7107 User Manual - Sealevel Systems, Inc
Contents
1. 115 2K bps 14 4K bps 153 6K bps 19 2K bps 230 4K bps 28 8K bps 460 8K bps 57 6K bps 921 6K bps 115 2K bps If your communications package allows the use of baud rate divisors choose the appropriate divisor from the following table Sealevel Systems Inc 7 SI0 485 LPCI User Manual For this Data Rate Choose this Divisor 1200 bps 2400 bps 4800 bps 9600 bps 19 2K bps 38 4K bps 57 6K bps 115 2K bps 230 4K bps 460 8K bps Sealevel Systems Inc 921 6K bps SI0 485 LPCI User Manual RS 485 Enable Modes Power Supply RS 485 is ideal for multi drop or network environments RS 485 requires a tri state driver that will allow the electrical presence of the driver to be removed from the line The driver is in a tri state or high impedance condition when this occurs Only one driver may be active at a time and the other driver s must be tri stated This capability allows multiple PCs to be connected in a multi drop bus and selectively polled Failure to correctly utilize the enable can cause transmitter contention problems preventing operation by any node on the network The SIO4 104 485 utilizes the automatic RS 485 capabilities of the OX16C950 to control the RS 485 tri state enable This is a highly efficient method of enable and allows for minimum turn around times If the Sealevel Systems Windows Software driver is used a Radio style2. IRQ if any should be identified Configure your Sealevel Systems adapter so that there is no conflict with currently installed adapters No two adapters can occupy the same I O address Make sure the Sealevel Systems adapter is using a unique IRQ While the Sealevel Systems adapter does allow the sharing of IRQs many other adapters i e SCSI adapters amp on board serial ports do not The IRQ is typically selected by the BIOS or Operating system Some BIOS setup software will allow changing the IRQ but others do not Another method of changing assigned resources is to try changing PCI slots This will typically cause the BIOS or OS to reassign the resources Make sure the Sealevel Systems adapter is securely installed in a motherboard slot For Windows95 98 ME NT 2000 XP the diagnostic tool WinSSD is installed in the SeaCOM folder on the Start Menu during the setup process First find the ports using the Device Manager then use WinSSD to verify that the ports are functional Remember that a loopback test is not possible in the RS 485 2 wire mode Always use the Sealevel Systems diagnostic software when troubleshooting a problem This will eliminate any software issues from the equation If these steps do not solve your problem please call Sealevel Systems Technical Support 864 843 4343 Our technical support is free and available from 8 00AM 5PM Eastern Time Monday through Friday For email support contact ma
3. User Manual Ground Data Positive SV 12V Power selected by El E O Sealevel Systems Inc 5 SI0 485 LPCI User Manual Card Setup Address and IRQ selection The SIO4 104 485 is automatically assigned I O addresses and IRQs by your motherboard BIOS Only the I O address may be modified by the user Adding or removing other hardware may change the assignment of I O addresses and IRQs Electrical Interface Selection The SIO 485 LPCI can be individually configured via SW1 as RS 422 or as a two four wire RS 485 interface The following table illustrates the electrical modes for SW1 Electrical Mode Switch Position 1 Switch Position 2 Switch Position 3 RS 422 Off Off Off RS 485 4 Wire On On Off RS 485 2 Wire Off On On Line Termination Typically each end of the RS 485 bus must have line terminating resistors RS 422 terminates at the receive end only A 120 ohm resistor is across the RS 422 485 data input in addition to a 1K ohm pull up pull down combination that biases the receiver inputs The 120 Ohm termination is switched in or out by SW1 silk screen position T With the switch in the On position termination is present With it in the Off position termination is removed RS 485 Echo The RS 485 Echo is the result of connecting the receiver inputs to the transmitter outputs Every time a character is transmitted it is also received The SIO 485 LPCI aut
4. be required to take adequate measures to prevent or correct the interference Always use cabling provided with this product if possible If no cable is provided or if an alternate cable is required use high quality shielded cabling to maintain compliance with FCC EMC directives Sealevel Systems Inc 16 SI0 485 LPCI User Manual Warranty WARRANTY Sealevel s commitment to providing the best I O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured products We are able to offer this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field Sealevel products are designed and manufactured at its Liberty South Carolina facility allowing direct control over product development production burn in and testing Sealevel Systems Inc hereafter Sealevel warrants that the Product shall conform to and perform in accordance with published technical specifications and shall be free of defects in materials and workmanship for life In the event of failure Sealevel will repair or replace the product at Sealevel s sole discretion Failures resulting from misapplication or misuse of the Product failure to adhere to any specifications or instructions or failure resulting from neglect or abuse are not covered under this warranty Warranty service is obtained by delivering the Product to Sealevel and providing proof of purchase Retur
