cschlue

I'm trying to find out if Factory Talk supports the ability to not write to a tag if the expression is not true. and an example would be. If {PART_SELECT_A} == 1 Then {PROGRAM_1} Else If {PART_SELECT_A} == 2 Then {PROGRAM_2} Else If {PART_SELECT_A} == 3 Then {PROGRAM_3} Else If {PART_SELECT_A} == 4 Then {PROGRAM_4} Else If {PART_SELECT_A} == 5 Then {PROGRAM_5} Else If {PART_SELECT_A} == 6 Then {PROGRAM_6} Else If {PART_SELECT_A} == 7 Then {PROGRAM_7} Else If {PART_SELECT_A} == 8 Then {PROGRAM_8} Else If {PART_SELECT_A} == 9 Then {PROGRAM_9} Else If {PART_SELECT_A} == 10 Then {PROGRAM_10} Else {Part_Selected} In that example i'm writing the same tag to it's self, but this causes issues when i need to loop through several blocks of tags (Since expressions have an incredibly low character limit, which wouldn't matter if parameters worked in tags or there was a way to make a variable tag.) and only the final block will properly write to the tag even though technically it should just re-write the previous true statement. Any thoughts?

Is it at all possible to use a "Variable Tag"? An example would be i have a macro that runs on the close of a display that checks if a {Part_selection_A\Selected} tag is greater than 0, The tag is set by Interlocked Buttons on a part selection screen. If the tag is greater than zero I want to write {Part_Selection_A\Part_%} to the tag, and the % would be Equal to the same value of {Part_selection_A\Selected} I'm trying to avoid writing the same macro over and over again just to change one number.