Siemens S5-100U User Manual page 417

Simatic s5 programmable controller
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S5-100U
Typical Application
A counter module is plugged into slot 2. A value of 100 is set on channel "0" of this module using
the three-digit thumbwheel switches. The incoming pulses are counted once the counter has been
enabled by the control program. As soon as 100 pulses have been counted, a signal (output 4.0) is
released.
STL
S
Q
2.0
A
I
2.0
=
Q
4.0
15-16
Connection Diagram
1
3
5
7
2
4
6
During the counting operation, input I 2.0 is "0". When
the counter status is "0", input I 2.0 is set to "1".
Output Q 4.0 is then also set. Direct output at terminals
5 and 6 is possible.
9
8
10
Explanation
Function Modules
EWA 4NEB 812 6120-02

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