Timed Pulse function block

The Timed Pulse (TP) function block generates a True (1) discrete output for a specified time duration when the input makes a positive (False-to-True) transition. The output remains True even when the input returns to its initial discrete value and returns to its original False value only when the output is True longer than the specified time duration. Any 0 to True transition will cause a reset of the timer.

There are no modes or alarm detection in the block.

Figure: Timed Pulse function block

IN_D is the discrete input value and status used to trigger the timed discrete output value.

OUT_D is the discrete output value and status.

The following figure shows the internal components of the Timed Pulse function block:

Figure: Timed Pulse function block schematic diagram