Siemens SIMATIC S5-115U User Manual page 203

Simatic s5 series cpu 941-7ub11 cpu 942-7ub11 cpu 943-7ub11 and cpu 943-7ub21 cpu 944-7ub11 and cpu 944-7ub21
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S5-115U Manual
AND Operation
The AND operation scans to see if various conditions are satisfied simultaneously.
Output Q 3.5 is "1" when all three inputs are "1".
The output is "0" if at least one input is "0".
The number of scans and the sequence of the logic
statements are optional.
STL
A
I
1.1
A
I
1.3
A
I
1.7
=
Q
3.5
OR Operation
The OR operation scans to see if one of two (or more) conditions has been satisfied.
Output Q 3.2 is "1" when at least one of the inputs is "1".
Output Q 3.2 is "0" when all inputs are "0" simultane-
ously.
The number of scans and the sequence of their program-
ming are optional.
STL
O
I
1.2
O
I
1.7
O
I
1.5
=
Q
3.2
EWA 4NEB 811 6130-02b
Example
CSF
I 1.1
&
I 1.3
Q 3.5
I 1.7
Example
CSF
I 1.2
1
=
>
I 1.7
Q 3.2
I 1.5
STEP 5 Operations
Circuit Diagram
I 1.1
I 1.3
I 1.7
Q 3.5
LAD
I 1.3
I 1.1
I 1.7
Q 3.5
Circuit Diagram
I 1.2
I 1.5
I 1.7
Q 3.2
LAD
Q 3.2
I 1.2
I 1.7
I 1.5
8-3

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