Ladder logic for values sorting in ascending order

itsmerahul

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• Feb 10, 2016

• #1

Can anyone help Using Gx works 2 or Codesys Software
Want to arrange values in ascending order from ex 1...10
to d1...d10 register after executing start button.
note without using function block of sort

 

rollinstone

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• Feb 10, 2016

• #2

itsmerahul said:

Can anyone help Using Gx works 2 or Codesys Software
Want to arrange values in ascending order from ex 1...10
to d1...d10 register after executing start button.
note without using function block of sort

Click to expand...

That kind of task is just asking for using ST or IL instead LAD

 

itsmerahul

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• Feb 10, 2016

• #3

No dear want to write that logic in ladder only.

 

Manglemender

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• Feb 10, 2016

• #4

Start with a piece of paper.

What sort algorithm do you wish to implement?
1. Draw a flow diagram
2. Write code to match your flow diagram
3. Test code
4. Code works? Yes= goto 6 Else continue
5. Code matches flow diagram? Yes= GOTO 1 | No= GOTO 2
6. Job done

Nick

 

itsmerahul

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• Feb 10, 2016

• #5

thanks for your valuable reply
for ex
actually if i enter d1 ..3
d2..4
d3...1
d4..2
d5..5
d6...3
d7...8
d8...7
d9...6
d10...0...after executing start button all these value should arrange in ascending order from least value in d1 register...to max value in d10 register in ascending order

 

cjd1965

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• Feb 10, 2016

• #6

what you want is called a bubble sort if u want google to help

 

itsmerahul

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• Feb 10, 2016

• #7

ok can anyone post ladder diagram for the same

 

cjd1965

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• Feb 10, 2016

• #8

http://www.plctalk.net/qanda/showthread.php?t=56642 and many other treads

 

Manglemender

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• Feb 10, 2016

• #9

My guess is that this is a homework question. If someone just gave you the answer then you would not learn anything.

I refer you to my previous reply.

Post your efforts here and people will be able to help if you're struggleing.

Nick