Control Expert V15 or above - how to use global variables inside a DFB?

[FSE_Grahovac]

Hi all,

apparently, since CE V15.0, it is possible to use variables defined in the variable list (outside the DFB) inside an DFB. I tried this with CE V15.2 and it does not work. Can anyone say anthing to this topic?  

[Bosswaffle]

Inside your DFB address the external variables as "PROJECT.xyz" where xyz is the external variable you'd like to use. 

[brightonrust]

This is giving me an error. It's saying there is a variable conflict.

[Michael_Chan]

There are two ways to get your global variables into the DFB:

1) Use the "MOVE" function block to move your global data to a declared "Public" variable within the DFB, or

2) Use the "inputs/outputs" pin of the DFB as the direct connection to the global variable.

[RoozeeR]

Or use the global variable direcly in the DFB code named as "Project.Global_Data"