Programming LOGO!

3.3 Blocks and block numbers

3.3Blocks and block numbers

This chapter shows you how to use LOGO! elements to create complex circuits and how blocks and I/O are interconnected.

In the topic "From circuit diagram to LOGO! Program (Page 76)" you will learn how to transform a conventional circuit into a LOGO! circuit program.

Blocks

A block in LOGO! represents a function that is used to convert input information into output information. Previously you had to wire the individual elements in a control cabinet or terminal box.

When you create the circuit program, you interconnect the blocks. To do so, simply select the connection you require from the Co menu. The menu name Co is an abbreviation of the term "Connector".

Logic operations

The most elementary blocks are the logic operations:

●AND

●OR

●...

,

 

 

ุ

 

 

 

 

,

 

 

 

 

 

 

 

 

 

 

 

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,QSXWV,DQG,DUHKHUHFRQQHFWHGWRWKH 25EORFN7KHODVWWZRLQSXWVRIWKH EORFNUHPDLQXQXVHGDQGDUHLGHQWLILHGE\

4WKHFUHDWRURIWKHFLUFXLWSURJUDPZLWKDQ [ 

These special functions offer you significantly greater performance:

●Pulse relay

●Up/down counter

●On-delay

●Softkey

●....

The chapter entitled "LOGO! functions (Page 137)" gives a full list of the LOGO! functions.

 

LOGO!

74

Manual, 04/2011, A5E03556174-01

Page 73 Page 75
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Image 74
Siemens 6ED1050-1AA00-0BE8 manual Blocks and block numbers, Logic operations
Page 73 Page 75

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