TIA Portal : FC pin for inout variable

Marvy

Member
Join Date
Nov 2014
Location
aalst
Posts
2
In my FC I use an inout variable for the memory of a Set/reset.
When i call the FC i have the pin at the entry side of the block while i would expcect it at the exit side. Is there a way to change tis ?
 
In TIA, the InOut are always on the left hand side (inputs).
The same goes for codesys so i suspect it might be somewhat of a standard.
 
I expect TIA Portal will always put an InOut parameter on the left side of an FC instruction.

You could replace the InOut FC parameter with an In and an Out parameter, and tie them to the same external tag/variable. See below.
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