Related Manuals for Acces I/O products PCI-ICM-2S
Summary of Contents for Acces I/O products PCI-ICM-2S
- Page 1 (217) 352-9330 | Click HERE Find the Acces PCI-ICM-2S at our website:...
- Page 2 10623 Roselle Street, San Diego, CA 92121 • (858) 550-9559 • FAX (858) 550-7322 contactus@accesio.com • www.accesio.com MODEL PCI-ICM-2S USER MANUAL FILE: MPCI-ICM-2S.A1b...
- Page 3 ACCES, 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 2000, 2005 by ACCES I/O Products Inc, 10623 Roselle Street, San Diego, CA 92121. All rights reserved. WARNING!! ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE COMPUTER POWER OFF.
- Page 4 Other than the above, no other warranty, expressed or implied, shall apply to any and all such equipment furnished or sold by ACCES. Manual PCI-ICM-2S...
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Page 5: Table Of Contents
Table 5-1: Baud Rate Divisor Values....................... 14 Chapter 6: Connector Pin Assignments ......................17 Table 6-1: Connector Pin Assignments ......................17 Appendix A: Application Considerations......................18 Table A-1: RS422 Specification Summary ...................... 18 Figure A-1: Typical RS485 Two-Wire Multidrop Network ................19 Manual PCI-ICM-2S... -
Page 6: Chapter 1: Introduction
Half-Duplex allows traffic to travel in both directions, but only one way at a time. In Full-Duplex operation, data travels in both directions at the same time. RS485 communications use the half-duplex mode because only a single pair of wires need to be used and installation costs are dramatically reduced. Manual PCI-ICM-2S... - Page 7 32 drivers and receivers allowed on line. Serial communications ACE used is type 16550. Driver/Receivers used are type 75176. • Receiver Input Sensitivity: +200 mV, differential input. • Common Mode Rejection: +12V to -7V • Transmitter Output Drive Capability: 60 mA. Manual PCI-ICM-2S...
- Page 8 • Power Required: +5VDC at 125 mA typical, +12VDC at 5 mA typical, 685 mW total power consumption. • Size: 6 1/2" long (165 mm) by 3 7/8" (98 mm). Figure 1-1: Block Diagram(Only one serial channel shown) Manual PCI-ICM-2S...
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Page 9: Chapter 2: Installation
Caution! * ESD A single static discharge can damage your card and cause premature failure! Please follow all reasonable precautions to prevent a static discharge such as grounding yourself by touching any grounded surface prior to touching the card. Manual PCI-ICM-2S... - Page 10 Also, proper EMI cabling techniques (cable connect to chassis ground at the aperture, shielded twisted-pair wiring, etc) be used for the input/output wiring. Manual PCI-ICM-2S...
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Page 11: Chapter 3: Option Selection
Jumpers Card 1 Card 2 Simplex 2-wire Receive Only Rx+ 9 Rx- 1 Simplex 2-wire Transmit Only Tx+ 2 Tx- 3 Half-Duplex 2-wire TRx+ 2 TRx- 3 Full Duplex 4-wire Tx+ 2 Tx- 3 Rx+ 9 Rx- 1 Manual PCI-ICM-2S... - Page 12 Figure 3-1: Option Selection Map Jumpers RS422: Select differential(RS-422, four-wire) communications mode RS485-A, RS485-B: Select differential(RS-485, two-wire) communications mode LDO: Apply load to RS-422 or RS-485 output LDI: Apply load to RS-422 input X1/X4: Select either 115.2 Kbaud or 460.8 Kbaud maximum Manual PCI-ICM-2S...
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Page 13: Chapter 4: Address Selection
The Vendor ID code for this card is 494F (ASCII for "I/O"). The Device ID code for the card is 1150 PCI supports 64 K of address space, so your card's addresses may be located anywhere in the 0000 to FFF8 hex range. Manual PCI-ICM-2S... -
Page 14: Chapter 5: Programming
You then load the divisor into Base Address +0 (low byte) and Base Address +1 (high byte). The following equation defines the relaionship between baud rate and divisor: Desired Baud Rate = (UART clock frequency) ÷ (32 divisor) Manual PCI-ICM-2S... - Page 15 (Note: When operating in the automatic RS485 mode, the state of this bit is not significant.) Bits 2 and 3 are user-designated outputs. Bit 2 may be ignored on this card. Bit 3 is used to enable interrupts and should be set high if an interrupt-driven receiver is to be used. Manual PCI-ICM-2S...
- Page 16 After all data has been transmitted, the RTS bit should be reset by writing a 0 to Bit 1 of the Modem Control Register. Manual PCI-ICM-2S...
- Page 17 /*Reset RTS bit without altering states of other bits*/ Caution The OUT2 bit of the UART must be set low for proper interrupt driven communication. This bit enables or disables the interrupts and the card will not communicate if the bit is pulled high. Manual PCI-ICM-2S...
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Page 18: Chapter 6: Connector Pin Assignments
Table 6-1: Connector Pin Assignments Note If connections are to be made to a CE-marked version, then CE-certifiable cabling and breakout methodology (Cable shields connected to ground at the mounting bracket shielded twisted-pair wiring, etc) must be used. Manual PCI-ICM-2S... -
Page 19: Appendix A: Application Considerations
(The exception is when the line is driven by an RS422 driver that is never "tristated" or disconnected from the line. In this case, the driver provides a low internal impedance that terminates the line at that end.) Manual PCI-ICM-2S... - Page 20 Note You do not have to add a terminator resistor to your cables when you use the PCI-ICM-2S card. Termination resistors for the RX+ and RX- lines are provided on the card and are placed in the circuit when you install the termination jumpers. Moreover, installing the BIAS jumpers properly biases these lines.
- Page 21 This has advantages in equipment that uses mixed protocol communications. Since the slave nodes never listen to another slave's response to the master, a slave node cannot reply incorrectly. Manual PCI-ICM-2S...
- Page 22 If you experience any problems with this manual or just want to give us some feedback, please email us at: manuals@accesio.com. Please detail any errors you find and include your mailing address so that we can send you any manual updates. 10623 Roselle Street, San Diego CA 92121 Tel. (858)550-9559 FAX (858)550-7322 www.accesio.com Manual PCI-ICM-2S...