What causes fault code AB-F010 (Point I/O Adapter Communication Loss)?

Ethernet cable disconnected at adapter or switch. Switch port failure. Adapter IP address changed or conflicts. Power supply to Point I/O rack failed. RPI too aggressive for network load

How do I fix fault code AB-F010?

Check Ethernet cable link LED at adapter — must be solid green. Verify adapter power — module status LED should be green. Ping adapter IP from laptop on same network segment. Check for IP conflicts using RSLinx network browse. If on DLR ring, check ring status for open ring condition. Increase RPI if network is heavily loaded

Point I/O Adapter Communication Loss

AB-F010

1734 Point I/O adapter lost communication with the ControlLogix/CompactLogix processor over EtherNet/IP.

high allen-bradley

allen-bradley point io 1734 ethernet adapter

Probable Causes (ranked)

Ethernet cable disconnected at adapter or switch
Switch port failure
Adapter IP address changed or conflicts
Power supply to Point I/O rack failed
RPI too aggressive for network load

Fix Steps

1 Check Ethernet cable link LED at adapter — must be solid green
2 Verify adapter power — module status LED should be green
3 Ping adapter IP from laptop on same network segment
4 Check for IP conflicts using RSLinx network browse
5 If on DLR ring, check ring status for open ring condition
6 Increase RPI if network is heavily loaded

Field Trick

The LINK led on the 1734-AENT adapter tells you everything. Green solid = cable good. Off = cable or switch issue. Flashing = traffic but no controller connection.

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