Siemens SIMATIC S5-115U, User Manual

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STEP 5 Operations S5-115U Manual
8.5.3 Clock (Clock-Pulse Generator)
This subsection describes how to program a clock-pulse generator.
Example: A clock-pulse generator can be implemented using a self-clocking timer that is
followed in the circuit by a binary scaler. Flag F 2.0 restarts timer T 7 each time it runs
down, i.e., flag F 2.0 is "1" for one cycle each time the timer runs down. The pulses of
flag F 2.0 applied to the binary scaler result in a pulse train with pulse duty factor 1:1
at output Q 0.6. The period of this pulse train is twice as long as the time value of the
self-clocking timer.
Circuit Diagram Timing Diagram
T
F 2.0
Q 0.6
T
Time
Signal states
1
0
1
0
G
F 2.0
F 3.0
Q 0.6
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
Q 0.6 F 2.0
Q 0.6 F 2.0
F 3.0 F 2.0
F 3.0 F 2.0
KT 10.1
F 2.0
T 7
T 7
LAD STL CSF
F 3.0
F 2.0
F 3.0
Q 0.6
F 2.0
KT 10.1
F 2.0
T 0
TV
BI
DE
R Q
S
R Q
S
R Q
&
&
&
&
F 2.0
Q 0.6
F 2.0
Q 0.6
F 2.0
F 3.0
F 3.0
Q 0.6
F 2.0
( )
T 0
TV BI
DE
R Q
S
R Q
S
R Q
AN F 2.0
L KT 10.1
SR T 7
NOP 0
NOP 0
NOP 0
A
T 7
= F 2.0
***
A
F 2.0
AN F 3.0
S Q 0.6
A F 2.0
A F 3.0
R Q 0.6
NOP 0
***
AN
F 2.0
A Q 0.6
S F 3.0
AN F 2.0
AN Q 0.6
R F 3.0
NOP 0
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