Basic Functions List – Gf - Siemens Logo! Manual

4.2 Basic functions list – GF
Basic functions represent simple logical elements of Bool-
ean algebra.
You can invert the inputs of individual basic functions , i.e.
the circuit program inverts a logical "1" at a relevant input to
a logical "0"; if "0" is set at the input, the program sets a
logical "1". A programming example is found in
Chapter 3.7.3.
The GF list contains the basic function blocks you can use
for your circuit program. The following basic functions are
available:
View in the circuit
diagram
Series circuit
make contact
Parallel circuit with
break contacts
LOGO! Manual
A5E00380835-01
View in LOGO!
LOGO! functions
Name of the basic
function
AND
(see page 117)
AND with edge
evaluation
(see page 118)
NAND
(NOT AND)
(see page 119)
NAND with edge
evaluation
(see page 120)
115