How to set Digital I/O´s by Station Signals

Hey,
I want to set a DI by a station signal. How can I do this.

My application:
============
IA've got a Multi move System
Robot 1 sets a DO and moves a Kinematic to a position. (Event)
When the position is reached the kinematic sets a Station signal. (Event)
Now I want to start the movement of the Robot 2 (WaitDI)

IA've created an event that Sets a DI to 1 by the Station Signal
IA've changed the accesslevel of the DI to "all"
BUT
The DI donA't changes the value.

What IA've forgotten? What else I have to do ?

Wilfried