Use one variable serveral times in one program

2020-02-27T14:05:00.888000Z

Try to use bits with an output only once in your program to avoid things like this.

For your example you need to make an OR statement by paralleling the two inputs in the same rung as the output.

----		-----	----------------------( )----

Use one variable serveral times in one program

2020-02-27T14:05:00.468000Z

You can do these tasks in a single rung;
Set the input coils in parallel (in an OR operation) and then write output-coil once.
Also, by-design the latest operation in writing to the same output always get executed (in a single cycle).
So, in your case the lowest rung always has highest precedence.

Use one variable serveral times in one program

2020-02-27T14:04:59.303000Z

Hi Everyone!
I have a problem with variables in Codesys.
Firstly, I would like to use 1 variable as Coil, serveral times in the same program, but if i have use other firstly variable, which runs Coil, then coil is not working. When I use other secondly variable, which runs Coil, then coil is working. Why? How to fix it?
I would like to attach a coil from several places in the program.

Thanks.

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