni com Chapter 7 Using Your Serial Hardware 2 To set the RS 485 bias resistor mode use NISERIAL SET RS485 BIAS and DeviceloControl For example to enable programmatically controlled RS 485 bias resistors use the following code SERIAL RS485 BIAS serial rs485 bias RS485 BIAS ON ULONG bytecount DeviceloControl comhandle NISERIAL SET RS485 BIAS PVOID amp serial rs485 bias Sizeof serial rs485 bias PVOID NULL 0 amp bytecount NULL 3 To retrieve
197. rces for a new PCMCIA card 5 19 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration General Port Settings This section describes the options you can set in the General Port Settings dialog box shown in Figure 5 11 General Port Settings SA ete sete fS DIETE I ance entm zi Figure 5 11 General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the COMx name of the port selected Transceiver Mode The transceiver mode selection shows the transceiver mode in use and applies only to PCMCIA 485 cards Refer to Chapter 7 Using Your Serial Hardware for more information about transceiver modes If you use two wire Auto mode FIFOs must be enabled NI Serial Hardware and Software for Windows 5 20 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration FIFO Enabled You can use the FIFO Enabled control to enable or disable the FIFO buffers on the serial port FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver FIFO Buffers The FIFO buffer control is available by clicking the Advanced button on the Port Settings tab FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The receive FIFO trigger denotes the number of characters received in the FIFO before the PC is
198. re devices For more information about transceiver control modes refer to Chapter 7 Using Your Serial Hardware In addition the USB 485 hardware supports NI Serial Hardware and Software for Windows 1 6 ni com Chapter 1 Introduction programmatic control of the bias resistors For more information refer to Chapter 7 Using Your Serial Hardware All serial hardware uses standard 16550 compatible UARTs Universal Asynchronous Receiver Transmitters for complete compatibility with standard PC COM ports The serial hardware contains FIFO First In First Out and USB buffers to reduce susceptibility to system latency for faster transmission rates Full Plug and Play compatibility allows switchless configuration and installation For more information about the serial hardware specifications and operating conditions refer to Appendix E Specifications PCMCIA Kits The serial hardware gives you a variety of solutions for serial communications The PCMCIA 232 interfaces work with the RS 232 protocols and the PCMCIA 485 interfaces work with the RS 422 and RS 485 protocols You can use the PCMCIA 232 hardware for serial communication up to distances of 50 ft You can connect the PCMCIA 485 hardware with up to 31 devices using serial cable lengths up to 4 000 ft The PCMCIA 232 is available with one two or four ports The PCMCIA 485 is available in a one port version or two port version All PCMCIA cards come with cables for each port that
199. reset the fields to their default values at any time click the Restore Defaults button Windows Me 9x Install the Software Install the NI Serial software for Windows Me 9x before you install the hardware 1 2 National Instruments Corporation Select Start Settings Control Panel Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs dialog box appears Click the Install button When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button to proceed The software installation wizard begins The wizard guides you through the necessary steps to install the NI Serial software You can go back and change values where appropriate by clicking the Back button You can exit the setup where appropriate by clicking the Cancel button If you need to install your hardware or if this is your first time to install the NI Serial software for Windows Me 9x skip to the next section Install the Hardware Otherwise continue to Step 6 If your hardware is already installed restart Windows Me 9x Windows Me 9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes but you must make sure Windows Default Driver is selected and click OK When you finish continue to the Verify the Installation section If no New Hardware Found dialog box appears refer to the Forcing Wi
200. resources as follows a Inthe Device Manager under Multi function adapters double click a serial card b Click the Resources tab If the resources were assigned properly the Resources tab shows which resources are assigned to your serial ports c Repeat steps 5a and 5b until you have verified the resources for each board 6 Optional To determine which physical port is associated with COMx note the Port 1 Port 2 etc entries next to the COM numbers For all serial hardware PORTI refers to the top port PORT2 refers to the next port down and so on 7 Torun the diagnostic utility select Start Programs National Instruments NI Serial Diagnostics NI Serial Hardware and Software for Windows 5 4 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem 8 After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The
201. rial Hardware For more information about duplex architectures refer to Appendix B Serial Port Information DB 9 Connector Figure A 1 and Table A 1 give the pin locations and descriptions of the DB 9 connector the 10 position modular jack to DB 9 cable the cable adapter for the eight port board and the DB 9 connectors to the 16 port breakout box UN PINIS PIN 9 PIN 1 PIN 6 Figure 1 DB 9 Connector Pin Locations Table A 1 DB 9 Pin Descriptions 232 Signal DB 9 Pin DTE DCE 485 Signal 1 DCD DCD GND 2 RXD TXD CTS HSI 3 TXD RXD RTS HSO 4 DTR DSR RXD 5 GND GND RXD 6 DSR DTR CTS HSI 7 RTS CTS RTS HSO NI Serial Hardware and Software for Windows A 2 ni com Appendix A Connector Descriptions Table A 1 DB 9 Pin Descriptions Continued 232 Signal DB 9 Pin DTE DCE 485 Signal 8 CTS RTS TXD 9 RI RI TXD These signals are not supported by the isolated 232 boards or ports 9 16 of the RS 232 16 port board Note DCE signals are available only on the USB 232 two and four port serial hardware Modular Jack Connector Figure A 2 and Table A 2 give the pin locations and descriptions of the 10 position modular jack le 10 1 Figure 2 10 Position Modular Jack Pin Locations Table A 2 10 Posit
