MODEL USB-IIRO4-2SM USER MANUAL
Contents
1. pe US dona ea a 16 Table 6 3 Serial Connector Pin Assignments 17 4 Manual USB IIRO4 28M Chapter 1 Introduction The USB IIRO4 2SM is a USB multifunction device incorporating a USB 4 port hub internally to provide both Isolated I O and Serial Communication features in one product The following paragraphs will first describe the Onboard Serial ports followed by the Isolated Input and Relay Output features Serial Communication This Serial Adapter was designed for effective multipoint transmission in any one of three modes on each channel These modes RS232 RS422 and RS485 EIA485 protocol The card features two independent asynchronous serial ports RS422 Balanced Mode Operation The board supports RS422 communications and uses differential balanced drivers for long range and noise immunity The board also has the capability to add load resistors to terminate the communications lines RS422 communications requires that a transmitter supply a bias voltage to ensure a known zero state Also receiver inputs at each end of the network should be terminated to eliminate ringing The board supports biasing by default and supports termination by jumpers on the card If your application requires the transmitter to be un biased please contact the factory RS485 Balanced Mode Operation The board supports RS485 communications and uses differential balanced drivers for long range2. CD ROM for information on installing under linux Hardware Installation The board can be installed in any USB 2 0 or USB 1 1 port Please install the software package before plugging the hardware into the system 10 Manual USB IIRO4 2SM Chapter 3 Option Selection Refer to the setup programs on the CD provided with the board Also refer to the Block diagram and the Option Selection Map when reading this section of the manual Terminations A transmission line should be terminated at the receiving end in its characteristic impedance Installing a jumper at the locations labeled RS485 LD applies a 1200 load across the transmit receive input output for RS485 operation Jumpers having to do with the termination of each channel are located near the output connector They are labeled by channel The load jumper is labeled TERM The other two jumpers are used to connect the transmit and receive lines for the two wire RS485 mode In RS485 operations where there are multiple terminals only the RS485 ports at each end of the network should have terminating impedance as described above To terminate the COM A port place a jumper at the location labeled Ch A RS485 To terminate the COM B port place jumpers at the location labeled Ch B RS485 Also for RS485 operation there must be a bias on the TRX and TRX lines If the adapter is not to provide that bias consult the factory for technical support Data Cable Wiring Signal Pin
3. Connection Ain out 2 Ain out 3 100Q to Ground 5 Filter Response Switch Jumpers are used to select input filtering on a channel by channel basis When jumper FLTO is installed additional filtering is introduced for bit 0 FLT 1 for bit 1 etc Jumper Selection Bit Filtered FLT 0 INOO FLT 1 INO1 FLT 2 INO2 FLT 3 INO3 11 Manual USB IIRO4 2SM Special 4 Wire RS485 Modes A Two Wire m 485 Term m 8 Two Wire m_m Wire B s Two Wire m 485 Term amp Two Wire m Wire m Two Wire Two Wire RS485 RS485 RS 485 2 Wire Terminated RS 485 2 Wire FILTER NO FILTER go Figure 3 1 Option Selection Map This board has 2 separate channels which can be individually configured Each channel can be used in one of four modes 1 RS 232 Install the top jumper in the RS232 position left 2 RS 422 Install the top jumper in the RS422 RS485 position right 3 RS485 4 wire Install the top jumper in the RS422 RS485 position right and the RS485 Mode jumper 4 RS485 2 wire Install the top jumper in the RS422 RS485 position right the RS485 Mode jumper the RS485 TxRx jumper and the RS485 TxRx jumper To provide a termination load in the RS485 mode install the appropriate RS485 TERM jumper The jumpers on the card must be properly placed in order to have the c
4. Isolated Functionality This board is an ideal solution for adding portable easy to install digital I O to any computer with a USB port This is a USB 1 1 device compatible with both USB 1 1 and USB 2 0 ports The board is plug and play allowing for quick connect disconnect whenever you need additional I O on your computer Inputs The board provides four optically isolated inputs These inputs can accept either AC or DC signals and are not polarity sensitive Input signals are rectified by photocoupler diodes while unused power gets dissipated through a 1 8k ohm resistor in series The inputs may be driven by either DC sources of 3 to 31 volts rms or AC sources at frequencies of 40 Hz to 10 KHz Standard 12 24 AC control transformer outputs can be accepted as well External resistors connected in series may be used to extend the input voltage range however this will raise the input threshold range Consult with factory for available modified input ranges Each input circuit contains a switchable filter that has a 4 7 millisecond time constant Without filtering the response is less then 40 microseconds The filter must be selected for AC inputs in order to eliminate the on off response to AC The filter is also valuable for use with slow DC input signals in a noisy environment The filter may be switched out for DC inputs in order to obtain faster response Filters are individually selected by jumpers The filters are switched into the circuit w
