Appendix A. Troubleshooting; Appendix A.1. Check Wiring And Settings - Unitronics GW-BAC1 User Manual

Bacnet gateway for interfacing unitronics plcs to building automation systems: bacnet ms/tp, bacnet/ip, modbus/tcp.
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Unitronics's BACnet Gateway User Guide
Appendix A.
Troubleshooting
Appendix A.1.
Check Wiring and Settings
If Tx/Rx are not flashing rapidly then there is a COM issue on the Modbus side and you need to check the
following things:
o
Visual observations of LEDs on GW-BAC1. (‎ A ppendix A.3)
o
Check baud rate, parity, data bits, stop bits
o
Check Modbus device address
o
Verify wiring
Field COM problems:
o
Visual observations of LEDs on GW-BAC1. (‎ A ppendix A.3)
o
Visual dipswitch settings (using correct baud rate and device instance)
o
Verify IP address setting
o
Verify wiring
If the problem still exists, a Diagnostic Capture needs to be taken and sent to Unitronics technical support.
( Appendix A.2)
Unitronics
Page 23 of 28

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