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
Refer to the Error Code in the STI Function File for the specific error details.
- 2
Review the STI configuration parameters and ensure they are valid, within limits, and do not conflict.
- 3
Reload the corrected STI configuration and enter Run mode.
Verified technical data. Last updated: March 2026
Related Faults
Source: Allen-Bradley MicroLogix 1400 Programmable Controllers