18 Rockwell Automation Publication ICSTT-RM406J-EN-P - February 2021
Chapter 2 Preventive Maintenance
Status Indicators on the 94xx Series Input and Output Module
Table 3 - Status Indicators on the 94xx Series Input and Output Module
Indicator Status Description
Healthy
OFF No power.
GREEN No module faults present.
RED
The module has one or more faults.
• The Healthy indicator can turn RED immediately after power is applied to
the module, before then turning GREEN
• If Healthy is GREEN and the Ready and Run are RED then the module is
said to be in its "shutdown state" refer to the Troubleshooting Manual -
Chapter 3 for more information on the shutdown state.
Ready
OFF No power or module is unlocked.
GREEN Locked and prepared to report channel values.
RED Locked but not prepared to report channel values.
Run
OFF No power or module is unlocked.
GREEN Module is on-line and supplying data to/receiving data from application
AMBER
Module is inserted into a running system but not on-line. Push the Fault
Reset button on any processor module to set the module to go on-line.
RED Module is prepared to go on-line but no application is running.
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