F707
Invalid Number of Relay Stations
Mitsubishi Electric · MELSEC Q-series MELSECNET/H
What does F707 mean?
The number of relay stations specified for a transmission is outside the permissible range or 8 or more relay destination stations were specified. This is a system configuration error.
Common Causes
- Number of relay stations is out of the allowed range
- 8 or more stations were specified as relay destinations
Repair Steps & Checklist
Click steps to track your progress.
- 1
Adjust the system configuration to set the number of relay stations to which data can be sent within the valid limit (implied to be less than 8)
- 2
Review the entire network system architecture for excessive relay station usage
Verified technical data. Last updated: March 2026
Related Faults
Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H