5. 5541796 LED LED INTERFACE UART WITH MICROCONTROLLER Z E 4 ISOLATED RELAY 7 Rs485 INPUT 0 3 OUTPUT 0 3 RS422 N MODE 8232 B42 onto RS422 32 8485 gt SELECT INBUT OUTPUT DRIVER 532 MODE BUFFERS e CURRENT REGISTER REGISTER 9 0 OPn 7 AH READBACK Ao Y SWITCHABLE FILTERS RS485 3 2 WIRE RS485 W TERMINATION or RS422 LOOPBACK SELECT FILTER ENABLE MALE DB 9 CONNECTOR JUMPERS Figure 1 1 Block Diagram 9 Manual USB IIRO4 2SM Chapter 2 Installation Software CD Installation These paragraphs are intended to detail the software installation steps as well as describe what is being installed The software provided with this board is contained on one CD and must be installed onto your hard disk prior to use To do this perform the following steps as appropriate for your software format and operating system Substitute the appropriate drive letter for your CD ROM or disk drive where you see HL in the examples below WIN95 98 Me NT 2000 XP 2003 a Place the CD into your CD ROM drive b The CD should automatically run the install program Ifthe install program does not click START RUN and type BJOS click OK or press c Follow the on screen prompts to install the software for this board LINUX 1 Please refer to linux htm on the
6. 9 Relay 1 Normally Closed 19 Relay 2 Common 21 12 Relay 3 Normally Open 23 13 Relay 3 Normally Closed 25 19 Relay 0 Normally Open 14 20 21 Relay 0 Normally Closed 16 22 Relay 1 Common 18 24 Relay 2 Normally Closed 22 25 Relay 3 Common 24 Table 6 2 0825 Pinout 16 Manual USB IIRO4 2SM DB 9 Male Pin for RS 232 Signals RS 485 Signals RS 422 Signals each of Ch A G Industry Standard 2 Wire Also 4wire RS485 TX RX RX TX Table 6 3 Serial Connector Pin Assignments 17 Manual USB IIRO4 2SM Customer Comments If you experience any problems with this manual or just want to give us some feedback please email us at tech portwell com Please detail any errors you find and include your mailing address so that we can send you any manual updates 18 Manual USB IIRO4 2SM
7. MODEL USB IIRO4 2SM USER MANUAL FILE MUSB IIRO4 2SM A1I Notice The information in this document is provided for reference only Portwell does not assume any liability arising out of the application or use of the information or products described herein This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of Portwell nor the rights of others IBM PC PC XT and PC AT are registered trademarks of the International Business Machines Corporation Printed in USA Copyright 2006 by Portwell I O Products Inc rights reserved WARNING ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE COMPUTER POWER OFF ALWAYS TURN COMPUTER POWER OFF BEFORE INSTALLING A CARD CONNECTING AND DISCONNECTING CABLES OR INSTALLING CARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE TO THE I O CARD AND WILL VOID ALL WARRANTIES IMPLIED OR EXPRESSED 2 Manual USB IIRO4 2SM Warranty Prior to shipment Portwell equipment is thoroughly inspected and tested to applicable specifications However should equipment failure occur Portwell assures its customers that prompt service and support will be available All equipment originally manufactured by Portwell which is found to be defective will be repaired or replaced subject to the following considerations Terms and Conditions If a unitis suspected of failure contact Portwe
8. and noise immunity RS485 operation involves switchable transceivers and the ability to support multiple devices on a single party line The RS485 specification defines a maximum of 32 devices on a single line The number of devices served on a single line can be expanded by use of repeaters This board also has the capability to add load resistors to terminate the communications lines 5485 communications requires that one transmitter supply a bias voltage to ensure a known zero state when all transmitters are off Also receiver inputs at each end of the network should be terminated to eliminate ringing The card supports biasing by default and supports termination by jumpers on the card If your application requires the transmitter to be un biased please contact the factory COM Port Compatibility The FT232BM UARTS are used as Asynchronous Communication Elements ACE These include 128 byte transmit amp 384 byte receive buffers to protect against lost data in multitasking operating systems while maintaining 100 percent compatibility with the original IBM serial port The system assigns the address es A crystal oscillator is located on the board This oscillator permits precise selection of baud rate up to 921 6K bps The driver receiver used SP491 in non RS232 modes is capable of driving extremely long communication lines at high baud rates It can drive up to 60 mA on balanced lines and receive inputs as low as 200 mV differ
