On-Delay - Siemens LOGO! Series Manual

LOGO! functions
4.4 Special functions list - SF
View in LOGO!
4.4.1

On-delay

Short description
The output is only set after a configurable on-delay time has expired.
Symbol in LOGO!
Parameter T
Note the defaults for parameter T in topic Time response (Page 151).
The time for parameter T can also be preset based on the actual value of another, already-
configured function. You can use the actual values 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)
160
Name of the special function
Shift register (Page 245)
Mathematic instruction error detection
(Page 268)
Wiring Description
Input Trg A signal at input Trg (Trigger) triggers the on-delay
timer.
Parameter T represents the time after which the output is
switched on (0 to 1 transition of the output signal).
Retentivity:
/ = no retentivity
R = the status is retentive.
Output Q Q is switched on when the set time T has expired,
provided Trg is still set.
Rem
REM
Manual, 04/2011, A5E03556174-01
LOGO!