Wiping relay (pulse output)

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.

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:

For the 0BA7 and later version devices, you can additionally use the actual values of the following already-programmed functions:

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.

Overview