9. ard function properly Note Any unneeded jumpers that are installed can cause the adapter to function incorrectly 12 Manual USB IIRO4 2SM Chapter 4 Address Selection Use the provided driver to access the USB board This driver will allow you to determine how many supported USB devices are currently installed and each device s type This information is returned as a Vendor ID VID Product ID PID and Device Index The board s VID is 0x1605 and its is 0 8030 The Device Index is determined by how many of the device you have in your system and provides a unique identifier allowing you to access a specific board at will 13 Manual USB IIRO4 2SM Chapter 5 Programming The driver software provided with the board uses a 32 bit dll front end compatible with any Windows programming language Samples provided in Borland C Builder Borland Delphi Microsoft Visual Basic and Microsoft Visual C demonstrate the use of the driver The following functions are provided by the driver in Windows These functions will allow you to read or write individual bits bytes or the entire board worth of data For detailed information on each function refer to the html Driver Manual located in the Win32 directory for this board unsigned long GetDevices void unsigned long QueryDevicelnfo Devicelndex pPID pName pDIOBytes pCounters unsigned long DIO Configure Devicelndex bTristate pOutMask pData unsigned long DIO Write1 D
10. cabling spacing of pins spacing between traces on the PCB humidity dust and other environmental factors This is a safety issue so a careful approach is required For CE certification isolation was specified at 40V AC and 60V DC The design intention was to eliminate the influence of common mode Use proper wiring techniques to minimize voltage between channels and to ground For example when working with AC voltages do not connect the hot side of the line to an input Tolerance of higher isolation voltage can be obtained on request by applying a conformal coating to the board Relay Outputs Number of outputs 4 SPDT form C Contact Type Single crossbar Ag with Au clad Rated Load AC 0 5 A at 125 VAC 62 5 VA max Rated Load DC 1A at 24 VDC 30 W max Max Switching Voltage 125 VAC 60 VDC Max Switching Current 1A Contact Resistance 100 mQ max Contact Life mech l 5 million operations min Operating Time 5 milliseconds max Release Time 5 milliseconds max Auxiliary USB Connector This board has an optional feature You can cable an extra USB type A connector to the onboard USB1 1 hub This would provide an additional daisy chained USB 1 1 bus to which you can attach any 3rd party USB devices you may wish 8 Manual USB IIRO4 2SM USB 1 1 OR 2 0 BUS 0 USB SPA 4 PORT 14 HUB DOWNSTREAM COMA COMB USB IIRO 4 ACTIVITY USB BASED SAMEAS ACTIVITY 0
11. ential signal superimposed on common mode noise of 12 V or 7 V In case of communication conflict the driver receivers feature thermal shutdown The driver receiver used in RS232 mode is the ICL3243 5 Manual USB IIRO4 2SM Communication Mode The board supports Half Duplex communications with a 2 wire cable connection Half Duplex allows traffic to travel in both directions but only one way atatime RS485 communications commonly use the Half Duplex mode since they share only a single pair of wires Baud Rate Ranges The board has capability for baud rates up to 921 6K bps Serial Specifications Communications Interface I O Connection Standard USB connector Serial Ports 2 male D sub 9 pin connectors Character length 5 6 7 or 8 bits Parity Even odd or none Stop Interval 1 1 5 or 2 bits Serial Data Rates Up to 921 6K Receiver Input Sensitivity 200 mV differential input Common Mode Rejection 12V to 7V Transmitter Output Drive Capability 60 mA with thermal shutdown Bus Type USB 1 1 USB 2 0 Host Compatible Environmental Operating Temperature Range 0 C to 60 C Storage temperature Range 50 to 120 C Humidity 5 to 95 non condensing Power Required 120mA Quiescent 320mA maximum see below 20mA for each activated relay 80 max Current 0 60mA per com channel Size 4 inches wide by 4 inches deep by 1 25 inches high 6 Manual USB IIRO4 2SM
