Troubleshooting steps
Check I/O module status verify wiring check module addressing
Siemens PLC
86AF – I/O error
I/O module error detected
Details
I/O module error 86AF. Check I/O modules and connections.
Error typeerror
MeaningI/O error
Typical causesI/O module fault wiring fault addressing error
SolutionsCheck I/O module status verify wiring check module addressing
Severitymedium
Catalog references
Vendor Information
Siemens86AF
Utilities
Troubleshooting Steps
Related
Related Siemens PLC Codes
FAQ
Common questions
Which module has the error?
Check diagnostic buffer or module status LEDs
Community
Discussion & Experiences
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