Siemens SIMATIC S5-115U User Manual page 204

STEP 5 Operations
AND before OR Operation
Output Q 3.1 is "1" when at least one AND condition has
been satisfied.
Output Q 3.1 is "0" when neither of the two AND
conditions has been satisfied.
STL
A I 1.5 I 1.5
A I 1.6
O
I 1.6
A I 1.4
A I 1.3
I 1.4
= Q 3.1
I 1.3
8-4
Example
CSF
&
1
=
>
&
Circuit Diagram
I 1.5
I 1.6
I 1.5
I 1.4
Q 3.1
S5-115U Manual
I 1.4
I 1.3
Q 3.1
LAD
Q 3.1
I 1.6
I 1.3
EWA 4NEB 811 6130-02b