question

The AGV template may be easier because it has many things in place with which you may struggle to provide your own implementation - especially if you're new to FlexSim. Also it avoids the question of sequencing your deliveries and finding a best route by simply telling the AGV to follow and route and check if there is anything to load or unload at each point along the route. In some systems there could be room for improvement there and it's a good exercise to build your own AGV logic from scratch, especially if you need to customize the logic but there are some basic principles you should understand before undertaking this task. For this reason I advise you do all the tutorials. It could be that you will decide a few tweaks to the template will work for your case.

There are numerous issues in your model, as you probably know since your posting here, and the first in my mind is the formentioned issue of knowing which object is invoking which process. Note that the AGV template is an object based process flow, not a general process flow, and that the AGV is the object invoking the process (creating tokens), not the flowitems requiring transport. You've elected to use lists for the push/pull mechanism that determines which processor an item should visit. This should be distinct from the transport process which uses different lists. Not only that, you've added an Event triggered source to detect the arrival of items in Queue1 and push those to the list, as well as pushing to the same list on the queue's send to port. The only reason you don't see two entries per item is that the default option of the list is to not allow duplicate values on the list.

Once you have an item in the AGVWork list (which you need to add by the way since you're not using the AGV templates) then you need to have the AGV pull from that list. For that I would use an object process flow where the AGV travels to the queue before pulling from the list - that way only one AGV is pulling at once since only one can be at the queue at any given time. From there you need to come up with some logic on which items to pull for a given trip, and how to sort them (it's pretty standard) ready for drop off.

You're missing some logic in your description - for example how will finished boxes be taken out of the lane in the case where all processors in that lane are finished and waiting for the finished box to be collected? In this case no processor will pull a new item and therefore the AGV will not visit the lane so your model will stall.