Rockwell Automation Publication 1769-UM021I-EN-P - May 2018 309
Troubleshoot the Module Appendix A
Table 41 - Force State (FORCE) Status Indicator
Status Description
Off No tags contain I/O force values. I/O forces are inactive (disabled).
Yellow I/O forces are active (enabled). I/O force values can exist.
Flashing yellow One or more input or output addresses have been forced to an On or Off condition,
but the forces have not been enabled.
Table 42 - I/O State (I/O) Status Indicator
Status Description
Off One of the following conditions exists:
• There are no devices in the I/O configuration of the controller. - Applies to only
CompactLogix 5370 L3 controllers.
• The controller does not contain a project.
Green The controller is communicating with all devices in its I/O configuration.
Flashing green One or more devices in the I/O configuration of the controller are not responding.
Flashing red One of the following conditions exists:
• The controller is not communicating with any devices.
• A fault has occurred on the controller. - Only CompactLogix 5370 L1 and L2
controllers.
Table 43 - Controller Status (OK) Status Indicator
Status Description
Off No power is applied.
Green The controller is OK.
Flashing green The controller is storing a project to or loading a project from the SD card.
Red The controller detected a nonrecoverable major fault and cleared the project
from memory.
Flashing red One of the following:
• The controller requires a firmware update.
• A major recoverable fault occurred on the controller.
• A nonrecoverable major fault occurred on the controller and cleared the program
from memory.
• A controller firmware update is in process.
• An embedded I/O module firmware update is in process. - Only CompactLogix
5370 L1 controllers.
Dim green to red Save to Flash at power-down.
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