read variable in a function block

[Yingliangzhe]

Hello Everyone,
I'd like to ask a question about reading variables, that are saved inside a function block(FB). I have tried reading variable from Data block. Is it also possible to read variables from FB? Which function or methode should I use to get them?

Thank you!

[Yingliangzhe]

I have figured out, that the variables inside a function block(DB) will be mapped to a data block.
Then the variables will be saved, for later usage. So it would be same way to read the variable as the global data block.