5. transferred through a simple and straightforward programming interface A starting bit followed by a pre defined number of data bits 5 6 7 or 8 defines character boundaries for asynchronous communications The end of the character is defined by the transmission of a pre defined number of stop bits usually 1 1 5 or 2 An extra bit used for error detection is often appended before the stop bits Idle state of Odd Even line j 5 to 8 Data Bits _ i as Remain Idle on next start bit 1 DS De ie De ie poet Un pret en mn Pot b i I l FE STOPE 11 de AS A fe 0 EE Fi 11 1 52 L 2 This special bit is called the parity bit Parity is a simple method of determining if a data bit has been lost or corrupted during transmission There are several methods for implementing a parity check to guard against data corruption Common methods are called E ven Parity or O dd Parity Sometimes parity is not used to detect errors on the data stream This is refereed to as N o parity Because each bit in asynchronous communications is sent consecutively it is easy to generalize asynchronous communications by stating that each character is wrapped framed by pre defined bits to mark the beginning and end of the serial transmission of the character The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends The communication parameters are bau
6. SIO 485 LPCI User Manual Part Number 7107 SYSTEMS INCORPORATED www sealevel com PO Box 830 Liberty SC 29657 864 843 4343 Table of Contents INTRODUCTION Other Sealevel Low Profile PCI Serial I O Products BEFORE YOU GET STARTED What s Included Optional Items SOFTWARE INSTALLATION Windows 95 98 ME NT 2000 XP Linux 3rd Party Software Support PHYSICAL INSTALLATION Physical Connection CARD SETUP Address and IRQ selection Electrical Interface Selection Line Termination RS 485 Echo Clock Modes RS 485 Enable Modes ELECTRICAL CHARACTERISTICS Specifications APPENDIX A TROUBLESHOOTING APPENDIX B HOW TO GET ASSISTANCE APPENDIX C ELECTRICAL INTERFACE RS 422 RS 485 APPENDIX D ASYNCHRONOUS COMMUNICATIONS Sealevel Systems Inc SL9055 Revision 8 2015 SI0 485 LPCI User Manual Ea wo UU QQ N N N 00 NA UU aA aA nan A BR Q bn Fm m p N e APPENDIX E SILK SCREEN 7107 PCB APPENDIX F COMPLIANCE NOTICES Federal Communications Commission Statement WARRANTY Sealevel Systems Inc SL9055 Revision 8 2015 SI0 485 LPCI User Manual 13 14 14 15 Introduction The SIO 485 LPCI Item Number 7107 is a low profile PCI module that provides a single RS 422 485 serial interface port The board is designed using the OX16C950 UART which features a 128 byte FIFO and flexible clock prescalar from 1 to 31 875 with support f
7. Sealevel Systems CD in to your CD drive 3 If Auto Start is enabled for this drive the software will automatically launch Otherwise point your browser to the Index htm on the root directory of the CD 4 Select Install Software 5 Select the Part Number for your adapter from the listing 6 Select Windows 98 ME 2000 XP The setup file will automatically detect the operating environment and install the proper components Next depending on the OS version select the Run this program from its current location or Open option Follow the information presented on the screens that follow 7 A screen may appear with the declaration The publisher cannot be determined due to the problems below Authenticode signature not found Please select the Yes button and proceed with the installation This declaration simply means that the Operating System is not aware of the driver being loaded It will not cause any harm to your system 8 During setup the user may specify installation directories and other preferred Linux configurations This program also adds entries to the system registry that are necessary for specifying the operating parameters for each driver An uninstall option is also included to remove all registry INI file entries from the system Refer to D software seacom Other Linux Linux serial readme where D your CDROM driver letter found on the Sealevel Systems CD This file contains val
