0023

STI ERROR

Allen-Bradley · MicroLogix 1400 Programmable Controllers

What does 0023 mean?

An error occurred in the Selectable Timed Interrupt (STI) configuration. This is a recoverable fault, meaning the controller can potentially continue operation if the error is addressed, but the STI function may not work as intended.

Common Causes

  • Invalid parameters or settings within the STI configuration (e.g., interrupt time out of range).
  • Conflicting STI routines or timers that interfere with each other.
  • Hardware issue related to the internal timer or interrupt mechanism.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Refer to the Error Code in the STI Function File for the specific error details.

  2. 2

    Review the STI configuration parameters and ensure they are valid, within limits, and do not conflict.

  3. 3

    Reload the corrected STI configuration and enter Run mode.

Browse all codes in this manual (60)
Verified technical data. Last updated: March 2026

Related Faults

Source: Allen-Bradley MicroLogix 1400 Programmable Controllers