Channel Data Uncertain (5069-IF8, 5069-OF4/K/8)
Allen-Bradley · Compact 5000 I/O Analog Modules
What does Chxx.Uncertain mean?
This boolean tag indicates that the channel data for a specific channel (xx) can be inaccurate but the degree of inaccuracy is not known. A value of 1 means the data is uncertain. The tag automatically resets to 0 once the underlying condition is resolved.
Common Causes
- Data signal slightly outside the channel operating range
- Channel (Chxx) is slightly over temperature
- Invalid sensor offset value configured for the channel
- Calibration fault on the channel
- Calibration is currently in process on the channel
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify the data signal for channel (Chxx) is within the specified channel operating range.
- 2
Check the module's operating environment temperature and the channel (Chxx) temperature for any slight over-temperature conditions.
- 3
Review the sensor offset value configured for channel (Chxx) in the module configuration.
- 4
Check the calibration status of channel (Chxx) in the Logix Designer application.
- 5
Wait for any ongoing calibration process on channel (Chxx) to complete.