202. rminal Equipment and DCE Data Communications Equipment refer to the types of equipment on either end of a serial connection In general DTE and DCE refer to computer equipment and modems respectively Because the RS 232 specification mainly involves connecting a DTE directly to a DCE and vice versa the pinouts are defined so that cabling is simple That is a cable connected a computer to a modem by wiring pin 1 to pin 1 pin 2 to pin 2 and so on This method is known as straight through cabling Figure B 5 shows straight through cabling in a DTE to DCE interface j Pin 2 P Pin 2 DCE JJ DCE DTE Pin 3 T D p Pin 3 Figure B 5 Straight Through Cabling in a DTE to DCE Interface Straight through cabling is still the standard method to connect a modem to your PC However because many applications use serial communication to connect two or more DTEs without modems the cabling becomes more complicated If two DTEs are wired together using a straight through cable one transmitter is connected to the other transmitter and one receiver is connected to the other receiver In this setup no transmissions can occur Thus these applications must use a cabling scheme that connects the transmitter on one device to the receiver on the other device and vice versa This method is known as null modem cabling because it replaces the two modems that traditional RS 232 applications would re
203. rs due to interrupt latency e f data transfer sizes are small selecting receive FIFO settings just above data sizes can reduce efficiency so select lower settings National Instruments Corporation 6 17 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration S Note If you want your serial hardware ports to use the names COMI COM2 COM3 or COMA refer to the Common Questions section of Appendix D Troubleshooting and Common Questions Windows NT Installing the Microsoft PnP ISA Enabler Driver When you install an AT board you must install the PnP ISA Enabler Driver The AT serial hardware is Plug and Play Windows NT 4 0 does not support Plug and Play In order for Windows NT to detect and install the Plug and Play hardware you must install the PnP ISA Enabler driver included on your Windows NT 4 0 CD Complete the following steps to install the driver 1 Locate the Pnpisa inf file in the Drvlib Pnpisa x86 folder on the Windows NT 4 0 CD 2 Right click the Pnpisa inf file then select Install on the menu that appears 3 Restart the computer Install the NI Serial Software Install the NI Serial software for Windows NT before you install the hardware Make sure that you have already installed the PnP ISA Enabler driver as described in the previous section 1 Log on as Administrator or as user who has Administrator privileges Select Start
204. rs to the top port PORT2 refers to the next port down and so on To run the diagnostic utility select Start Programs National Instruments NI Serial Diagnostics The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Communication Port Settings The serial configuration utility is fully integrated into the Windows 2000 XP Device Manager You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps I National Instruments Corporation Select Start Settings Control Panel and double click the System icon Click the Hardware tab and then click the Device Manager button Double click the Ports COM amp LPT icon 2 5 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration 4 Double click the port you want to configure and refer to the foll
205. rted insert it into a free PC Card PCMCIA socket the same way you insert a disk into a floppy drive The card has no jumpers or switches to set and you do not need to shut down the system before you insert it NI Serial Hardware and Software for Windows 5 8 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Windows Me 9x automatically displays one or more New Hardware Found dialog boxes when it detects and configures a PC Card If the New Hardware Found dialog box does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions Figure 5 5 shows how to insert a PCMCIA serial card and how to connect the cable 1 PCMCIA Socket 2 Serial Cable Figure 5 5 Inserting a Serial Card The serial hardware installation is complete Verify the Installation When you begin to verify the installation keep in mind that the serial ports built into the computer are typically named from COM1 to COM4 Windows Me 9x typically issues port names to the ports on NI Serial hardware starting with COM5 COM6 and so on If not enough resources are available to assign to all the NI serial ports the port with the higher name is left unconfigured National Instruments Corporation 5 9 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and C
206. run errors due to interrupt latency e f your data transfer sizes are small and your Receive FIFO size value is above your data sizes your system is less efficient Therefore set the Receive FIFO size value below your data sizes Resources To view the resource configuration dialog box for the selected port click the Resources button You cannot change these resources they are automatically assigned National Instruments Corporation 3 21 NI Serial Hardware and Software for Windows USB Serial Hardware Installation Verification and Configuration This chapter describes how to install the NI Serial software and USB serial hardware and how to verify the installation It also describes how to configure the communication port settings Install the Software Before you install your serial hardware complete the following steps to install the NI Serial USB software for Windows 2000 XP 1 2 3 National Instruments Corporation Log in as Administrator or auser with Administrator privileges Select Start Settings Control Panel Double click the Add Remove Programs icon The Add Remove Programs dialog box appears Click the Add New Programs button and then the CD or Floppy button When prompted insert the N Serial USB Software for Windows 2000 XP CD and click the Next button When prompted click the Finish button to install the program files from the CD The setup wizard begins The setup wizard
207. s To configure a serial port complete the following steps 1 Select Start Settings Control Panel and double click the System icon Click the Device Manager tab and then click the View devices by type button Double click the Ports COM amp LPT icon Note If you want your serial ports to use the names COM1 COM2 or COM4 refer to the Common Questions section of Appendix D Troubleshooting and Common Questions 4 Double click on the port you want to configure and refer to the following instructions view the hardware resources assigned to the serial port click the Resources tab e To view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab e To change the RS 485 transceiver mode or to enable or disable the FIFOs on the serial hardware in the Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab NI Serial Hardware and Software for Windows 2 14 ni com Chapter 2 PCI Serial Hardware Installation Verification and Configuration 5 Note Transceiver modes apply to RS 485 interfaces For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware 5 save your changes click the OK button To exit without saving the changes click the Cancel button Port Settings Tab In the Port S