8. User Manual Electrical Characteristics Specifications RS 422 485 Transceiver Bidirectional Transceiver Meet or Exceed the Requirements of ANSI Standards TIA EIA 422 B and TIA EIA 485 A and ITU Recommendations V 11 and X 27 Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments 3 State Driver and Receiver Outputs Individual Driver and Receiver Enables Wide Positive and Negative Input Output Bus Voltage Ranges Driver Output Capability 60 mA Max Thermal Shutdown Protection Driver Positive and Negative Current Limiting Receiver Input Impedance 12 KQ Min Receiver Input Sensitivity 200 mV Receiver Input Hysteresis 50 mV Typ Operate From Single 5 V Supply Temperature Range Operating 0 C 70 C Storage 50 C 105 C Power Requirements 5VDC 400 mA Physical Dimensions Length 4 721 inches 11 99 cm Height 2 536 inches 6 44 cm Sealevel Systems Inc 10 SI0 485 LPCI User Manual Appendix A Troubleshooting Sealevel Software is supplied with the Sealevel Systems adapter and may be used in the troubleshooting procedures Using this software and following these simple steps can eliminate most common problems without the need to call Technical Support 1 Identify all I O adapters currently installed in your system This includes your on board serial ports controller cards sound cards etc The I O addresses used by these adapters as well as the
9. al for multi drop or network environments RS 485 tri state driver not dual state will allow the electrical presence of the driver to be removed from the line Only one driver may be active at a time and the other driver s must be tri stated RS 485 can be cabled in two ways two wire and four wire mode Two wire mode does not allow for full duplex communication and requires that data be transferred in only one direction at a time For half duplex operation the two transmit pins should be connected to the two receive pins Tx to Rx and Tx to Rx Four wire mode allows full duplex data transfers RS 485 does not define a connector pin out or a set of modem control signals RS 485 does not define a physical connector Sealevel Systems Inc 13 SI0 485 LPCI User Manual Appendix D Asynchronous Communications Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character Data rate error checking handshaking and character framing start stop bits are pre defined and must correspond at both the transmitting and receiving ends Asynchronous communications is the standard means of serial data communication for PC compatibles and PS 2 computers The original PC was equipped with a communication or COM port that was designed around an 8250 Universal Asynchronous Receiver Transmitter UART This device allows asynchronous serial data to be
10. button on the Advanced property page under the Device manager can be selected that will configure the OX16C950 automatic RS 485 enable Another way of controlling the tri state enable is with the output modem control signal Request To Send RTS Some communication software packages refer to RS 485 as RTS enable or RTS block mode transfer The SIO4 104 485 is compatible with this RS 485 mode as well If the Sealevel Systems Windows Software driver is used a Radio style button on the Advanced property page under the Device manager can be selected that will automatically toggle RTS for use as an enable Switch SW1 is used to control the RS 485 mode functions for the driver circuit The selections are RTS enable silk screen R The RTS mode uses the RTS modem control signal to enable the RS 485 interface and provides backward compatibility with existing software products DTR enable silk screen D The DTR mode uses the DTR modem control signal to enable the RS 485 interface provides backward compatibility with existing software products and with the Oxford Semiconductor 16C950 RS 485 enable feature The SIO 485 LPCI has the ability to provide DC power on pin 9 of the DB 9 connector to be used by the integrator in low power implementations This power is fused at 1A and is selectable as 5 12 VDC or no power required 12 EI 5 Sealevel Systems Inc 9 SI0 485 LPCI
11. c 18 SI0 485 LPCI User Manual
12. d rate parity number of data bits per character and stop bits i e 9600 N 8 1 Sealevel Sysiems Inc 14 SI0 485 LPCI User Manual Appendix E Silk Screen 7107 PCB FID1 FID2 swi me aie IA E i 422 Off Off Off Em 485 4 On On Off 3_ 7107 Rev B 485 2 Off On On ca E Copyright 2004 gt dal BEA he cS c6 c7_ Made in USA Ji 132 U4 89 R1 O 5555885855558 133 HABBBEBGH8 BARBARA A BEA ARABE EE BABA RAR 88 aS o2 2s RE R R O 000 EE SS SE a Q R4 R5 R6 O O p BE SS 28 mo RII R28 R27 TZ R8 R9 RIB ss SS Ba R12 R13 T F US BBAESRSEERE R14 R15 ja SES SE F1 69 0 ue DIP Je 12 SRD O JE C18 ae 0 O 0 0 R20 R21 C T a ee BEE ou c26 C12 C13 R22014 CISR24C16 C17 CI8C19C20 R23C21 C22 C23 C24 C25 un ma coz o o O oO oo 2 a o oc 0 oo O oF GC O jo ie o a ao Oo mi a mi o a LJ o o E mi oOo o oO o o Ey Oon sw1 ia 12 E1 5 FID3 O Sealevel Systems Inc 15 SI0 485 LPCI User Manual Appendix F Compliance Notices Federal Commun
13. ge levels and driver receiver electrical specifications On a differential interface logic levels are defined by the difference in voltage between a pair of outputs or inputs In contrast a single ended interface for example RS 232 defines the logic levels as the difference in voltage between a single signal and a common ground connection Differential interfaces are typically more immune to noise or voltage spikes that may occur on the communication lines Differential interfaces also have greater drive capabilities that allow for longer cable lengths RS 422 is rated up to 10 Megabits per second and can have cabling 4000 feet long RS 422 also defines driver and receiver electrical characteristics that will allow 1 driver and up to 32 receivers on the line at once RS 422 signal levels range from 0 to 5 volts RS 422 does not define a physical connector RS 485 RS 485 is backwardly compatible with RS 422 however it is optimized for party line or multi drop applications The output of the RS 422 485 driver is capable of being Active enabled or Tri State disabled This capability allows multiple ports to be connected in a multi drop bus and selectively polled RS 485 allows cable lengths up to 4000 feet and data rates up to 10 Megabits per second The signal levels for RS 485 are the same as those defined by RS 422 RS 485 has electrical characteristics that allow for 32 drivers and 32 receivers to be connected to one line This interface is ide
