User Manual

LOGO! functions
4.4 Special functions list - SF
LOGO!
Manual, 06/2014, A5E33039675
221
Parameters SP and Mq
The set-value SP and the value for Mq can be provided by another already-programmed
function. You can use the actual values of the following functions:
● Analog comparator (Page 188) (actual value Ax – Ay)
● Analog threshold trigger (Page 183) (actual value Ax)
● Analog amplifier (Page 195) (actual value Ax)
● Analog multiplexer (Page 213) (actual value AQ)
● Analog ramp (Page 216) (actual value AQ)
● Mathematic instruction (Page 227) (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)
● PI controller (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.
Parameters KC, TI
Please note the following circumstances:
● If parameter KC has value 0, the "P" function (proportional control) will not be executed.
● If parameter TI has value 99:59 m, the "I" function (integral-action control) will not be
executed.
Parameter p (number of decimals)
Applies only to the PV, SP, Min and Max values displayed in a message text.