F017
Adapter Not Available to Module
Allen-Bradley · Logix and SLC PLC
What does F017 mean?
This error indicates that the 1771 adapter is not available to communicate with the modules within the 1771 rack. This could imply a problem with the backplane communication or the adapter's internal state.
Common Causes
- 1771 adapter module hardware failure.
- Issues with the 1771 backplane power or data bus.
- Incorrect seating of the module within the rack.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Inspect the 1771 adapter for proper seating and secure connection within the 1771 rack backplane.
- 2
Verify the power supply voltage to the 1771 rack and the 1771 adapter, ensuring it meets the manufacturer's specified nominal voltage.
- 3
Check the diagnostic LEDs on the 1771 adapter for any error codes or abnormal status indications.
- 4
Inspect the 1771 backplane connectors and the module card edge connectors for signs of damage, dirt, or corrosion.
Verified technical data. Last updated: March 2026
Related Faults
Source: Allen-Bradley Logix and SLC PLC