208. s PCMCIA serial boards Platform PXI serial boards USB serial hardware Italic text denotes variables emphasis a cross reference or an introduction to a key concept This font also denotes text that is a placeholder for a word or value that you must supply Text in this font denotes text or characters that you should enter from the keyboard sections of code programming examples and syntax examples This font is also used for the proper names of disk drives paths directories programs subprograms subroutines device names functions operations variables filenames and extensions and code excerpts Bold text in this font denotes the messages and responses that the computer automatically prints to the screen This font also emphasizes lines of code that are different from the other examples PCI serial boards refers to all versions of the PCI serial boards PCMCIA serial boards refers to all versions of the PCMCIA serial boards Text in this font denotes a specific platform and indicates that the text following it applies only to that platform PXI serial boards refers to all versions of the PXI serial boards USB serial hardware refers to all versions of the USB serial hardware Related Documentation The following documents contain information that you might find helpful as you read this manual e ANSI EIA 232 D Standard Interface Between Data Terminal Equipment and Data Circuit Terminating Equipment Employing S
209. s aF Ports COM amp LPT 9 Communications Port COM3 E N I PCMCIA 232 4 Communications Port Properties RJ N I PCMCIA 232 4 Communications Por E N I PCMCIA 232 4 Communications Port 3 COM38 5 d N I PCMCIA 232 4 Communications Port 4 COM37 Printer Port LPT1 g Sound video and game controllers 1 89 8 Scan for hardware changes Figure C 7 Selecting an Interface to Uninstall Choose the Uninstall option 6 Inthe Confirm Device Removal dialog box click the OK button to remove the hardware information or click the Cancel button to cancel your request Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software complete the following steps 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall NI Serial Hardware and Software for Windows C 14 ni com 4 Appendix C Uninstalling the Hardware and Software Select NI Serial and click the Change Remove button The uninstallation program removes all folders utilities and registry entries associated with the NI Serial software Remove the PCMCIA serial interface from your system The uninstallation program removes only items that the setup
210. s the Advanced Settings dialog box National Instruments Corporation 2 7 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration Advanced Settings for COM159 E 2 Use FIFO buffers requires 16550 compatible UART OK Select lower settings to correct connection problems dd Cancel Select higher settings for faster performance Defaults Receive Buffer Low 8 J High 60 60 Transmit Buffer Low 8 High 56 56 COM Port Number comis9 Transceiver Mode 4 wire 4 Wire 2 Wire Controlled With Echo 2 Wire Controlled 2 Wire T Ridy Auto Figure 2 4 Advanced Settings Dialog Box The following sections describe the advanced settings options Transceiver Mode This field shows the RS 485 transceiver mode in use and applies only to PCI 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points
211. s were assigned properly the Resources tab shows which resources are assigned to your serial ports c Repeat steps 5a and 5b until you have verified the resources for each board 6 Optional To determine which physical port is associated with COMx complete the following steps a Inthe Device Manager tab under Ports COM amp LPT double click the serial port COM b Click the Port Settings tab to display the serial number of the serial hardware and the physical port number starting at 1 For all serial hardware PORTI refers to the top port PORT2 refers to the next port down and so on NI Serial Hardware and Software for Windows 3 12 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration To run the diagnostic utility select Start Programs National Instruments Serial diagnostics The diagnostic utility verifies that your serial driver is installed properly that the configuration of your hardware does not conflict with anything else in your system and that the serial driver can communicate with your hardware correctly If the test is successful your serial hardware and software are installed properly If the test fails refer to Appendix D Troubleshooting and Common Questions to troubleshoot the problem After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections Configure Commun
212. sceiver mode in use and applies only to RS 485 boards For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware Use FIFO Buffers FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver The Receive Buffer control sets the number of characters received in the FIFO before the PC is interrupted to read the data The Transmit Buffer control sets the maximum number of bytes written to the FIFO in a block when the PC is interrupted to write the data When you configure FIFO settings consider the following points e You can select larger FIFO buffer sizes to reduce the number of interrupts your PC receives and therefore minimize system overhead e ftransfer rates are high you can lower the Receive Buffer value to prevent overrun errors due to interrupt latency e f your data transfer sizes are small and your Receive Buffer value is above your data sizes your system is less efficient Therefore set the Receive Buffer value below your data sizes National Instruments Corporation 3 15 NI Serial Hardware and Software for Windows Chapter 3 PXI Serial Hardware Installation Verification and Configuration Restore Defaults To reset the fields to their default values at any time click the Restore Defaults button Windows NT Install the Software Before you install your serial hardware complete the following steps to install the NI Serial sof
213. section for your hardware and operating system How can I determine which port is associated with COMx To determine which physical port is associated with COMx complete the following steps Windows 2000 XP Me 9x 1 Inthe Device Manager under Ports COM amp LPT double click a serial port 2 Click the Port Settings tab to display the serial number of the serial hardware and the physical port number starting at 1 Note the Port 1 Port 2 etc entries next to the COM numbers For all serial hardware PORT refers to the top port PORT2 refers to the next port down and so on National Instruments Corporation D 19 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions Windows NT 1 Select Start Settings Control Panel and double click the niports icon A list of installed National Instruments ports with their logical COMx names appears If your interface is not on this list refer to the Missing Serial Port in the niports List section 2 Select a COM port and click the Settings button The General Port Settings dialog box displays the serial number of the serial hardware and the physical port number starting at 1 For all serial hardware PORT refers to the top port PORT refers to the next port down and so on How can I change the COM numbers of my National Instruments plug in serial ports to COM1 COM2 COMS3 COM4 Windows Me 9x To name plug in serial ports C
