136 Rockwell Automation Publication 1769-UM011H-EN-P - April 2012
Appendix A Status Indicators
EtherNet/IP Indicators
The EtherNet/IP indicators are only on 1769-L32E and 1769-L35E controllers.
Module Status (MS) Indicator
Network Status (NS) Indicator
Link Status (LNK) Indicator
Indicator Condition Recommended Action
Off The controller does not have power. Check the controller power supply.
Flashing green The port is in standby mode; it does not have an IP address and is operating
in BOOTP mode.
Verify that the BOOTP server is running.
Steady green The port is operating correctly. Normal operation - No action is required.
Steady red The controller is holding the port in reset or the controller has faulted. 1. Clear the controller fault.
2. If the fault will not clear, replace the controller.
The port is performing its power-up self test. Normal operation - No action is required.
A nonrecoverable fault has occurred. 1. Cycle power to the controller.
2. If the fault will not clear, replace the controller.
Flashing red The port firmware is being updated. Normal operation - No action is required.
Indicator Condition Recommended Action
Off The port is not initialized; it does not have an IP address and is operating in
BOOTP mode.
Verify that the BOOTP server is running.
Flashing green The port has an IP address, but no CIP connections are established. • If no connections are configured, no action is required.
• If connections are configured, check connection originator for connection
error code.
Steady green The port has an IP address and CIP connections (Class 1 or Class 3) are
established.
Normal operation - No action is required.
Steady red The port has detected that the assigned IP address is already in use. Verify that all IP addresses are unique.
Flashing red/green The port is performing its power-up self test. Normal operation - No action is required.
Indicator Condition Recommended Action
Off The port is not connected to a powered Ethernet device. Therefore, the port
cannot communicate on Ethernet.
1. Verify that all Ethernet cables are connected.
2. Verify that Ethernet switch is powered.
Flashing green The port is performing its power-up self-test.
Normal operation - No action is required.
The port is communicating on Ethernet.
Steady green The port is connected to a powered Ethernet device. Therefore, the port can
communicate on Ethernet.
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