Troubleshooting steps
Reduce program size optimize memory usage upgrade CPU firmware restart CPU
Siemens PLC
80A0 – Memory error
Memory allocation error
Details
Internal memory allocation failed during program execution. The CPU cannot allocate sufficient memory for program execution.
Error typeerror
MeaningMemory allocation error
Typical causesProgram size exceeds available memory or memory fragmentation
SolutionsReduce program size optimize memory usage upgrade CPU firmware restart CPU
Severityhigh
Catalog references
Vendor Information
Siemens80A0
Utilities
Troubleshooting Steps
Related
Related Siemens PLC Codes
FAQ
Common questions
Can I recover without restarting?
Usually requires CPU restart to clear memory allocation tables