question

Essentially what you're going to want to do, is set up some labels and On Message triggers to handle this logic. Whenever an item enters or is finished at a station, have it send a message with a parameter of 1 or 0 respectively to your Decision Point upstream.

In the Decision Point's On Message trigger then you could write the following code:

if (msgparam(1)==1) {
		setlabel(current,"redirect",1);
}
if (msgparam(1)==0) {
		setlabel(current,"redirect",0);
}

This will assign a "redirect" label to your DP with either a value of 1 or 0, depending on whether the . Then in the DP's On Arrival trigger, you can have it send the item to the next Station if the redirect label is 1.

In your case with 5 stations, you'll either want to have a series of DP's with the same logic corresponding to each station. Or if it's all on 1 DP you'll need to have different "redirect" labels for each station, and have it check through each of them in your On Arrival trigger.

Here's a simple example to help you out:

redirect.fsm