Troubleshooting steps
Check wiring verify signal range test sensor replace module if needed
Siemens PLC
86A1 – I/O error
Analog input error
Details
Analog input module has detected a fault or value out of range.
Error typeerror
MeaningAnalog input error
Typical causesWiring fault signal out of range sensor failure module defective
SolutionsCheck wiring verify signal range test sensor replace module if needed
Severitymedium
Catalog references
Vendor Information
Siemens86A1
Utilities
Troubleshooting Steps
Related
Related Siemens PLC Codes
FAQ
Common questions
What causes out of range?
Wiring issues sensor failure power supply problems or module calibration errors.