214. sent in both modes the final mode may be either DTE or DCE Note A valid RS 232 signal is defined as at least one valid RS 232 voltage detected on any receiver pin RXD CTS DSR RI or DCD Setting the RS 232 Transceiver Mode with DeviceloControl The NI Serial software uses programmatic control codes and the DeviceloControl Windows function for programming the RS 232 transceiver mode To set and retrieve the RS 232 transceiver mode complete the following steps Note You can use the header file NISerial h included on your CD to integrate this code into your program easily 1 Add the following lines to your source code include winioctl h define RS232 MODE DTE 0x00 define RS232 MODE DCE 0 01 define RS232 MODE AUTO 0x02 define NISERIAL SET RS232 MODE CTL CODE FILE DEVICE SERIAL PORT 4081 METHOD BUFFERED FILE ANY ACCESS define NISERIAL GET RS232 MODE CTL CODE FILE DEVICE SERIAL PORT 4080 METHOD BUFFERED FILE ANY ACCESS NI Serial Hardware and Software for Windows 7 12 ni com Chapter 7 Using Your Serial Hardware 2 set the RS 232 transceiver use NISERIAL SET RS232 MODE and DeviceloControl For example to set to Force DCE mode use the following code ULONG bytecount TRANSCEIVER MODE transceiver mode RS232 MODE DCE DeviceloControl comhandle NISERIAL SET RS232 MODE PVOID amp transceiver mode sizeof transceiver mode PVOID NULL 0 amp bytecount NULL
215. serial configuration utility is fully integrated into the Windows 2000 XP Device Manager You can use it to view or change the configuration of your serial ports To configure a serial port complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Hardware tab and then click the Device Manager button 3 Double click the Ports COM amp LPT icon 4 Double click the port you want to configure and refer to the following instructions e view the hardware resources assigned to the serial port click the Resources tab e To view or change the port settings click the Port Settings tab For more information about the settings refer to the next section Port Settings Tab e change the RS 485 transceiver mode to enable or disable the FIFOs on the serial hardware in the Port Settings tab click the Advanced button For more information about the settings refer to the next section Port Settings Tab hy Note Transceiver modes apply to RS 485 interfaces only For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware 5 your changes click the OK button To exit without saving the changes click the Cancel button National Instruments Corporation 5 5 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Port Settings Tab In the Port
216. sition modular jack to DB 9 cable included in your four port isolated PCI or AT serial board kit For more information about cable connectors see the connector descriptions in this appendix Connecting Two Wire Devices The PCI 485 USB 485 PCMCIA 485 RS 485 PXI PXI 8421 and PXI 8423 and AT 485 hardware is designed to work with either two or four wire devices If you are using a two wire device refer to the device documentation for specific wiring instructions In general half duplex networks use a single twisted pair of wires for communication in both directions so you must connect both the transmitter and the receiver at each end of the same pair of wires For example to connect an RS 485 data acquisition device to a port on your board using half duplex communication you need a single twisted pair of wires At the board connect the TXD and RXD signals pins 8 and 4 on a DB 9 connector pins 5 and 20 on a DB 25 connector together and to one wire Connect the other end of this wire to both the TXD and RXD signals on the data acquisition device Use the same method to connect the National Instruments Corporation A 1 NI Serial Hardware and Software for Windows Appendix A Connector Descriptions TXD and RXD signals pins 9 and 5 on a DB 9 connector pins 22 and 7 on a DB 25 connector to the second wire For information about setting the transceiver mode for two wire communication refer to Chapter 7 Using Your Se
217. source Configuration Dialog Box for the PCMCIA 485 Base I O Address The base I O address assigned to the port IRQ The IRQ assigned to the port Length The size in bytes of the I O window For the PCMCIA 232 and PCMCIA 485 the length is 8 the size of the I O window for one port For the PCMCIA 232 4 the length is 32 bytes the size of the I O window for four ports NI Serial Hardware and Software for Windows 5 22 ni com Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration PCMCIA 232 2 PCMCIA 485 2 These cards require two base I O settings one for each port and they share an IRQ Figure 5 13 shows the resource configuration dialog box for a PCMCIA 485 2 The PCMCIA 232 2 dialog box is similar PCMCIA Port Resource Configuration x G2 N I PCMCIA 485 2 Base 1 0 Address 2 218 Length of 1 0 Window 8 Bytes IRQ Figure 5 13 Resource Configuration Dialog Box for the PCMCIA 485 2 Base I O Address The base I O addresses assigned to the two ports IRQ The IRQ shared by the two ports Length The size of each I O window in bytes 5 Note When you select resources for PCMCIA cards use the Microsoft Windows NT diagnostics utility to make sure that the resources have not been assigned to any other device This utility displays a list of I O port addresses and IRQ levels that are currently being used in your system National Instruments Corporat
218. st IRQ button Scan through the list of IRQ settings to determine which devices are using which interrupt request levels 5 When you locate a device that you are not currently using click the Cancel button 6 Inthe Device Manager tab double click the icon for that device 7 IntheDevice usage field a checkmark appears to the left of the current configuration usually Original Configuration Current Click the checkbox to remove the checkmark 8 Click the Resources tab and make sure that Use automatic settings is unchecked 9 Repeat steps 6 through 8 for each unused device 10 Click the OK button to save your changes 11 Restart Windows Me 9x to assign resources to your serial port Then complete step 6 in the installation verification section of the chapter for your hardware platform NI Serial Hardware and Software for Windows D 4 ni com Appendix D Troubleshooting and Common Questions Selecting Conflict Free Resources PCI and PXI Boards When the Device Manager indicates a conflict with another device you can usually correct the problem by manually selecting conflict free resources To do so complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Click the Device Manager tab and then click the View devices by type button 3 Double click the Multi function adapters icon 4 From the Multi function adapters list double click the serial interface that you wan
