Mitsubishi Electric · MELSEC Q-series MELSECNET/H
A SEND instruction was executed with a target network or station number configured for a remote I/O station, which is an invalid operation for a SEND instruction.
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Review the target network number and target station number specified in the request control block of the SEND/RECV instructions
Ensure the SEND instruction targets a valid station type, not a remote I/O station