Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
153
Appendix
C
Troubleshoot Your System
Understand the Controller
Status Indicators
The MicroLogix 1400 provides three groups of status indicators:
•
the LED status indicators on the top of the controller,
•
the status indicators on the LCD
•
the I/O status indicators on the LCD.
Together they provide a mechanism to determine the current status of the
controller if a programming device is not present or available.
Controller Status Indicators
Figure 67 - Controller Status Indicator Location
Topic
Page
Understand the Controller Status Indicators
Controller Error Recovery Model
Contact Rockwell Automation for Assistance
Controller Status Indicators
Status Indicator
Color
Indicates
POWER
Off
No input power, or power error condition
Green
Power on
RUN
Off
Not executing the user program
Green
Executing the user program in run mode
Green flashing
Memory module transfer occurring
FAULT
Off
No fault detected
Red flashing
Application fault detected
Red
Controller hardware faulted
FORCE
Off
No forces installed
Amber
Forces installed
Amber flashing
Forces installed in force files but forcing is disabled.
POWER
RUN
FAULT
FORCE
1400
Summary of Contents for 1766-L32AWA
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