Rockwell Automation 842E EtherNet/IP Absolute Encoder User Manual - Manual (Page 51)

Rockwell Automation Publication 842E-UM001A-EN-P May 2012 43
Chapter
7
Diagnostics and troubleshooting
This chapter describes the diagnostic process to correct and clear fault conditions
on the 842E encoder.
Status indicators The Mod LED shows the device status, the Net LED shows the status of the CIP
connection, and the Encoder LED shows the status of the internal measuring
device in the 842E EtherNet/IP encoder.
Five LED indicators provide status information on the back of the encoder. The
figure below shows their location and the tables below describe their status.
Read the LEDs according to the following tables.
ATTENTION
Cease operation if the cause of the malfunction has not been identified!
Stop the machine if you cannot clearly identify the error and/or if you cannot
safely rectify the malfunction.
LED Net Description
OFF No power
or
No IP address
Green flashing No connection
The device has an IP address but no CIP connection.
Green The device has an IP address and a CIP connection.
Net
Mod
Link 1
Screw cover
Encoder
Link 2