What to do if the COM. LED is flashing slowly on my Panasonic Controller?
- AAshley AndersonJul 27, 2025
If the COM. LED on your Panasonic Controller is flashing slowly, it indicates that remote I/O control has been terminated due to a communications error or disconnection. Check the POWER LED and power supply wiring of the slave station. Also, inspect the wiring and look for any looseness of terminal screws, and verify the transmission cable for correct wiring.