Troubleshooting steps
Check battery backup clear retentive data restore from backup
Siemens PLC
80A1 – Memory error
Memory error in retentive data area
Details
Memory error occurred in the retentive data area. Data integrity may be compromised.
Error typeerror
MeaningRetentive memory error
Typical causesMemory corruption in retentive data area battery failure
SolutionsCheck battery backup clear retentive data restore from backup
Severityhigh
Catalog references
Vendor Information
Siemens80A1
Utilities
Troubleshooting Steps
Related
Related Siemens PLC Codes
FAQ
Common questions
Will I lose my data?
Retentive data may be lost. Backup is recommended before clearing.