Can't control the conveyor speed by using an analog signal

I have an issue with controlling the conveyor speed using an analog signal in Picking PowerPac. I followed the steps in Example 6.7 of the Picking PowerPac Application Manual. However, in the option Assigned to unit: PPASIM, I can only see PPABOARD01. When I continue until step 15, I still cannot control the conveyor speed.

Could you please advise me how to simulate the conveyor to start and stop sequentially?

Thank you very much for your support.