Open Wire Detection

Open Wire detection detects when a wire is disconnected from the channel. To enable Open Wire detection, go to Channels → Chxx view in Module Properties and select Enable Open Wire Detection checkbox.
Open Wire Conditions - 5034-IF4IH Modules
Mode
Cause of Detection
Resulting Module Behavior
Current (mA)
The input signal for a channel is below 92 μA.
  • The
    I:Chxx.OpenWire
     tag changes to 1.
  • A fault occurs and the
    I:Chxx.Fault
     tag is set to 1.
  • The
    I.Chxx.Underrange
     tag set to 1.
Voltage (V)
The input signal value is above 11V.
  • The
    I:Chxx.OpenWire
     tag changes to 1.
  • A fault occurs and the
    I:Chxx.Fault
     tag is set to 1.
  • The
    I.Chxx.Overrange
     tag set to 1.
IMPORTANT:
The Disable All Alarms feature does not disable the Open Wire detection feature but it disables all alarms on the module.
The Open Wire detection feature is not an alarm. It is an indicator that a wire has been disconnected from the channel but does not trigger an alarm.
To disable the Open Wire detection feature, you must clear the Enable Open Wire Detection checkbox in the Chxx view.
Provide Feedback
Have questions or feedback about this documentation? Please submit your feedback here.
Normal