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Hello ,I need a help in transferring a DBx.DBDxxx to an output, in the form of a Boolean signal, could you help me out?

if You use STL than:

a DB1.DBX0.5
= Q0.1

Upper code You can easy convert to LAD or FBD

regards

I want to transfer a double word because my db is DB8.DBD462

Could You clarify Your problem. DBx.DBDx is DOUBLE WORD data, which is 32bits wide.

l dbx.dbd xxx
t qd yyy

So you can do this way in STL.

L DB8.DBD462
T QD4

(You do only two statement code)

But all the Bit address start from DB8.DBX462.0 till DB8.DBX465.7 will write to Q 4.0 till Q 7.7

Exactly.
Just experience share here To create couple FCs and call them when necessary. It can be also work for some mathematical calculation