Pulse Operated Switch; Introduction - Siemens SIMATIC S7-200 Getting Started

Pulse Operated Switch

3.1

Introduction

You will implement a pulse-operated switch here. Within this context, you will learn about
edge detection and bit memories.
Principle of Operation
Timing Diagram
Getting Started - Advanced
Training Documents, 09/2007, A5E01469795B
A lamp at output Q0.5 is to be switched on
as soon as S1 at input I0.0 is momentarily
closed.
If S1 (I0.0) is closed again, Q0.5 and the
lamp are to go off.
Whenever switch S1 is operated, Q0.5 is to
change its state.
This is a "pulse-operated switch".
Output Q0.5 is always to invert its current
state when the switch at I0.0 changes from
"open" to "closed".
If the switch remains closed or open, no
output change occurs.
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