Siemens SIMATIC S5-115U, Руководство пользователя

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S5-115U Manual STEP 5 Operations
8.5.2 Binary Scaler
This section describes how to program a binary scaler.
Example: The binary scaler (output Q 3.0) changes its state each time I 1.0 changes its signal
state from "0" to "1" (leading edge). Therefore, half the input frequency appears at
the output of the memory cell.
LAD
F 2.0
Q 3.0 F 2.0 F 1.1
F 1.1
I 1.0
F 1.1 F 1.0
F 1.1
F 1.0
STL CSF
A I 1.0
AN F 1.0
= F 1.1
***
A
F 1.1
S F 1.0
AN I 1.0
R F 1.0
NOP 0
***
A
F 1.1
A Q 3.0
= F 2.0
***
A
F 1.1
AN Q 3.0
AN F 2.0
S Q 3.0
A F 2.0
R Q 3.0
NOP 0
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Circuit Diagram Timing Diagram
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Time
1
0
1
0
I 1.0
Q 3.0
Signal states
I 1.0
Q 3.0
F 2.0
I 1.0
F 1.0 F 1.1
F 1.1
I 1.0
F 1.0
S
R Q
&
F 2.0 Q 3.0
F 1.1
F 1.1
&
Q 3.0
S
R Q
Q 3.0
F 2.0
&
I 1.0
( )
Q 3.0
S
R Q
F 2.0
Q 3.0
( )
S
R Q
Note
Output in CSF or LAD is possible only if you enter the segment boundaries "***" when
programming in STL.
EWA 4NEB 811 6130-02b
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