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Siemens SIMATIC S5 User Manual

Siemens SIMATIC S5
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STEP 5 Operations S5-115F Manual
3.5.3 Clock (Clock-Pulse Generator)
This section 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.
Q 0.6Q 2.0
Q 0.6Q 2.0
Q 3.0Q 2.0
F 3.0F 2.0
KT 10.1
F 2.0
T 7T 7
LADSTL CSF
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Circuit DiagramTiming 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
F 3.0
F 2.0
F 3.0
Q 0.6
F2.0
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
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Q 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
AT7
= 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
3-74
EWA 4NEB 811 6149-02

Table of Contents

Other manuals for Siemens SIMATIC S5

Preview: Equipment Manual
Equipment Manual197 pages
Preview: Operating Instructions
Operating Instructions43 pages
Preview: Instructions
Instructions40 pages

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Siemens SIMATIC S5 Specifications

General IconGeneral
Product type designationSIMATIC S5
Programming languageSTEP 5
Digital inputsVaries by model
Digital outputsVaries by model
Analog inputsVaries by model
Analog outputsVaries by model
Supply voltage24V DC
CPU TypeVaries by model
MemoryVaries by model
Digital I/OVaries by model
Analog I/OVaries by model
CommunicationPROFIBUS
Operating Temperature0°C to 60°C
Relative Humidity5% to 95% (non-condensing)

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