219. stall the NI Serial software for Windows NT 1 Loginas Administrator or as a user who has Administrator privileges 2 Select Start Settings Control Panel 3 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears 4 Click the Install button 5 When prompted insert the NI Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button 6 When prompted click the Finish button to install the program files 7 The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To exit the setup wizard at any time click the Cancel button iyi Note The setup wizard backs up the Windows NT serial driver serial sys to serial bak and then overwrites serial sys You can find serial sys in the WinNT system32 drivers directory 8 If your hardware is already installed restart Windows NT and continue to the Verify the Installation section The software installation is complete Install the Hardware 5 Note If you are installing a PCI 485 you might need to adjust the value of the bias resistors depending on your application Bias resistors are not available on the eight port 485 For more information refer to Chapter 7 Using Your Serial Hardware National Instruments Corporation 2 17 NI Serial Hardware and Software for Windows Chapter 2 A PCI Serial Hardware Installation Verification and Configuration Caution Bef
220. stry entries associated with the NI Serial software 4 Shutdown Windows 2000 power off your computer and physically remove the serial interfaces from your system The uninstallation program removes only items that the setup wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 2 PCI Serial Hardware Installation Verification and Configuration Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove the hardware information To do so complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Select the Device Manager tab and click the View devices by type button 3 Double click the Multi function adapters icon National Instruments Corporation C 3 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software 4 From the Multi function adapters list select the National Instruments interface that you want to uninstall as shown in Figure 2 System Properties 21 x General Device Manager Hardware Profiles Performance View devices by type View devices by connection Keyboard Modem Monitor A Mouse B Multi function adapters gt N I PCI 232 4 Multi funct
221. system and that the serial driver can communicate with your hardware correctly To run the test select the diagnostics item under Start Programs National Instruments Serial If the diagnostic test completes with no failures your serial hardware and software are installed properly If it fails refer to Appendix D Troubleshooting and Common Questions for troubleshooting instructions After you verify the hardware and software installation connect the cables Refer to Appendix A Connector Descriptions for information about cable connections National Instruments Corporation 6 21 NI Serial Hardware and Software for Windows Chapter 6 AT Serial Hardware Installation Verification and Configuration Configure Communication Port Settings The serial configuration utility is fully integrated with the Windows NT Control Panel You can use it to examine or modify the configuration of the serial port Complete the following steps to configure the serial port 1 Select Start Settings Control Panel and double click the niports icon A list of National Instruments ports appears as shown in Figure 6 10 National Instruments Ports x Settings Delete Add a New PCMCIA card PCMCIA 485 bd Add Figure 6 10 niports Configuration Utility 2 Select the port you want to configure Click the Settings button to view or configure the port settings Refer to the next section General Por
222. t Settings for more information 4 Click the Resources button in the General Port Settings dialog box to view or configure the resources for the port Refer to the Resource Settings section for more information 5 Click Delete to remove hardware information about the port from Windows NT You should do this before you remove the serial interface from the system NI Serial Hardware and Software for Windows 6 22 ni com Chapter 6 AT Serial Hardware Installation Verification and Configuration General Port Settings This section describes the options you can set in the General Port Settings dialog box shown in Figure 6 11 General Port Settings x AT 232 4 ISA PnP Serial Number 00558800 PORT 2 COM Port Number E TranscelvEntdode d M FIFO Enabled Cancel Resources Figure 6 11 General Port Settings Dialog Box COM Port Number You can use the COM Port Number control to change the COMx name of the port selected Transceiver Mode The transceiver mode selection shows the transceiver mode in use and applies only to AT 485 boards Refer to Chapter 7 Using Your Serial Hardware for more information about transceiver modes If you use two wire Auto mode FIFOs must be enabled FIFO Enabled You can use the FIFO Enabled control to enable or disable the FIFO buffers on the serial port FIFO buffers are present on the 16550 compatible UARTs one for the transmitter and one for the receiver
223. t to change 5 Click the Resources tab 6 Uncheck the Use automatic settings checkbox and click the Change Setting button If the system does not allow you to change the settings select the configuration that gives you a conflict free base address and interrupt level from the Setting based on list box 7 Click the OK button to save your changes AT Boards When the Device Manager indicates a conflict with another device you can usually correct the problem by manually selecting conflict free resources To do so complete the following steps 1 2 3 Select Start Settings Control Panel Double click the System icon Select the Device Manager tab and click the View devices by type button at the top of the page Double click the Ports COM amp LPT icon A list of installed ports appears Double click the name of the serial port you want to change then click the Resources tab 3 Note To change the resources of ports on shared IRQ AT boards from within the Device Manager you must open the Multi function adapters class and double click the name of your interface Use the Resources page to change the resources Any resource changes are automatically reflected to the child devices National Instruments Corporation D 5 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions 6 Uncheck the Use automatic settings checkbox and click the Change Setting button If the system does n
