Mitsubishi Electric · MELSEC Q-series MELSECNET/H
The target station's communication channel is currently in use, preventing the execution of a SEND instruction. This means the target channel is busy processing other requests.
Click steps to track your progress.
Retry the SEND instruction after a short interval, allowing the target channel to become free
Investigate if multiple instructions from the host or other stations are simultaneously targeting the same channel on the target station and adjust timing