12. evicelndex Bitlndex bData unsigned long DIO Write8 Devicelndex Bytelndex Data unsigned long DIO WriteAll Devicelndex pData unsigned long DIO Read8 Devicelndex Bytelndex pBuffer unsigned long DIO ReadAll Devicelndex Buffer Please note this board does not contain any 8254 devices and the following functions will not be useful unsigned long 8254Mode Devicelndex Blocklndex Counterlndex Mode unsigned long 8254ModeLoad Devicelndex BlockIndex Counterlndex Mode LoadValue unsigned long 8254ReadModeLoad Devicelndex Blocklndex Mode LoadValue pReadValue unsigned long 8254Read Devicelndex Blocklndex Counterlndex pReadValue unsigned long CTR StartOutputFreq Devicelndex Counterlndex pHz 14 Manual USB IIRO4 2SM Chapter 6 Connector Pin Assignments Pin Signal Name Pin Signal Name 1 InputO A 14 Relay 0 NO Relay 0 2 Input 0 B 15 Common Input 1A 16 Relay 0 NC Input 1 B 17 Relay 1 NO Relay 1 5 Input2A 18 Common Input 2 B 19 Relay 1 NC Input A 20 Relay 2 NO Relay 2 8 Input 3 B 21 Canine 9 Ground 22 Relay 2 NC 10 Ground 23 Relay 3 NO 11 5 V 24 SIR Common 12 5 V 25 Relay 3 NC 13 No Connect 26 No Connect Table 6 1 IIRO Connector Pin Assignments 15 Manual USB IIRO4 2SM DB25F Function IDC Connector Input 0 A 5 Ground
13. hen the jumpers are installed in position IPFLTO to IPFLT3 Outputs The board s outputs are comprised of four FORM C SPDT electro mechanical relays These relays are all de energized at power on USB Connector The USB connector is a Type B connector and mates with the cable provided The USB port provides communication signals along with 5 VDC power The board is powered from the USB port or alternate USB connector A second USB Input Connector P4 in parallel to the Type B connector is supplied This second connector is a USB OTG connector LED There are four LEDs present on the product functioning as follows 1 USB Power Present USB Digital I O Enabled Ready Indicator Function Serial Port 1 Activity Serial Port 2 Activity TH 7 Manual USB IIRO4 2SM Isolated Input Relay Output Specifications Isolated Inputs Number of inputs 4 Type Non polarized optically isolated from each other and from the computer CMOS compatible Voltage Range 3 to 31 DC or AC Rms 40 to 10000 Hz Isolation 500V see note channel to ground or channel to channel Input Resistance 1 8K ohms in series with opto coupler Filter Response Times Rise Time 4 7 mS Fall Time 4 7 mS Non Filter Response Times Rise Time 10 uS Fall Time 30 uS Notes on Isolation Opto Isolators and connectors are rated for at least 500V but isolation voltage breakdowns will vary and is affected by factors like
14. ll Customer Service department Be prepared to give the unit model number serial number and a description of the failure symptom s We may suggest some simple tests to confirm the failure We will assign a Return Material Authorization RMA number which must appear on the outer label of the return package All units components should be properly packed for handling and returned with freight prepaid to the Portwell designated Service Center and will be returned to the customer s user s site freight prepaid and invoiced Coverage First Three Years Returned unit part will be repaired and or replaced at Portwell option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment Following Years Throughout your equipment s lifetime Portwell stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry Equipment Not Manufactured by Portwell Equipment provided but not manufactured by Portwell is warranted and will be repaired according to the terms and conditions of the respective equipment manufacturer s warranty General Under this Warranty liability of Portwell is limited to replacing repairing or issuing credit at Portwell discretion for any products which are proved to be defective during the warranty period no case is Portwell liable for consequential or special damage arriving from use or misuse of our product The cu
15. stomer is responsible for all charges caused by modifications or additions to Portwell equipment not approved in writing by Portwell or ifin Portwell opinion the equipment has been subjected to abnormal use Abnormal use for purposes of this warranty is defined as any use to which the equipment is exposed other than that use specified or intended as evidenced by purchase or sales representation Other than the above no other warranty expressed or implied shall apply to any and all such equipment furnished or sold by Portwell 3 Manual USB IIRO4 2SM TABLE OF CONTENTS Chapter Introduction REGAIN AU 5 Communication Modes 2 4 s e e xe ORE bet ee tae 6 Figure 1 1 BlockDiagram s snl a sam ERR ul n 9 Chapter 2 Installation m ceo ke a 10 Hardware Installation em s S e Wee Rei RR Rue tee ce im RU Ae e 10 Ghapter3 Option Selection 2 x n n RED M eor d RO 11 Figure 3 1 Option Selection 12 Chapter 4 Address Selection 13 Ghapter 5 Programming M E EIER EP sus ea 14 Chapter 6 Connector Pin Assigaments 15 Table 6 1 IIRO Connector Pin Assignments 15 Table 6 2 DB25
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