Troubleshooting steps
Check diagnostic buffer verify module connections review memory diagnostics
Siemens PLC
80B5 – Memory/Module error
Memory or module error detected
Details
Memory or module error 80B5. Check system memory and expansion modules.
Error typeerror
MeaningMemory/Module error
Typical causesMemory fault module fault hardware fault
SolutionsCheck diagnostic buffer verify module connections review memory diagnostics
Severityhigh
Catalog references
Vendor Information
Siemens80B5
Utilities
Troubleshooting Steps
Related
Related Siemens PLC Codes
FAQ
Common questions
Where do I find diagnostics?
Use TIA Portal diagnostic buffer to view error details
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Discussion & Experiences
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