Short description
A one-shot at the input triggers a configurable time. LOGO! sets the output upon expiration of this time.
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Connection |
Description |
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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. |
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Parameter |
T is the on-delay time for the output (output signal transition 0 to 1). |
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Output Q |
Q switches on upon expiration of the time T. |
Parameter T
The value of another already-programmed function can provide the time in parameter T:
Analog comparator: Ax - Ay
Analog threshold trigger: Ax
Analog amplifier: Ax
Analog multiplexer: AQ
Analog ramp: AQ
Mathematic instruction: AQ
PI controller: AQ
Up/Down counter: Cnt
For the 0BA7 and later version devices, you can additionally use the actual values of the following already-programmed functions:
On-delay: Ta
Off-delay: Ta
On-/off-delay: Ta
Retentive on-delay: Ta
Wiping relay(pulse output): Ta
Edge triggered wiping relay: Ta
Asynchronous pulse generator: Ta
Stairway light switch: Ta
Multiple function switch: Ta
Stopwatch: AQ
Analog filter: AQ
Average value: AQ
Max/Min: AQ
Threshold trigger: Fre
You select the required function by the block number.
Timing diagram
Description of the function
A 0 to 1 signal transition at input Trg triggers the current time Ta. LOGO! sets the output Q to 1 when Ta reaches the time T. A further pulse at input Trg does not affect Ta.
The output and the time Ta reset to 0 only with a 1 signal at input R.
If you do not set the retentivity, output Q and the expired time reset after a power failure.