This instruction acts as a timer to generate a pulse of predefined duration.
On the rising edge of the start input, output Q remains in the ON state for the specified preset time period (PT) even if the input should experience a new rising edge.
The elapsed time (ET) begins evolution as soon as there is a rising edge of the start input and continues to increase until the falling edge of the input itself, at which time it is imposed equal to 0 (however, not before the time (PT) is over).
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tm_tp (timer name, bool start)
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Name of the timer of type timer
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Start input of the timer (rising edge).
Can be any condition, even an expression (e.g., cp(1) > 1000)
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Rule, Task
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Timers are not retentive
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Diagnostics
•Generate alarm 9901 ill. fun. if the timer is previously used with another type of timer |
