Short description
An input signal generates an output signal of a configurable length.
Connection
|
Connection |
Description |
|
Input Trg |
You trigger the time for the wiping relay with a signal at input Trg (Trigger). |
|
Parameter |
T represents the time after which the output resets (output signal transition 1 to 0). Retentivity on = the status is retentive in memory. |
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Output Q |
A pulse at Trg sets Q. The output stays set until the time T has expired and if Trg = 1 for the duration of this time. A 1 to 0 transition at Trg prior to the expiration of T also resets the output to 0. |
Parameter T
The actual value of another already-programmed function can provide the off time 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
The input signal Trg = 1 sets the output Q to 1. The signal also triggers the time Ta, while the output remains set.
When Ta reaches the value defined at T (Ta=T), the output Q resets to 0 state (pulse output).
If the signal at input Trg changes from 1 to 0 before this time has expired, the output immediately resets from 1 to 0.