F228

SEND Instruction to Remote I/O Station

Mitsubishi Electric · MELSEC Q-series MELSECNET/H

What does F228 mean?

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.

Common Causes

  • Incorrect target network number or target station number specified in the request control block of the SEND/RECV instructions, pointing to a remote I/O station

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Review the target network number and target station number specified in the request control block of the SEND/RECV instructions

  2. 2

    Ensure the SEND instruction targets a valid station type, not a remote I/O station

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Verified technical data. Last updated: March 2026

Related Faults

Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H