Troubleshooting steps
Check PLC diagnostic files verify configuration review system status
Allen-Bradley PLC
30 – Memory fault
CPU memory fault detected
Details
CPU memory fault detected. Check PLC diagnostics and configuration.
Error typefault
MeaningMemory fault
Typical causesPLC fault communication fault configuration error
SolutionsCheck PLC diagnostic files verify configuration review system status
Severityhigh
Catalog references
Vendor Information
Allen-BradleyFault Code 30
Utilities
Troubleshooting Steps
Related
Related Allen-Bradley PLC Codes
FAQ
Common questions
Can I clear the fault?
Usually requires power cycle. Check diagnostic files first