iec 104 select before operate

iec 104 select before operate

Hello, 

I want to send a command type 63 with select before operate. when i look at the receiving end it always comes as direct execute. when we turn off SBO it works, but we need SBO.

Under variables i have set Ca, IOA, and Tid, and it is received on the receiving end correctly. under the write set value tab/folder i have set the checkbox for select before operate but zenon dose not send the SBO message, it is still sending direct execute. What am i missing. 

zenon 14 is my version.

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