I am writting a "main" program (prgA) in SFC and each one of the actions of this diagram has an internal "subprogram" (sprgB) also in SFC. I want that **prgA **don't jump to the next step until the **sprgB **hasn't finished.
The problem is that, during the transitions of sprgB, the main **prgA **jumps to the next step and, consequently, the **sprgB **is deactivated without having arrived to its goal. I solved this problem with a series of boolean variables that indicate if a process is active or not in order to be checked at the transitions of the main program.
But now the same problem seems to happen when I call a customized function block in the main program witten in ST and the subprogram is a SFC: the SFC only goes **one **step further (but not to the end) when I call it once.
Thanks for your help!
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Hi!
I am writting a "main" program (prgA) in SFC and each one of the actions of this diagram has an internal "subprogram" (sprgB) also in SFC. I want that **prgA **don't jump to the next step until the **sprgB **hasn't finished.
The problem is that, during the transitions of sprgB, the main **prgA **jumps to the next step and, consequently, the **sprgB **is deactivated without having arrived to its goal. I solved this problem with a series of boolean variables that indicate if a process is active or not in order to be checked at the transitions of the main program.
But now the same problem seems to happen when I call a customized function block in the main program witten in ST and the subprogram is a SFC: the SFC only goes **one **step further (but not to the end) when I call it once.
Thanks for your help!
watch the conditions when to step and when block is completed.
make a global boolean to jump when step is dependend of more then one condition.