Instruction Manual

20
Publication 1790-IN010B-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