Alternating yellow/red
Calibration In Progress
Allen-Bradley · Compact 5000 I/O Analog Modules
What does Alternating yellow/red mean?
The module is currently performing a calibration procedure. This is a temporary and expected state, indicating that calibration is actively running and not a fault condition requiring troubleshooting of hardware. The module will return to normal operation upon completion.
Common Causes
- A calibration process has been initiated for the module or channel via the Logix Designer application.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Complete the ongoing calibration process within the Logix Designer application.
Verified technical data. Last updated: March 2026
Related Faults
Source: Allen-Bradley Compact 5000 I/O Analog Modules