[?]: CFC problem

[PLC_ITA]

Hello friends, i have only a little experience in CFC.

I want to move a word from ad DB to another DB when a bit is true in CFC

For example in S7 i use the follow sintax :

UN I0.0
SPB xxx
L DB10.DBW20
T DB20.DBW20
xxx:

In this case when Input I0.0 is false the word DB20.DBW20 is'nt overwrite and is possible to write for example, from a MP277

In CFC is not possible to do this because if i create a FC or FB i have always an out from the block and always owerwrite my word.

How i can do to resolve this problem ? what do you suggest ?

thank you

[krcedinac]

For example with the word it can be done like this:


Code for the Word to Real conversio function Conv_W_R is:

L #Word_IN
ITD
DTR
T #Out_data

OP_A block that passes real value when ti boolean input is on I think can be found in standard librarys.

You can think various ways to do it... this is just idea.