F7C2
Target Station Channel In Use
Mitsubishi Electric · MELSEC Q-series MELSECNET/H
What does F7C2 mean?
The target station's communication channel is currently in use, preventing the execution of a SEND instruction. This means the target channel is busy processing other requests.
Common Causes
- Multiple SEND instructions are being sent to the same channel of the target station from either the host or other stations concurrently
Repair Steps & Checklist
Click steps to track your progress.
- 1
Retry the SEND instruction after a short interval, allowing the target channel to become free
- 2
Investigate if multiple instructions from the host or other stations are simultaneously targeting the same channel on the target station and adjust timing
Verified technical data. Last updated: March 2026
Related Faults
Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H