Raalen

How do I Transition from one sequence to another

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I am new to PLC programming and I am trying to figure out how to go from one sequence to another using Structured Text with GX works 2.

 

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What do you mean ??? it's running top to bottom. 
Do you mean you have created multiple programs ?

 

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yes I am working on code that I didn't create and I am trying to add a new sequence(program) to the already existing programs

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you still did not describe problem. what is preventing you from doing that?

each block of instructions is executed top to bottom (begin to end).

sequences are just connecting end of one block with begin of next one.

 

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Ok so the code is using  EnableRel.DC[myDC] to go from one sequence to the other with RequestRel.DC[myDC] := FALSE   then later in the code when it is being used  := TRUE

so essentially what I am asking is what does the Enable and Request do in the code?

 

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no clue.... whatever original programmer intended them to do.

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Using Structured text the code has 2 main sequences

which are labeled 

mySeq                    := 6; and

 mySeq                    := 3;

I am trying to add a sequence in between for example 

mySeq                     := 4;

The problem is, it does not recognize it after i rebuild it. Could this be due to a handshaking error between the sequences?
 

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Ok, what did you figure out?

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