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MinEdgeTime input

Specification of the minimum duration of the request signal at the ResetIn input.

Data type: TIME
Initial value: #0.5s
Minimum value: #0.1s

Connection: Connect this input to a time literal, i.e., to a constant of the data type TIME.

The time value specifies the minimum duration (in seconds) for which the request signal at the ResetIn input must have the TRUE state. By doing so, the input specifies in combination with the MaxEdgeTime input the time slot for the falling edge of the request signal to occur so that the request signal is recognized as valid signal.

The value at this input is only relevant when the function block evaluates the falling edge of the request signal (RisingEdge = FALSE) and the duration monitoring of the request signal is activated (EdgeMonitoring = TRUE).

Note
The time slot set via the MinEdgeTime and MaxEdgeTime inputs must correspond to at least one cycle of the Safety PLC. For information on this value, please refer to the corresponding PLC user manual.

WARNING
Non-conformance to safety function requirements
  • Verify that the time value set at the time input corresponds to your risk analysis.
  • Be sure that your risk analysis includes an evaluation for incorrectly setting the time value at the time input.
  • Validate the overall safety-related function with regard to the set time value and thoroughly test the application.