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LOGO! functions
4.4 Special functions list - SF
LOGO!
168
Manual, 04/2011, A5E03556174-01
4.4.4
Retentive on-delay
Short description
A one-shot at the input triggers a configurable on-delay time. The output is set when this
time has expired.
Symbol in LOGO!
Wiring
Description
Input Trg
A signal at input Trg (Trigger) triggers the on-delay
timer.
Input R
A signal at input R resets the on-delay time and the
output.
Parameter
T represents the on-delay time for the output (output
status transition 0 to 1).
Retentivity:
/ = no retentivity
R = The status is retentive.
4
7UJ
5
3DU
Output Q
Q is set after the time T has expired.
Parameter T
Note the defaults specified in topic Time response (Page 151).
The time for parameter T can be provided by the actual value of another already-
programmed 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)
If your LOGO! is a LOGO! 0BA7, you can additionally use the actual values of the following
functions:
●
Analog filter (0BA7 only) (Page 271) (actual value AQ)
●
Average value (0BA7 only) (Page 276) (actual value AQ)
●
Max/Min (0BA7 only) (Page 273) (actual value AQ)
●
On-delay (Page 160) (current time Ta)
●
Off-delay (Page 164) (current time Ta)
●
On-/off-delay (Page 166) (current time Ta)
Summary of Contents for LOGO!
Page 8: ...Preface LOGO 8 Manual 04 2011 A5E03556174 01 ...
Page 278: ...LOGO functions 4 4 Special functions list SF LOGO 278 Manual 04 2011 A5E03556174 01 ...
Page 366: ...Abbreviations LOGO 366 Manual 04 2011 A5E03556174 01 ...
Page 372: ...Index LOGO 372 Manual 04 2011 A5E03556174 01 ...
Page 534: ...Index Basic Panels 162 Operating Instructions 04 2012 A5E02421799 03 ...