Open Wire Detection (Voltage Input)

What does I.Chxx.OpenWire (Voltage) mean?

This tag indicates that a wire is disconnected from input channel xx when operating in Voltage mode, detected when the input signal value reaches the full scale of the configured input range. This condition concurrently sets the I.Chxx.Fault tag, indicating untrusted data, and suggests a floating or open circuit voltage input. Open Wire Detection must be enabled in the module configuration.

• Physical disconnection or break in the input wire connected to channel xx.
• An open circuit condition (e.g., floating input) causing the voltage signal to reach the maximum scale of the input range.

Click steps to track your progress.

1. 1

   Verify the physical wiring at input channel xx terminals for proper connection and integrity.

2. 2

   Measure the voltage at the input channel xx to confirm it is within the specified operating range when the circuit is closed.

3. 3

   Ensure Open Wire Detection is enabled in the module configuration (refer to page 98).