User Manual

LOGO! functions
4.4 Special functions list - SF
LOGO!
218 Manual, 06/2014, A5E33039675
● PI controller (Page 220) (actual value AQ)
● Up/down counter (Page 173) (actual value Cnt)
● Analog filter (Page 232) (actual value AQ)
● Average value (Page 237) (actual value AQ)
● Max/Min (Page 234) (actual value AQ)
● On-delay (Page 136) (current time Ta)
● Off-delay (Page 140) (current time Ta)
● On-/off-delay (Page 142) (current time Ta)
● Retentive on-delay (Page 144) (current time Ta)
● Wiping relay (pulse output) (Page 146) (current time Ta)
● Edge-triggered wiping relay (Page 148) (current time Ta)
● Asynchronous pulse generator (Page 150) (current time Ta)
● Stairway lighting switch (Page 154) (current time Ta)
● Multiple function switch (Page 156) (current time Ta)
● Stopwatch (Page 171) (actual value AQ)
● Analog ramp (actual value AQ)
● Threshold trigger (Page 180) (actual value Fre)
Select the required function by the block number. For information on parameter defaults,
refer to the On-delay (Page 136) topic.
Parameter p (number of decimals)
Applies only to the AQ, L1, L2, MaxL, StSp and Rate values displayed in a message text.
Timing diagram for AQ