Rockwell Automation 1738-SSIM23 ArmorPoint I/O SSI Absolute Encoder Module, Series A - Manual (Page 9)

Publication 1738-IN013A-EN-E - June 2004
ArmorPoint I/O Synchronous Serial Interface (SSI) Absolute Encoder Module, Series A 9
Message Size: 2 Bytes
Troubleshoot with
the Indicators
Byte Bit Description
Consume 0 7 6 5 4 3 2 1 0 Master ACK Byte 1
RES RES RES SCMP2 SCMP1 CC2 CC1 LACK
Consume 1 7 6 5 4 3 2 1 0 CONS1
RES RES RES RES RES RES RES RES
1 The master must provide the Master ACK Byte in order to receive the polled Produced bytes 0-9.
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
RUN
UP
DOWN
COMP
MOD
NET
1738-SSIM23/A
SSI Encoder
1
Module Status Indicators
43814
1738-SSIM23
Network Status Indicators
I/O Status Indicators