Related Manuals for SeaLevel SIO4-104.485
Summary of Contents for SeaLevel SIO4-104.485
- Page 1 SIO4-104.485 User Manual | 3543 © Sealevel Systems, Inc. 3543 Manual | SL9119 9/2022...
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Page 2: Table Of Contents
APPENDIX B – HOW TO GET ASSISTANCE ..................... 16 APPENDIX C – ELECTRICAL INTERFACE ......................17 APPENDIX D – ASYNCHRONOUS COMMUNICATIONS .................. 17 APPENDIX E – SILK SCREEN – 3542 PCB ....................... 19 WARRANTY ................................ 20 © Sealevel Systems, Inc. 3543 Manual | SL9119 9/2022... -
Page 3: Introduction
Introduction The SIO4-104.485, Item Number 3543, is a PC/104 module that provides four, RS-422/485 serial interface ports. The board is designed using the XR16C554 UART, which provides a 16-byte FIFO. In addition to the standard XR16C554 UART, the XR16C854 (‘SE’ option) and the OX16C954 (‘SN’ option) are available. -
Page 4: Before You Get Started
Before You Get Started What’s Included The SIO4-104.485 is shipped with the following items. If any of these items is missing or damaged, please contact Sealevel for replacement. • SIO4-104.485 Adapter Advisory Conventions Warning The highest level of importance used to stress a condition where damage could result to the product, or the user could suffer serious injury. - Page 5 Sealevel RS-422 board with a DB9 Male connector. • DB9 Male to DB9 Male Sony 207M adapter 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.
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Page 6: Card Setup
‘M’. IRQ Selection The SIO4-104.485 has an interrupt selection jumper, which should be set prior to use, if an interrupt is required by your application software. Consult the user manual for the application software being used to determine the proper setting. - Page 7 Clock Modes The SIO4-104.485 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.
- Page 8 Electrical Interface Selection Each of the ports on the SIO4-104.485 can be individually configured as RS-422, or as a two wire RS-485 interface. This is a software selectable feature and is found at Base+15. To enable a port for RS-422, simply write a ‘0’...
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Page 9: Software Installation
If multiple SIO4-104.485 adapters are configured in an RS-485 network, only the boards on each end should have the termination in place. Contact Sealevel Technical Support if you have questions on how to remove this termination. - Page 10 3rd Party Software Support Third party software support for many HMI/MMI and other process control software is accessible through links on the Sealevel’s website. For the most up to date information on third party software support, please visit: https://www.sealevel.com/support/3rd-party-software-support/. For additional software support, including QNX, please call Sealevel Systems’ Technical Support, (864) 843- 4343.
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Page 11: Physical Installation
Physical Installation Extreme care should be taken when installing the SIO4-104.485 to avoid causing damage to the connectors. After the adapter is installed, connect your I/O cable to P4. Refer to Card Setup for information on setting the address and jumper options before inserting the SIO4-104.485 onto the stack. - Page 12 Physical Connection The port signals for the SIO4-104.485 are physically connected via a 40-pin box header. The following table shows connector P4’s pin-out. Port Signal Name RS-422 Signal Name RS-485 RX4+ DATA4+ RX4 - DATA4- TD4 - TD4+ GND4 GND4...
- Page 13 Available for use with the SIO4-104.485 are the CA228, the CA110/CA143, and the CA222/TB10 combination cables. These cables terminate the SIO4-104.485 40-pin header to four DB9M connectors. This termination provides the standard DB9 pin out for RS-232 (EIA/TIA574) in RS-232 mode. The following table illustrates the DB9 pin out when using any of these optional cables.
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Page 14: Electrical Characteristics
Operating: 0°C – 70°C Storage: -50°C – 105°C Power Requirements Supply line +5 VDC Rating 794 mA Physical Dimensions Board Length: 3.550 inches (9.017 cm) Board Height: 3.775 inches (9.589 cm) © Sealevel Systems, Inc. 3543 Manual | SL9119 9/2022... -
Page 15: Appendix A - Troubleshooting
No two adapters can occupy the same I/O address. Try the Sealevel Systems adapter with a unique IRQ. While the Sealevel Systems adapter does allow the sharing of IRQs, many other adapters (i.e., SCSI adapters & on-board serial ports) do not. -
Page 16: Appendix B - How To Get Assistance
If possible, please have the adapter installed in a computer ready to run diagnostics. 3. 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. -
Page 17: Appendix C - Electrical Interface
(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. 3543 Manual | SL9119 9/2022... -
Page 18: Appendix D - Asynchronous Communications
The communication parameters are baud rate, parity, number of data bits per character, and stop bits (i.e.,9600,N,8,1). © Sealevel Systems, Inc. 3543 Manual | SL9119 9/2022... -
Page 19: Appendix E - Silk Screen - 3542 Pcb
Appendix E – Silk Screen – 3543 PCB © Sealevel Systems, Inc. 3543 Manual | SL9119 9/2022... -
Page 20: Warranty
Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured I/O 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.