F7C6

Channel Number Out of Range

Mitsubishi Electric · MELSEC Q-series MELSECNET/H

What does F7C6 mean?

The channel number configured for either the host or target station is outside the permissible setting range of 1 to 64. This prevents proper channel assignment.

Common Causes

  • Channel numbers for host or target stations are set outside the range of 1 to 64

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Set the channel numbers for both the host station and the target station to a value within the range of 1 to 64

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Verified technical data. Last updated: March 2026

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Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H