14. ications Commission Statement CE EMC Directive FCC This equipment has been tested and found to comply with the limits for 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 such case the user will be required to correct the interference at the users expense Statement Products bearing the CE Label fulfill the requirements of the EMC directive 89 336 EEC and of the low voltage directive 73 23 EEC issued by the European Commission To obey these directives the following European standards must be met EN55022 Class A Limits and methods of measurement of radio interference characteristics of information technology equipment EN55024 Information technology equipment Immunity characteristics Limits and methods of measurement EN60950 IEC950 Safety of information technology equipment including electrical business equipment Warning This is a Class A Product In a domestic environment this product may cause radio interference in which case the user may
15. ile PCI bracket e 7107S includes standard size PCI bracket e Sealevel SeaCOM Software CD Optional Items Depending upon your application you are likely to find one or more of the following items useful for interfacing the SIO4 104 485 All items can be purchased from our website http www sealevel com or by calling 864 843 4343 e DB9 Female to RJ45 modular adapter Item Number DB112 The DB112 is pinned out for RS 485 signals and converts the 7107 DB9 Male connector to an RJ45 connection Designed for use with Seal O M series modules it takes power from pin 9 on the 7107 and sends it out over any standard RJ45 patch cable This eliminates the need for an external power supply when communicating with Seal O RS 485 devices e DB9 Male to DB9 Female Optomux adapter Item Number DB103 The DB103 is designed to convert a Sealevel DB9 Male connector to a pinout compatible with AC24AT and AC422AT Opto 22 ISA bus cards This allows Optomux devices to be controlled from any Sealevel RS 422 board with a DB9 Male connector e DB9 Male to DB9 Male Sony SMPTE 207M cable Item Number CA190 This cable allows any Sealevel RS 422 adapter with a DB 9 to connect directly to a Sony or compatible 207M 9 Pin connector Sealevel Systems Inc 2 SIO 485 LPCI User Manual Software Installation Windows 95 98 ME NT 2000 XP Do not install the Adapter in the machine until the software has been fully installed 1 Start Windows 2 Insert the
16. ilto supportO sealevel com O Sealevel Systems Inc siil SI0 485 LPCI User Manual Appendix B How To Get Assistance Begin by reading through the Trouble Shooting Guide in Appendix A If assistance 1s still needed please see below When calling for technical assistance please have your user manual and current adapter settings If possible please have the adapter installed in a computer ready to run diagnostics Sealevel Systems provides an FAQ section on its web site Please refer to this to answer many common questions This section can be found at http www sealevel com faq asp Sealevel Systems maintains a Home page on the Internet Our home page address is http www sealevel com The latest software updates and newest manuals are available via our FTP site that can be accessed from our home page Technical support is available Monday to Friday from 8 00 a m to 5 00 p m eastern time Technical support can be reached at 864 843 4343 RETURN AUTHORIZATION MUST BE OBTAINED FROM SEALEVEL SYSTEMS BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED AUTHORIZATION CAN BE OBTAINED BY CALLING SEALEVEL SYSTEMS AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION RMA NUMBER Sealevel Sysiems Inc sie SI0 485 LPCI User Manual Appendix C Electrical Interface RS 422 The RS 422 specification defines the electrical characteristics of balanced voltage digital interface circuits RS 422 is a differential interface that defines volta
