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Publication 1790-IN009B-EN-P - April 2003
Troubleshoot with the Indicators
The base block has the following indicators:
•
module status
•
network status
•
I/O status
Mod/Net Status Indicator
LED Indicator:
Status:
Description:
Module Status
Solid Red
Unrecoverable fault in base block
Flashing Red
Unrecoverable fault in expansion unit
Solid Green
Normal operation - OK
Off
No power
LED Indicator:
Status:
Description:
Network Status
Solid Red
Unrecoverable communication fault
Flashing Red
Recoverable communication fault
Solid Green
Communication path complete - OK
Flashing Green
Communication path incomplete
I/O Status Indicators
Function:
LED Color:
Module Illumination:
Condition:
Outputs
Each output:
Green
None
Green
Output not energized
Output energized
Inputs
Each Input:
Green
None
Green
No valid input
Valid input
