Subtask doesn´t break

Hi guys,

the attached model shows a simple example of Tasks I want to build.
I´m trying to make the TaskExecuter waiting until Crane has collected the item.
Until now TaskExecuter doesn´t stop and wait until Subtasks are done, but finishes the given Tasksequence and Subtask starts after all.

I´m sure I only understood anything wrong or forgot some query. But I don´t find the solution.
Maybe you could have a look into the Message Trigger of Dispatcher and tell me what´s wrong with it?

In Switchcase 1 the Tasksequence is created and a Subtask Message is sended to Switchcase 2.

Thanks for your reply

Hello Sebastian,

you give the truck an utilize task, but you set the truck never free again with the command freeoperators.

Jörg

Hello Jörg,

thanks for this fast information. I´ve seen what you´ve changed in the Trigger. But I can´t see a difference in what happens. TE should stop at NN2 an wait until Crane finished unloading Item. Then drive back to NN1.
Also I didn´t realize what the line:

insertproxytask(ts,i_Operator2Key,TASKTYPE_SENDMESSAGE,NULL,NULL,tonum(Truck));//JV - initiate freeoperators in Operator2key
does?

Where does this message arrive? And how is freeoperators initiated there?

greetings.

Hello Sebastian,

this message is send to the crane, where the OnMessage Trigger frees the Taskexecuter. The involved1 parameter is set to the taskexecuter in the utilize-task.

In my updated model I have added the command tonode for the i_item in the load and unload tasks. With this change the crane loads the item from the Taskexecuter and moves it to the queue.

Jörg

Ok, now I understand why we speak about different thinks. I posted the wrong model.
The attached model does nearly the same as yours, but without any Utilized Task and this way without freeing operators.
Both models (the attached, and yours) doesn´t do what I´m looking for and in both at any time Crane starts to take Items directly from Queue to Queue!

What I´m looking for is:

1. TE loads item from Queue2 (NN1)
2. TE drives to NN2
3. Crane takes Item while TE waits
4. Crane moves Item to Queue8
5. TE goes back to a given Point (NN1)

I thought TASKTYPE_CALLSUBTASK could do this Job. But as far as I see, it doesn´t.

Attached my solution for this part.
Only strange thing that happens is, if you increase the maximum content of Queue2 higher than 1 there will be a moment when Crane starts to take items directly from there.

It´s not really important for me, because I only got content 1 there. But maybe anybody gots a hint for my fault? Probably only a bad pointer or something.

Thanks for your help Jörg.

Hello Sebastian,

you create the tasksequence to transport the item from the Queue2 away in the dispatcher OnMessage case 1. This Tasksequence is dispatched to dispatcher himself Line 16:

ts = createemptytasksequence(current,0,0);

The Taskexecuter is connected to Output Port Number 1. If the Taskexecuter is busy, but the crane is not, the transport tasksequence is sent to the crane at Output Port 2.

Jörg