Siemens LOGO! Series - And

LOGO! functions
4.2 Basic functions list - GF
LOGO!
Manual, 04/2011, A5E03556174-01
143
View in the circuit diagram View in LOGO! Name of the basic function
'RXEOHFKDQJHRYHUFRQWDFW
4



XOR (Page 149)
(exclusive OR)
%UHDNFRQWDFW
4


NOT (Page 149)
(negation, inverter)
4.2.1 AND





4
6\PEROLQ/2*2&LUFXLWGLDJUDPRIDVHULHVFLUFXLWZLWK
VHYHUDOPDNHFRQWDFWV
The output of the AND is only 1 if all inputs are 1, i.e. all contacts are closed.
At an unused block input (x): x = 1.
AND function logic table
1 2 3 4 Q
0 0 0 0 0
0 0 0 1 0
0 0 1 0 0
0 0 1 1 0
0 1 0 0 0
0 1 0 1 0
0 1 1 0 0
0 1 1 1 0
1 0 0 0 0
1 0 0 1 0
1 0 1 0 0
1 0 1 1 0
1 1 0 0 0
1 1 0 1 0
1 1 1 0 0
1 1 1 1 1