Siemens S7-200 User Manual download pdf (Page 31)

Time to Show

What You Know

... because you’ve made some real progress!

✔ Read and answer the questions below.

✔ What is the cycle of a PLC?

what are the three main components of the “cycle“?

✔ How is a latching function implemented in PLC technology?

✔ Normally-closed contact: How is this represented in the ladder diagram,

what effect does it have, which safety measures can be achieved using it?

✔ What is an edge, how is it detected and to what purpose?

✔ What are bit memories, what are they used for?

✔ How are the "Set" and "Reset" coils entered and what effect do they have?

See Page 9

See Page 13

See Page 14

See Page 23

See Page 25

See Page 26

Pulse-operated switch

- Introduction

- Solution Overview

- Edge Detection

- Bit Memories

- Solution Description and Test

You’re sure to know the answers to these ques-

tions, even if you have to look up the relevant

pages again.

But by now everything will have fallen into place!

Pulse-Operated Switch

Latching Revision

Pulse Opera-

ted Switch

Off-Delay

Timer

Sequencer Appendix

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 73 74

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Siemens S7-200 User Manual Page 31