1432
MULTI-C.BUS ERR.
Mitsubishi Electric · MELSEC System Q/L Series
What does 1432 mean?
A communication timeout with another CPU is detected in the Multiple CPU high speed bus. This means that a CPU module failed to respond within an expected timeframe during communication on the high-speed bus, indicating a delay or disconnection.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Reset the CPU module and RUN it again. If the same error is displayed again, the CPU module has hardware failure.
Verified technical data. Last updated: March 2026
Related Faults
Source: Mitsubishi Electric MELSEC System Q/L Series