224. talos tob itt eta su 1 4 US Baits nite ime aia reet a pep 1 6 PCMCIA Kits e VR Ete ER on NS 1 7 ACT Kits teer eter eet teste tet vedi UR oe 1 8 NI Serial Software Overview 1 9 Time Saving Development Tools eese eene eene 1 10 Chapter 2 PCI Serial Hardware Installation Verification and Configuration Windows 2000 XD 4 2 2 2 rte a ee ient ires 2 1 Installthe Software eere cepe e ede NU Adie Ee RENS AS A 2 1 Install the 41r tret e C ti a e etm 2 2 Verify the Install tion etiem detener Herbie entes 2 3 Configure Communication Port Settings esse 2 5 Windows Me OX SERE e ERE RR 2 9 Install the SoftWalre entran 2 9 Install th Hardware snieni teet tete eere ere edens 2 10 Verity the Installations oie RR E RE HERD 2 12 Configure Communication Port Settings esee 2 14 WandowWs INT iy RO EH ER ECRIRE ERREUR 2 17 Install th Softwaren uo e ERE cena ERES 2 17 Installthe HardWare oit er ERRARE ederent 2 17 Verify the Installation nennen rennen nennen 2 19 Configure Communication Port Settings esee 2 20 National Instruments Corporation V NI Serial Hardware and Software for Windows Contents Chapter 3 PXI Serial Hardware Installation Verification and Configuration Windows 2000 X
225. terfaces only For more information about transceiver modes refer to Chapter 7 Using Your Serial Hardware After you have selected the serial port parameters for the current port click the OK button to save the changes or click the Cancel button to exit the dialog box without saving changes NI Serial Hardware and Software for Windows 5 12 ni com Chapter5 PCMCIA Serial Hardware Installation Verification and Configuration Port Settings Tab On the Port Settings tab you can change any of the settings by clicking the arrow button to the right of the setting When you click the arrow button a list of valid values for that setting appears Select the desired setting from the list Figure 5 7 shows the Port Settings tab N I PCMCIA 232 2 Communications Port COM2 Pro KA Eg Figure 5 7 Port Settings Tab National Instruments Corporation 5 13 NI Serial Hardware and Software for Windows Chapter 5 PCMCIA Serial Hardware Installation Verification and Configuration Advanced Port Settings You can view or change the advanced port settings by clicking the Advanced button on the Port Settings tab Figure 5 8 shows the Advanced Port Settings dialog box Advanced Port Settings x Transceiver 4 wire 2 wire DTR echo c 2 wire DTR ctrl x Tv Use FIFO buffers 2 wire 90 i Cancel Select lower settings to corect connection problems Select higher settings for faster performance _
226. tform c Inthe General Port Settings dialog box click the Resources button to view the resources for the port d Check the hardware resources If they are in conflict refer to the Resolving Resource Conflicts section 2 Make sure that the National Instruments serial driver is installed as follows a Locate the serial sys file in the WinNT system32 drivers directory b Ifthe serial sys file is missing reinstall the hardware and software For instructions on how to do so refer to the installation and verification chapter for your hardware platform c Right click the serial sys file and select Properties National Instruments Corporation D 15 NI Serial Hardware and Software for Windows Appendix D Troubleshooting and Common Questions USB d Click the Version tab If the Company Name is Microsoft the National Instruments serial driver is not installed properly To solve this problem reinstall the NI Serial software For instructions on how to do so refer to the installation and verification chapter for your hardware platform 3 Physically make sure the correct number of boards and ports are installed Address Test Failed If the address test failed Interrupt test cannot be performed error message appears you might have an address conflict with legacy boards in your system To solve this problem change the base addresses assigned to your legacy boards For instructions on how to do so refer to your legacy
227. the current RS 485 bias resistor mode you use NISERIAL GET RS485 BIAS and DeviceloControl with the following code SERIAL RS485 BIAS serial rs485 bias ULONG bytecount DeviceloControl comhandle NISERIAL GET RS485 BIAS PVOID NULL 0 PVOID amp serial rs485 bias sizeof serial_rs485 bias amp bytecount NULL RS 232 DTE DCE Transceiver Control The USB 232 two and four port hardware supports both DTE and DCE transceiver modes By default the RS 232 transceiver mode is forced to DTE but you can adjust this in two ways e Use the Advanced Settings tab in the control panel To set the transceiver mode to be used whenever a port is opened select the desired mode from the transceiver mode pull down menu e Change the transceiver mode programmatically by making a DeviceloControl function call to the serial driver National Instruments Corporation 7 11 NI Serial Hardware and Software for Windows Chapter 7 Using Your Serial Hardware Table 7 5 describes the RS 232 modes Table 7 5 RS 232 Modes RS 232 Mode Description Force DTE Default The transceiver is forced into DTE mode Force DCE The transceiver is forced into DCE mode Auto 232 The transceiver automatically switches between DTE and DCE modes about four times a second until a valid RS 232 signal is detected Note When using Auto232 if you connect two serial ports set to Auto232 or if valid RS 232 signals are pre
228. the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 4 USB Serial Hardware Installation Verification and Configuration PCMCIA Hardware Windows 2000 Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove the hardware information To do so complete the following steps 1 Select Start Settings Control Panel and double click the System icon 2 Select the Hardware tab and click the Device Manager button Double click the Multi function adapters icon 4 From the Multi function adapters list right click the National Instruments interface that you want to uninstall as shown in Figure C 7 National Instruments Corporation C 13 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software mj Z4 Device Manager ici xi Action e Ri ae My Computer Computer amp Disk drives 5 Display adapters 23 DVD CD ROM drives 2 Floppy disk controllers 9 Floppy disk drives amp IDE ATA ATAPI controllers Keyboards 3 Mice and other pointing devices Ee Ge E E E EE E Monitors x Multifunction adapters KOZNI PCMCIA 232 4 Multi Function Parent BI Network adapters Disable PCMCIA adapter
229. tility is automatically configured when you open a port on a serial interface Setting the RS 485 Transceiver Mode with DeviceloControl The NI Serial software uses programmatic control codes and the DeviceloControl Windows function for programming the RS 485 transceiver control mode To set and retrieve the RS 485 transceiver control mode complete the following steps Note You use the header file NISerial h included on your CD to integrate this code into your program easily 1 Add the following lines to your source code include lt winioctl h gt define RS485 MODE 4WIRE 0x0 define RS485 MODE 2W ECHO 0 1 define RS485 MODE 2W DTR 0x2 define RS485 MODE 2W AUTO 0x3 NI Serial Hardware and Software for Windows 7 6 ni com Chapter 7 Using Your Serial Hardware define NISERIAL SET RS485 MODE CTL CODE FILE DEVICE SERIAL PORT 4091 METHOD BUFFERED FILE ANY ACCESS define NISERIAL GET RS485 MODE CTL CODE FILE DEVICE SERIAL PORT 4090 METHOD BUFFERED FILE ANY ACCESS To set the RS 485 transceiver control mode use NISERIAL SET RS485 MODE and DeviceloControl For example to set to two wire Auto Control mode use the following code ULONG bytecount TRANSCEIVER MODE transceiver mode RS485 MODE 4WIRE DeviceloControl comhandle NISERIAL SET RS485 MODE PVOID amp transceiver mode sizeof transceiver mode PVOID NULL 0 amp bytecount NULL Ss Note A deprecated alternative to NISERIAL
