Siemens 6ED1050-1AA00-0BE8 User Manual

LOGO! functions

4.4 Special functions list - SF

LOGO!

164

Manual, 04/2011, A5E03556174-01

4.4.2

Off-delay

Short description

When an on-delay is set, the output is reset when the configured time has expired.

Symbol in LOGO!

Wiring

Description

Input Trg

The off-delay timer starts with a negative edge (1 to 0

transition) at input Trg (Trigger)

Input R

A signal at input R resets the on-delay time and the

output.

Parameter

The output switches off (transitions from1 to 0) when

the delay time T expires.
Retentivity:

/ = No retentivity

R = The status is retentive.

7UJ
5
3DU

Output Q

Q is set with a signal at input Trg. It holds this state

until T has expired.

Parameter T

Note the parameter T defaults specified in topic Time response (Page 151).
The time for parameter T can be based on the actual value of another, already-configured

function. You can use the actual value of the following functions:
●  Analog comparator (Page 218) (actual value Ax - Ay)
●  Analog threshold trigger (Page 213) (actual value Ax)
●  Analog amplifier (Page 226) (actual value Ax)
●  Analog multiplexer (Page 248) (actual value AQ)
●  Analog Ramp (Page 251) (actual value AQ)
●  Mathematic instruction (Page 265) (actual value AQ)
●  PI controller (Page 256) (actual value AQ)
●  Up/down counter (Page 201) (actual value Cnt)

If your LOGO! is a LOGO! 0BA7, you can additionally use the actual values of the following