Troubleshoot Your Module; Status Indicators For Input Modules - Allen-Bradley 1756-IA8D User Manual
Controllogix digital i/o modules
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- Installation instructions manual (16 pages)
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Status Indicators
for Input Modules
Troubleshoot Your Module
Topic
Status Indicators for Input Modules
Status Indicators for Output Modules
Use RSLogix 5000 Software for Troubleshooting
This appendix describes the status indicators on the ControlLogix digital
modules and how to use them to troubleshoot the module. Each I/O module has
status indicators located on the front of the module.
ControlLogix input modules support the status indicators described in
below. The available status indicators vary by module catalog number, as shown
in
Figure 21 on page
Table 31 - Status Indicators for Input Modules
Indicator
Status
OK Status
Steady green
Flashing green
Steady red
Flashing red
I/O Status
Yellow
Fault Status
Red
Rockwell Automation Publication 1756-UM058G-EN-P - November 2012
178.
Description
The inputs are being multicast and in a normal operating state.
The module has passed internal diagnostics, but is not
multicasting inputs or is inhibited.
Uninhibit the connection or establish a connection to enable
communication to the module.
The module must be replaced.
Previously established communication has timed out.
Check the controller and chassis communication.
The input is On.
The input has encountered a fault.
Check the input point at the controller.
A
Appendix
Page
177
178
180
Table 31
177
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