230. tion B Note Ifyou want your serial hardware ports to use the names COM1 COM2 COM3 or COM4 refer to the Common Questions section of Appendix D Troubleshooting and Common Questions Restore Defaults To reset the fields to their default values at any time click the Restore Defaults button Windows NT Install the NI Serial Software Install the NI Serial software for Windows NT before you install the hardware 1 Log on as Administrator or as a user who has Administrator privileges Select Start Settings Control Panel Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs dialog box appears Click the Install button When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button to proceed The software installation wizard begins The wizard guides you through the necessary steps to install the NI Serial software You can go back and change values where appropriate by clicking the Back button You can exit the setup where appropriate by clicking the Cancel button Note This installation backs up the Microsoft Windows NT serial driver serial sys to serial bak and then overwrites serial sys You can find serial sys in the Windows NT system32 drivers directory The software installation is complete National Instruments Corporation 5 15 NI Serial Hardware and Software for Windows C
231. to install your hardware or if this is your first time to install the NI Serial software for Windows Me 9x skip to the next section Install the Hardware Otherwise continue to step 8 If your hardware is already installed restart Windows Me 9x Windows Me 9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes Your operating system Windows Me 9x may show the Windows Default Driver option If so make sure the Windows Default Driver is selected and click the OK button If the Windows Default Driver option is not shown the installation continues automatically When you finish continue to the Verify the Installation section If no New Hardware Found dialog box appears refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions 2 9 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration Install the Hardware Note If you are installing a PCI 485 you might need to adjust the value of the bias resistors depending on your application Bias resistors are not available on the eight port PCI 485 For more information refer to Chapter 7 Using Your Serial Hardware UN Caution Before you remove your board from the package touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on you
232. tware Install the NI Serial software for Windows Me 9x before you install the hardware 1 2 Install the Hardware Select Start Settings Control Panel Double click the Add Remove Programs icon in the Control Panel to launch the Add Remove Programs applet The Add Remove Programs dialog box appears Click the Install button When prompted insert the N Serial Software for Windows 2000 NT XP Me 9x CD and click the Next button to proceed The software installation wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software You can go back and change values where appropriate by clicking the Back button You can exit the setup where appropriate by clicking the Cancel button If you need to install your hardware or if this is your first time to install the NI Serial software for Windows Me 9x skip to the next section Install the Hardware Otherwise continue to Step 6 If your hardware is already installed restart Windows Me 9x Windows Me 9x should automatically detect your hardware and display one or more New Hardware Found dialog boxes When you finish continue to the Verify the Installation section If no New Hardware Found dialog box appears refer to the section Forcing Windows to Detect Your Hardware of Appendix D Troubleshooting and Common Questions To install the PCMCIA 232 or PCMCIA 485 in your computer first start Windows Me 9x If the card is not already inse
233. tware for Windows NT 1 Loginas Administrator or as a user who has Administrator privileges 2 Select Start Settings Control Panel 3 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears 4 Click the Install button 5 When prompted insert the NI Serial Software for Windows 2000 NT XP Me 9x and click the Next button The setup wizard begins The setup wizard guides you through the necessary steps to install the NI Serial software To go back and change values where appropriate click the Back button To exit the setup wizard at any time click the Cancel button Note The setup wizard backs up the Windows NT serial driver serial sys to serial bak and then overwrites serial sys You can find serial sys in the WinNT system32 drivers directory 6 Ifyour hardware is already installed restart Windows NT and continue to the Verify the Installation section The software installation is complete Install the Hardware UN Caution Before you remove your board from the package touch the antistatic plastic package to a metal part of your system chassis to discharge electrostatic energy which can damage several components on your serial board NI Serial Hardware and Software for Windows 3 16 ni com Chapter 3 PXI Serial Hardware Installation Verification and Configuration To install your PXI serial board complete the following steps 1 Turn off your PXI or CompactPCI chassis Keep the
234. vice Removal dialog box click the OK button to remove the hardware information or click the Cancel button to cancel your request Uninstall the Software Before you uninstall the NI Serial software you must remove the hardware information from your system as described in the previous section To uninstall the NI Serial software complete the following steps 1 Select Start Settings Control Panel 2 Double click the Add Remove Programs icon The Add Remove Programs dialog box appears This dialog box lists the software that you can uninstall NI Serial Hardware and Software for Windows C 8 ni com Appendix C Uninstalling the Hardware and Software Select NI Serial and click the Change Remove button The uninstallation program removes all folders utilities and registry entries associated with the NI Serial software Shut down Windows 2000 power off your computer and physically remove the serial interfaces from your system The uninstallation program removes only items that the setup wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 3 PXI Serial Hardware Installation Verification and Configuration Windows Me 9x Uninstall the Hardware Before you physically remove the serial hardware from your system you must remove
