Siemens LOGO! Manual page 202

LOGO! functions
4.4 Special functions list - SF
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 165) (actual value Ax – Ay)
● Analog threshold trigger (Page 160) (actual value Ax)
● Analog amplifier (Page 173) (actual value Ax)
● Analog multiplexer (Page 194) (actual value AQ)
● Analog ramp (Page 197) (actual value AQ)
● Analog math (Page 209) (actual value AQ)
● PI controller (actual value AQ)
● Up/down counter (Page 151) (actual value Cnt)
Select the required function by the block number. For information on parameter defaults,
refer to the On-delay (Page 123) topic.
Parameters KC, TI
Please note:
● 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.
202
Manual, 10/2017, A5E01248535-AA
LOGO!