I created a very simple scene of cubes of whom each cube
gets an attribute “ymin” and is sent into the a dopnet.
In the Dopnet I move a plane upwards and have an ActiveValue Node
in which I basically say this:
if “ty” of the plane is bigger than “ymin” of each cube then set the active value to 1.
It should really be that easy, but something in my scene is wrong so the cubes in the simulation don't behave like they shoud!!
hip is attached, please help me out

all the best,
Manu