LOGO! Manual
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4.3 Basics on special functions
Because of their different input designation, you can see
right away that there is a difference between the special
functions and basic functions. SFs contain timer functions,
retentive functions and various parameter assignment op-
tions, which allow you to adapt the circuit program to suit
your own requirements.
This section provides you with a brief overview of input
designations and with some particular background informa-
tion on SFs. The SFs in particular are described in
Chapter 4.4.
LOGO! functions
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