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ErrorLib — Industrial Fault Code Library

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Chxx.NotANumber

Channel Output Not a Number (5069-OF4, 5069-OF4K, 5069-OF8)

Allen-Bradley · Compact 5000 I/O Analog Modules

What does Chxx.NotANumber mean?

This boolean tag indicates that the last value received for the channel (xx) output data value was not a valid number. A value of 1 means the data received was non-numeric, which can lead to incorrect output signals.

Common Causes

  • Invalid data format received for the channel (Chxx) output value.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the format and type of the output data being processed by channel (Chxx) from the Logix Designer application.

  2. 2

    Check the configuration settings for channel (Chxx) to ensure they match the expected output data type.

Browse all codes in this manual (33)
Verified technical data. Last updated: April 2026

Related Faults

Alternating yellow/redCalibration In ProgressCJChxx.FaultCold Junction Data Fault (5069-IY4, 5069-IY4K)CJChxx.FieldPowerOffCold Junction Field Power Off (5069-IY4, 5069-IY4K)
Source: Allen-Bradley Compact 5000 I/O Analog Modules
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