A Task Executer should receive two tasksequence from dispatcher...

I want to make a task executer start moving to destination whenever receiving two tasksequence from some dispatchers.
Which commands does it need to do it?

Some more details, Task Executer should transfer two items to two destinations sequentially. But two destinations have different available time.

TE should wait till the last destination need time though the first destination is determined.

I want anyone's help.

I would close both output ports and let the 2 destinations send a message to the taskexecuter when it is ready to receive something. When you have received 2 messages, open the output of the sending objects and off you go!

In the case of pull flow, your idea is good. But I have already made the model push type and I can't change it to pull type.

To change the code developed till now to the pull is very hard work, I think and I have not the time to change it.

Sending objects are two and destinations are ten.
I uploaded the test model to 'Straight Line Network AGV model' afew days ago.

Is there another way?

Thanks.

OK other idea:
When the TE is ready with unloading give it a utilize task.

When you send a tasksequence to the TE send a message after it. If the TE receives 2 messages you do freeoperators() and the TE starts to process both tasksequences

Dear Steven.
If one tasksequence is dispatched to TE, the TE begin to start the first tasksequence without generating the second tasksequence.

1) generating the first tasksequence when downstream available
2) waiting till the second tasksequence generating without dispatching the first TS.
3) after generating the second TS, dispatch both two TSs sequentially

Is it possible?

I uploaded the exercise model.

You can make the situation as setting the global variable 'InspVar' to 60.

Thanks.

yes that is possible, set a flag somewhere with the pointer to the tasksequence and when you create the second one check if the flag is not 0. If so, dispatch both tasksequences.

Dear Steven.

I want to know how to handle with the tasksequence created from other dispatcher.

Two objects of dispatcher use one TE and the first dispatcher create the first TS to the TSqueue and waiting with not dispatch it to the TE.
And the second object create the second TS and then dispatch the first TS of the first one & the second TS of itself in sequential.

The two tasksequences should be done like that.
And many dynamic TSs of high priority is created between both two TS.
And then the other instances TS of same TS maybe be created to be added in the TSqueue from the two objects among them.

But I want to know how the first TS to be dispatched from the second object.

Thanks.

P.S

During one pair TS is done, the other pairs is created from both objects and added in the TSqueue.

Please ignore my post. Thanks!
you can insert in the second tasksequence a break task with involved2 as reference to the first tasksequence.

Jörg

If you create a tasksequence with:
treenode MyTs = createemptytasksequenc(........);

MyTs is a pointer to the tasksequence
So you can make a global variable of type double and on reset make it 0. Then instead of doing dispatchtasksequence you set the global variable:

GlobalTsFlag = tonum( MyTs);

and then when you create a second tasksequence you say:

if( GlobalTsFlag > 0) dispatchtasksequence( tonode( GlobalTsFlag));

But I have taken a look at your model and in these situation we usually create a control object and send messages to that object. Then on those messages the control object find out what it has to do and create all the needed tasksequences (or maybe one big one) and then dispatches it.

A Control object means 'Dispatcher' object?
Or if that is fixed object, any object is OK?

I have solved my problem using close & open port till two items finished as you said first in this forum. Thank you for your help.

But I want to know your meaning of using 'control object' in more detail.
I hope your detail explanation about your usual method.

Thanks a lot.

Any object can function as a control object, you just need a onmessage eventhandler. We usually take a basicFR but actually any object will do.