F7C7
Host Station Number as Target
Mitsubishi Electric · MELSEC Q-series MELSECNET/H
What does F7C7 mean?
The host station's own station number has been specified as the target station number in a communication instruction. This creates a self-targeting loop error.
Common Causes
- Incorrect configuration of the target station number, where it matches the host station's own number
Repair Steps & Checklist
Click steps to track your progress.
- 1
Modify the target station number to be a different value than the host station's own number
Verified technical data. Last updated: March 2026
Related Faults
Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H