Pull Specific Flowitems from Rack using Message

Hi fellow simulators!

I am experimenting on a model, trying to pull flowitems from a rack to three different conveyors, based on a label. The object of the excecise is to send a message to a rack to release flowitems to a specific conveyor.

If I assign the label on creation, it works as planned. So far so good, but I want to be able to use the Script window to send messages to release items.

The way I am going about it is as follows:

I set up the message trigger on the rack to

• Select the first flowitem without an assigned label ("Label" = 0)
• Set the flowitem's "Label" = msgparam(1)

I then use the following code in the Script Window:

treenode Rack = node("MAIN:/project/model/Rack2");
int Integer = duniform(1,3);
sendmessage(Rack,Rack,Integer,0,0);

I tested this, and it seems to work as planned; eack time I send the message, the next flowitem in line gets a "Label" value from 1 to 3.

However, the rack doesn't release any flowitems. Can anyone see where I went wrong?

Any help would be greatly appreciated.

without looking at your model, do you use the releaseitem command?

Thanks a lot. That did the trick.
I did not know the releaseitem command. Very useful.

(Attached the corrected model)