Short description
A one-shot at the input triggers a configurable time. The output is set upon expiration of this time.
Connection |
Description |
Input Trg |
Trigger the on-delay time via the Trg (Trigger) input. |
Input R |
Reset the on-delay time and reset the output to 0 via input R (Reset). Reset takes priority over Trg. |
Parameter |
T is the on-delay time for the output (output signal transition 0 to 1). Retentivity on = the status is retentive in memory. |
Output Q |
Q is switched on upon expiration of the time T. |
Parameter T
The time in parameter T can be provided by the value of another already-programmed function:
Analog comparator: Ax – Ay
Analog trigger: Ax
Analog amplifier: Ax
Analog multiplexer: AQ
Analog ramp: AQ
Analog math: AQ
PI controller: AQ
Up/Down counter: Cnt
You select the required function by the block number.
Timing diagram
Description of the function
The current time Ta is triggered with a 0 to 1 signal transition at input Trg. Output Q is set to 1 when Ta reaches the time T. A further pulse at input Trg does not affect Ta.
The output and the time Ta are only reset to 0 with a 1 signal at input R.
If retentivity is not set, output Q and the expired time are reset after a power failure.