Command Execution Failure; PLC-3 Histogram Overflow
Allen-Bradley · Logix and SLC PLC
What does F014 mean?
This fault signifies a general command execution failure, specifically highlighting a PLC-3 histogram overflow. This indicates an issue with data collection exceeding buffer limits within a PLC-3 system, preventing the command from completing.
Common Causes
- Data collection parameters exceeding the PLC-3's histogram buffer capacity.
- PLC-3 processor internal execution error preventing command completion.
- Legacy PLC-3 system limitations encountering high data rates.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify PLC CPU and memory utilization to identify potential resource exhaustion.
- 2
Inspect PLC diagnostic buffers and error logs for additional related faults or warnings that may provide context.
- 3
Review the PLC-3 histogram configuration parameters, such as buffer size, sampling rate, and trigger conditions, for misconfiguration.
- 4
Check network traffic and communication load on the PLC-3's network interface to identify potential overload sources contributing to data overflow.