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. 1

    Inspect the 1771 adapter for proper seating and secure connection within the 1771 rack backplane.

  2. 2

    Verify the power supply voltage to the 1771 rack and the 1771 adapter, ensuring it meets the manufacturer's specified nominal voltage.

  3. 3

    Check the diagnostic LEDs on the 1771 adapter for any error codes or abnormal status indications.

  4. 4

    Inspect the 1771 backplane connectors and the module card edge connectors for signs of damage, dirt, or corrosion.

Browse all codes in this manual (39)
Verified technical data. Last updated: March 2026

Related Faults

Source: Allen-Bradley Logix and SLC PLC