I know that for an object to be removed from a pallet rack you need "Rack Pick". However, in one of my models, I have a different configuration where I am using pick up:
Step 1: 10 agents are in the rack
Step 2: Another agent picks them up
The way AnyLogic understands the above is that the rack still holds 10 agents, so I get the error eventually that the pallet rack is full. Is there a simple turnaround for this?
you have to remove the agents from cells with this line of code
palletRack.remove(agent);
put it to your pickup block, "on pickup" trigger.
Related
The first time, pallets get stored in rack and later on, they get picked by the resource.
Now 2nd time when pellets come to get store in the rack, I get rack full error but there is 0 pallets in rack at that time means rack is empty.
Attaching the model images below.
Error
Pallet Rack
Rack Store
How can i solve this problem?
I suspect you didn't use a rackpick to take the pallets out of the storage... you MUST use a rackpick
Or you need to use palletRack.remove(agent);
If that's not the problem, then you will have give more information
In this model I want to transport MaterialBoxes (Agent) to the next available workstation by an AGV. I wanted to keep the model as simple as possible, but I did not find a solution to transport the MaterialBoxes to a seized resource (Workstation 1 or Workstation 2) by using the "Move by Transporter" or "Seize Transporter" blocks. Therefore I adapted the solution of the "job shop model" (https://anylogic.help/tutorials/job-shop/index.html) by using the "rack pick" block to transport the Materialboxes from the rack to the seized workstation. How can I adapt the model and avoid the process step going through the rack system with "rackStore" and "rackPick"? And I still have the problem to allocate an AGV to transport the MaterialBoxes from Workstation 1 and Workstation 2 to the Exit. Currently I'm just using the "moveTo" block to transport the boxes without a transport resource to the Exit. I am grateful for any advice. Thank you very much.
current Model
You need to add a custom variable to your agents where you can store the workstation that they seized and then in the move to block you can have them move to the station that they seized.
When the agent then seizes a workstation you save the work station it seized to the variable.
When it is time to move the agent you can move it to the location of the seized workstation.
You can also check out the solution in the example model Trauma Center https://cloud.anylogic.com/model/0c41592c-96d8-4824-b816-c89eccfd79db?mode=SETTINGS
Here agents move to the resource unit home, location of the unit that they seized
in rack pick element, the destination can not be a pallet rack, is there a way to send agents directly from one pallet rack to another pallet rack without any point or rectangular nodes (or any other type of destination except pallet rack) between them?
to do that you need to use the rackStore and select the destination palletRack. It will pick up the agent in the initial pallet rack and move it to the destination pallet rack.
No need to use rackPick, only rackStore.
i`m trying to take pallets from a conveyor to a Rack and after some time the Picker(Ressource) should take the Pallet out of the Rack to a conveyor again. But if i try to use the Rack Store, i get the error: The agent is not in a network. I think the problem is the Ressource(Picker), because without it the Rack Store is working.
Thanks for helping.
This might work, assuming you are using a conveyor from the material handling library, after the conveyor use a conveyorExit block.
The conveyorExit block allows your agents to move smoothly from a conveyor network to the normal network.
If you are using a conveyor from the process modeling library, then it means that you are not connecting your networks correctly and you should be sure you conveyor path is connected in the same network as the path in which your palletRack is located.
This might fix. In my case: I had 4 process flows of the same type of agent (ie. agent Type: product) coming into the RackPallet. Two is a to model processes before agent:product is stored in Rack, and the other two is to model the initial Stock of the Rack.
This solved my problme: I put the code
agent.setNetwork(network2);
before the RackStore of the initial Stock process flows, and it worked. I think this is because when we model initial Fill, the agent is not set on a on network yet.
Is it possible to move pallet between two different racks directly, without adding intermediate point node? For example I have two racks one at the receiving dock and one a the storage, after unloading all pallets to Receiving rack I need to send it to storage rack. So I understand I need to add two blocks Rack Pick and Rack store. Is it possible to combine those two?
You can always combine any number of blocks and make your own composite block. Select them, right-click and choose "create flowchart block".
This tutorial (phase 7) shows you how to do it and how to make it as flexible/reusable as you want.