Consecutive expressions inside a same Script task

Question

Hi, 
 I've read that input ou output expressions inside a script tasks are not consecutives, 
 and the fact that Developer must not count on this. 
 
 If I have to create and use a custom counter, and then get a CDT value from this array at the index counter, 
 is there a way to do it from the same Script Task or I'm obligated to use 2 consecutive script tasks ? 
 Ex : 
 - pv!counter = myCounter +1 
 - pv!data = index(pv!myData, pv!counter, null)

Stefan Helzle · Accepted Answer

You cannot store data to PV in an input. I know the there is a "save into", but that is just a short cut and evaluated at the same time as any output definitions. The way you would do this is 
 INPUT: 
 ac!counter = pv!myCounter + 1 
 OUTPUT: 
 pv!myCounter = ac!counter 
 pv!d ata = index(pv!myData, ac!counter, null)

Consecutive expressions inside a same Script task

Top Replies