Mitsubishi Electric · MELSEC Q-series MELSECNET/H
A general send failure has occurred, and retrying the transmission did not resolve the issue. This indicates a persistent underlying problem in the communication path or station configuration.
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
Review network parameters and switch settings to ensure the corresponding station is properly configured
Check for faulty network hardware