235. ware installed Windows 2000 D 19 diagnostic test failure Windows 2000 D 19 hardware support for SDLC and ModBus protocols D 24 loopback test problems D 24 maximum number of serial ports D 26 maximum supported baud rate Windows NT D 21 naming National Instruments serial ports Windows NT D 20 removing information about serial boards from Device Manager Windows 2000 D 21 sending data to closed serial ports D 24 NI Serial Hardware and Software for Windows l 2 throughput definition D 23 USB forcing windows to detect your hardware D 17 resolving power conflicts D 16 version differences D 24 using USB serial hardware with high speed USB networks D 24 using USB Ethernet and plug in hardware simultaneously D 26 Windows 2000 D 19 communication port settings viewing or changing Windows 2000 2 5 3 5 4 3 5 5 6 5 Windows Me 9x 2 14 3 13 5 12 6 14 Windows NT 2 20 3 19 5 18 6 22 ComponentWorks 1 10 ComponentWorks 1 11 configuration resource settings 6 24 conflict free resources D 5 selecting D 5 connecting cables A 1 connecting cables to four port PCI serial board figure A 5 connecting two wire devices A 1 contacting National Instruments F 2 conventions ix customer education F 1 professional services F 1 technical support F 1 D DB 25 connector A 4 pin descriptions table A 4 pin locations figure A 4 ni com DB 9 100 pin connector pin descriptions figure A 8 100 pin
236. ware and Software for Windows D 6 ni com Appendix D Troubleshooting and Common Questions Troubleshooting Diagnostic Messages This section lists possible error messages returned by the diagnostic utility along with solutions No National Instruments Serial Port Found Ifthe No National Instruments serial port found error message appears complete the following steps 1 Verify the hardware resources as follows a Inthe Device Manager tab under Multi function adapters double click a serial board b Ifa serial board is missing from the Multi function adapters list reinstall the hardware and software For instructions on how to do so refer to the installation and verification chapter for your hardware platform c Click the Resources tab If the resources were assigned properly the Resources tab shows which resources are assigned to your serial ports If they are in conflict refer to the Resolving Resource Conflicts with Legacy Boards section 2 Insome versions of Windows Me 9x in the Device Manager the Driver tab shows information about the installed driver Make sure that the National Instruments serial driver is installed for the port If the serial driver is a Microsoft driver reinstall the NI Serial software For instructions on how to do so refer to the installation and verification chapter for your hardware platform 3 Make sure that the National Instruments serial driver is installed as follows a Locat
237. wizard installed If you added anything to a directory that the setup wizard created the uninstallation program does not delete that directory You must remove any remaining components yourself To reinstall the hardware and software refer to Chapter 4 USB Serial Hardware Installation Verification and Configuration Windows Me 9x Uninstall the Hardware Before physically removing the serial hardware you must remove the hardware information from the Windows Me 9x Device Manager Complete the following steps to uninstall the hardware 1 m E oe National Instruments Corporation Double click the System icon under Start Settings Control Panel The System Properties dialog box appears Select the Device Manager tab Click the View devices by type button Double click the Ports COM amp LPT icon Select the National Instruments port to remove from the list of ports as shown in Figure C 8 C 15 NI Serial Hardware and Software for Windows Appendix C Uninstalling the Hardware and Software System Properties HEI General Device Manager Hardware Profiles Performance View devices by type C View devices by connection Keyboard Modem Monitor B Mouse E Multi function adapters N I PCMCIA 232 4 Multi function Parent B9 Network adapters E Dther devices PCMCIA socket oy Ports COM amp LPT Communications Port COM1 A i N I PCMCIA 232 4 Communications Port COM5 N I PCMCIA
238. ws 2000 XP 10 Windows 2000 XP should automatically detect your hardware and display the Found New Hardware Wizard Complete the wizard by clicking Next in each window and then Finish If the Found New Hardware Wizard does not appear refer to the Forcing Windows to Detect Your Hardware section of Appendix D Troubleshooting and Common Questions The serial hardware installation is complete Verify the Installation To verify the hardware and software installation complete the following steps 1 Select Start Settings Control Panel and double click the System icon National Instruments Corporation 2 3 NI Serial Hardware and Software for Windows Chapter 2 PCI Serial Hardware Installation Verification and Configuration 2 Click the Hardware tab and then click the Device Manager button Double click the Ports COM amp LPT icon to display all of the ports 4 Double click the Multi function adapters icon The PCI serial boards are configured as devices belonging to the multi function adapters class The multi function parent device is listed under the Multi function adapters icon and each child device is listed as a port under the Ports COM amp LPT icon Figure 2 2 shows the Device Manager tab for serial hardware that is installed properly 28 5 Action View gt 22 a 8 E 8 8 E
239. y 160 mm 3 94 by 6 37 in connector sss 10 position modular jack Power requirement from PXI channel PXI 8420 4 T as eene Aden 125 mA typical 200 mA maximum VZV DCs ares deem 40 mA typical 400 mA maximum PXI 8421 4 5 350 mA typical 750 mA maximum 8422 4 HSN DC Bed 500 mA typical 750 mA maximum PXI 8423 4 S aec 1 000 mA typical 1 500 mA maximum Eight Port Boards Dimensions gno abe 100 by 160 mm 3 94 by 6 37 in connector ssssseeeee 68 position SCSI type connector 1 The four port PXI serial boards require a cable to convert the 10 position modular jack to either DB 9 or DB 25 connectors The eight port PXI serial boards require cables which are included in your kit to convert the 68 position connector to eight DB 9 connectors National Instruments Corporation E 5 NI Serial Hardware and Software for Windows Appendix E Specifications Power requirement from PXI channel PXI 8420 8 T5 VDO denen 150 mA typical 250 mA maximum X12 80 mA typical 800 mA maximum PXI 8421 8 9 VDO iude 1 100 mA typical 2 000 mA maximum 16 Port Boards Dimensions eeeeeee 100 by 160 mm 3 94 by 6 37 in connector sse 100 position SCSI type connector Power requirement from PXI channel PXI 8420 16 VDO i bel 500 mA typical 750 mA maximum Environmental Characteristics Operating

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