Mitsubishi Electric · MELSEC Q-series MELSECNET/H
A send failure has occurred, and the error recurred even after a retry. This suggests a persistent issue with the physical network or addressing scheme, preventing successful data transmission.
Click steps to track your progress.
Inspect network cables for damage, incorrect wiring, or loose connections
Verify the presence and correct installation of terminating resistors, if applicable (bus networks)
Check for sources of electrical noise
Confirm all station numbers are unique and control/remote master station settings are not duplicated
Check for faulty network hardware