Communicate with your module, Troubleshoot with the indicators – Rockwell Automation 1738-485ASCM12 ArmorPoint I/O RS-485 ASCII Module, Series A User Manual
Page 8
Publication 1738-IN010A-EN-E - June 2004
8 ArmorPoint I/O RS-485 ASCII Module, Series A
Communicate With
Your Module
The ASCII module operates as the PointBus front-end to your serial
device. Data can be exchanged with the master through a polled,
cyclic, or change of state connection. The module produces and
consumes 4 to 132 bytes of data.
Troubleshoot with
the Indicators
Indication
Probable Cause
Module Status
Off
No power applied to device
Green
Device operating normally
Flashing Green
Device needs commissioning due to missing, incomplete, or
incorrect configuration
Flashing Red
Recoverable fault
Red
Unrecoverable fault - may require device replacement
Flashing Red/Green
Device is in self-test
Indication
Probable Cause
Network Status
Off
Device is not on line:
- Device has not completed dup_MAC_ID-id test.
- Device not powered - check module status indicator.
Flashing Green
Device is on line but has no connections in the established state.
Green
Device is on line and has connections in the established state.
MOD
NET
TxD
RxD
1738-485ASCM12/A
ASCII Interface
Module Status Indicators
43801
1738-485ASCM12
Network Status Indicators
I/O Status Indicators
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