Continuously Move

I want the empty car(no mission) will continuously move along the same direction, not stop in the bay.

Can I do it?

Hi,

you can create a traveltask on the OnUnload-trigger of the transporter to the networknode (NN4). On the arriveltrigger of that node you create a traveltask to a network node (eg. NN5). On this arrivel trigger you create also a traveltask back to NN4. The transporter travels without a stop. To break its run you should create a standard tasksequence for your own at the queue (Tab: Flow, field: Request Transport From) with a preempt command (preempt_only = 1)

The createemptytasksequece-command might look like:

treenode ts = createemptytasksequence(centerobject(current,1),0, 1 );

If the transporter never deliver a item, the network node, which sends the transporter back to the node at the queue, should not be connected then to a delivering station.


Jörg

Originally Posted by Jörg Vogel

Hi,

you can create a traveltask on the OnUnload-trigger of the transporter to the networknode (NN4). On the arriveltrigger of that node you create a traveltask to a network node (eg. NN5). On this arrivel trigger you create also a traveltask back to NN4. The transporter travels without a stop. To break its run you should create a standard tasksequence for your own at the queue (Tab: Flow, field: Request Transport From) with a preempt command (preempt_only = 1)

The createemptytasksequece-command might look like:

treenode ts = createemptytasksequence(centerobject(current,1),0, 1 );

If the transporter never deliver a item, the network node, which sends the transporter back to the node at the queue, should not be connected then to a delivering station.


Jörg

I don't know how to do. It is difficult to do it.
Can you post simple model to me.
Thanks your help.

How to "On the arriveltrigger of that node you create a traveltask to a network node"?
I don't how to write the code on arriveltrigger. I have tried many times, but always falied. Or have else ways?

Thanks.

Hi,

it is a deprecated command, but works fine for me.

createtraveltask(node("/Transporter9",model()),node("/NN4",model()));


Jörg

Thanks your answer.
Now I can continuously move on empty car, but I add a code
"treenode ts = createemptytasksequence(centerobject(current,1),0, 1 );" in "Request Transport From".

It is still continuously move on node, not to transport the item.
I don't know Why?

Hi Li Chin,

there is a predefined function on the flow tab in the field "request transport from" you can choose. As I remember it is called Standard Tasksequence Example 1. In the code you find the command createemptytask sequence. so long your transporter is traveling without a stop. The transport doesn't break its traveling around the network. Therefore a tasksequence is needed, which interfere the traveling around. That you achieve by a PREEMPT_ONLY at the command createemptytasksequence. The last parameter of the command has to be one.
The standard tasksequence and the tasksequences at whole are a basic concept in flexsim. The traveling of taskexecuters is controlled by these methodes. Maybe you read about this concepts at the manual.

rgds
Jörg

This is my model.
How to use "PREEMPT_ONLY" in my model.
It can't transfer a item, it is Continuously Move long time.

Hallo Li Chin,

your model is for me too difficult to explain every solution step. I have been able to understand it after 2 hours. As an example I have used your model 2.fsm and built therein the modifications. The most important points are:
use priority for the transport from the processor,
use PREEMPT_AND_ABORT_ALL at the Onunload-trigger,
(This is useful because the number of taskesquence doesn't increase so much)
use a return value on the arrival-trigger of the network nodes.

Jörg

Originally Posted by Jörg Vogel

Hallo Li Chin,

your model is for me too difficult to explain every solution step. I have been able to understand it after 2 hours. As an example I have used your model 2.fsm and built therein the modifications. The most important points are:
use priority for the transport from the processor,
use PREEMPT_AND_ABORT_ALL at the Onunload-trigger,
(This is useful because the number of taskesquence doesn't increase so much)
use a return value on the arrival-trigger of the network nodes.

Jörg

Thanks your reply...
If I use more than a car, I need to use a Dispatcher.
But it use the code, it's failed.
WHY????

Hi,

the dispatcher passes the new tasksequences to an object which has nothing to do. But all your transporters have something to do. they travel around. If I choose the round robin fashion at the pass to option of the dispatcher the transporter fetch the items from the processors and deliver them to the queue.

Jörg

Originally Posted by Jörg Vogel

Hi,

the dispatcher passes the new tasksequences to an object which has nothing to do. But all your transporters have something to do. they travel around. If I choose the round robin fashion at the pass to option of the dispatcher the transporter fetch the items from the processors and deliver them to the queue.

Jörg

The model can't transfer a item.
The queastion is same. Thank you very much.

you are right, the model 2a has some flaws.
All my models to this thread are lost.

Jörg