lifo fom a rack??

I'm trying to arrange 8 items in a rack in a certain order, then remove them in opposite order. Any tips??

I've attached one approach that works for your application. Just hit the script window to open the input of each rack to start the transfer.

On the pull rule you can select item rank to be equal to the content(up(item)). The key is that on the entry to the rack you need to do an openinput to get pull requirement to fire again.

I think you could also give the item on entry of the rack the rank 1 with the setrank command (setrank(item,1)). So the item which entered last, will be send out first.

There is also a variable you can set on the Rack called lifo. Unfortunately it is not available on the Rack's gui, but every FixedResource now has a "lifo" variable that, if set to 1, will cause the FixedResource to search its queue backwards whenever finding a flowitem to send downstream (so far we've only made it available on the queue's gui). You can set it in the rack's variables in the tree view.

Here's Nico's version which is better than my original post