17. n authorization must be obtained from Sealevel Systems before returned merchandise will be accepted Authorization is obtained by calling Sealevel Systems and requesting a Return Merchandise Authorization RMA number The Customer agrees to insure the Product or assume the risk of loss or damage in transit to prepay shipping charges to Sealevel and to use the original shipping container or equivalent Warranty is valid only for original purchaser and is not transferable Sealevel Systems assumes no liability for any damages lost profits lost savings or any other incidental or consequential damage resulting from the use misuse of or inability to use this product Sealevel Systems will not be liable for any claim made by any other related party This warranty applies to Sealevel manufactured Product Product purchased through Sealevel but manufactured by a third party will retain the original manufacturer s warranty Sealevel Systems Inc 2779 Greenville Highway P O Box 830 Liberty SC 29657 USA 864 843 4343 www sealevel com FAX 864 843 3067 email support sealevel com Technical Support is available Monday Friday from 8 a m to 5 p m Eastern time Sealevel Sysiems Inc 217 SI0 485 LPCI User Manual Trademarks Sealevel Systems Incorporated acknowledges that all trademarks referenced in this manual are the service mark trademark or registered trademark of the respective company Sealevel Systems In
18. omatically suppresses this Echo Clock Modes The SIO 485 LPCI utilizes a 14 7456 MHz oscillator This is eight times faster than the standard COM port oscillator which typically is 1 8432 MHz This allows the adapter to achieve a maximum data rate of 921 6Kbps The following sections outline the baud rate calculations and instructions for achieving your desired baud rate Sealevel Systems Inc SI0 485 LPCI User Manual Baud Rates and Oscillator value The following table shows some common data rates and the rates you should choose to achieve them when using the SIO 485 LPCI If the O S of choice is Windows 95 98 ME 2000 NT XP the oscillator value 14 7456 MHz should be entered into the Advanced Tab on 95 98 Me 2000 XP Device Manager applet Typically this is done automatically when the Sealevel Software driver is loaded When using Windows NT the Advanced Ports applet in the Control Panel should be launched and the oscillator value entered manually in the Advanced tab or all data rates will be eight 8 times the selected rate For example if a data rate of 19 2Kbps is selected the actual data rate will be 153 6Kbps When using any other OS i e Linux the following table should be used For this Data Rate Choose this Data Rate 1200 bps 150 bps 2400 bps 300 bps 4800 bps 600 bps 9600 bps 1200 bps 19 2K bps 2400 bps 38 4K bps 4800 bps 57 6K bps 7200 bps 76 8K bps 9600 bps
19. or 9 bit protocol and isochronous mode RS 422 provides excellent communications for long distance device connections up to 4000ft where noise immunity and high data integrity are essential RS 485 is optimized for Multi Drop or Party line operations selecting data from multiple peripherals as many as 31 devices can be connected on an RS 485 bus The SIO 485 LPCI is designed to be used with a variety of Operating Systems including Windows 98 NT ME 2000 XP Linux and DOS The SeaCOM API Application Programmer Interface included on CD with the SIO 485 LPCI provides a variety of useful high level function calls implemented as a Windows dynamic link library DLL and as a Linux kernel module and library In addition to the API SeaCOM includes sample code and utilities to simplify software development Other Sealevel Low Profile PCI Serial I O Products COMM 850 LPCI P N 7104 1 Port RS 232 Ultra 530 LPCI P N 7106 1 Port RS 232 422 485 Ultra COMM I LPCI P N 7108 1 Port Isolated RS 232 422 485 Ultra COMM 2 LPCI P N 7205 2 Port RS 232 422 485 COMM 4 LPCI P N 7406 4 Port RS 232 COMM 8 LPCI P N 7803 8 Port RS 232 Sealevel Systems Inc 1 SI0 485 LPCI User Manual Before You Get Started What s Included The SIO 485 LPCI is shipped with the following items If any of these items is missing or damaged please contact Sealevel for replacement e SIO 485 LPCI Adapter e 7107 includes low prof
20. uable information on installing your adapter in the various Linux releases Also in this sub directory is the Linux SerialHOWTO This series of files explains typical Linux serial implementations as well as informing the user to Linux syntax and preferred practices 3rd Party Software Support Third party software support for many HMI MMI and other process control software is included on the product installation CD For the most up to date information on third party software support please visit http www sealevel com thirdpartysoftware asp Sealevel Systems Inc 3 SI0 485 LPCI User Manual Physical Installation The adapter can be installed in any PCI expansion slot Do not install the Adapter in the machine until the software has been fully installed 1 Turn off PC power Disconnect the power cord 2 Remove the PC case cover 3 Locate an available PCI slot and remove the blank metal slot cover 4 Gently insert the PCI adapter into the slot Make sure that the adapter is seated properly 5 Replace the screw This is required to ensure FCC Part 15 compliance 6 Replace the cover 7 Connect the power cord 8 Installation is finished The SIO 485 LPCI is now ready for use Physical Connection RS 422 Ground Transmit Data Positive Output Len Transmit Data Negative en Output Receive Data Negative PE a 5V 12V Power selected by El fe ee leone RS 485 Sealevel Systems Inc 4 SI0 485 LPCI
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