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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

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

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

F105Initial Status with Baton/Data Link IssueF106Control/Sub-control Station Shift StatusF107Baton Pass Error (Baton Lost)
Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H
Open Manual (Page 161)Search more codes in this manual