Dual Channel Fault

What does DualChannelFault mean?

This diagnostic indicates a fault is present in a dual-channel input or output configuration. This type of fault suggests an inconsistency, discrepancy, or failure across redundant channels, typically found in safety-related applications.

• Mismatch or inconsistency between redundant input signals on the two channels
• Internal fault within the module's dual-channel processing circuitry
• Wiring fault affecting only one channel of a dual-channel pair, causing a discrepancy

Click steps to track your progress.

1. 1

   Verify that the input signals for both channels are consistent and within expected operational ranges.

2. 2

   Inspect the wiring integrity for both channels of the dual-channel configuration, looking for breaks, shorts, or loose connections.

3. 3

   Troubleshoot any associated external devices or sensors connected to the dual channels for proper operation and signal output.