Rockwell Automation Publication 1769-UM021I-EN-P - May 2018 305
Appendix A
Troubleshoot the Module
This section explains how to interpret the status indicators on your
CompactLogixâ„¢ 5370 controllers. All controllers use the status indicators that
are described in this table.
Use Logix Designer
Application for
Troubleshooting
The Logix Designer application indicates fault conditions in the following
ways:
•Warning signal
• Message
• Notification in the tag editor
Status Indicator Description
RUN Indicates the operating mode of the controller.
FORCE Indicates the force state.
I/O Indicates the current state of communication between the controller and I/O
modules.
OK Indicates the state of the controller.
NS Indicates the EtherNet/IP network status regarding the controller operating on the
network.
LINK 1 Indicates the EtherNet/IP link status for port 1 if the controller.
LINK 2 Indicates the EtherNet/IP link status for port 2 of the controller.
SD Indicates if there is activity on the SD card.
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