F107

Baton Pass Error (Baton Lost)

Mitsubishi Electric · MELSEC Q-series MELSECNET/H

What does F107 mean?

The network's baton pass mechanism has failed, resulting in a lost baton. This prevents proper communication and data exchange across the network.

Common Causes

  • Faulty network cable
  • Uninstalled terminating resistor on the network line
  • One or more network stations are not powered on

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the entire network line for any faulty cables or physical damage

  2. 2

    Verify the correct installation and integrity of all terminating resistors on the network bus

  3. 3

    Confirm that all stations connected to the network are properly powered on

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Verified technical data. Last updated: March 2026

Related Faults

Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H