Rockwell Automation Publication 842E-UM001C-EN-P - September 2016 65
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 status indicator shows the device status. The Net status indicator
shows the status of the CIP connection. The Encoder status indicator shows
the status of the internal measuring device in the 842E EtherNet/IP encoder.
Five status indicators provide status information on the back of the encoder.
The figure shows their location and the tables describe their status.
Figure 1 -
Read the status indicators 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.
Status Indicator Net Description
OFF No power
or
No IP address
Green blinking No connection
The device has an IP address but no CIP connection.
Green The device has an IP address and a CIP connection.
Net
Encoder
Mod
Link 1
Screw Cover
Link 2
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