F114
Send Failure (Recurring)
Mitsubishi Electric · MELSEC Q-series MELSECNET/H
What does F114 mean?
A send failure has occurred, and the error recurred even after a retry. This suggests a persistent issue with the physical network or addressing scheme, preventing successful data transmission.
Common Causes
- Faulty network cables or incorrect wirings
- Faulty network hardware
- Electrical noise
- Absence of terminating resistors (in bus networks)
- Duplication of station numbers or control/remote master stations
Repair Steps & Checklist
Click steps to track your progress.
- 1
Inspect network cables for damage, incorrect wiring, or loose connections
- 2
Verify the presence and correct installation of terminating resistors, if applicable (bus networks)
- 3
Check for sources of electrical noise
- 4
Confirm all station numbers are unique and control/remote master station settings are not duplicated
- 5
Check for faulty network hardware
Verified technical data. Last updated: March 2026
Related Faults
Source: Mitsubishi Electric MELSEC Q-series MELSECNET/H