Operators dependency

Hi guys I am new to flexsim...

I am trying to built a model in which three operators have individual operations to do in a processor if a part comes ( for example each have some 5 operations to do ).

In certain cases , an operator might depend on other operators to finish his work ( for example , operator1 can do his 3rd operation only if operator 2 and 3 finish their second operations assinged to them ). So an operator has to wait till others finishes.

Guys....how to model this dependency between operators in flexsim..


Thanks in advance.

Easiest way for me would be to use as many processors as operations you got. Connect all operators with there processors / operations they are needed for.
If it has to look like only one processor you can give all processors the same position. But this will bring you to the problem that maybe all operators will go to same position for using the processor. Than think about using Networknodes for different operators. They all have to be connected with processors.

Hope this was helpfully?

Ok, you even could do it with Multiprocessor. This should be much faster and easier;-)

Thanks for the reply.. Sure that is an easier way..

I have done the model using a single processor and "coordinated task sequence" for the 3 operartors.

But I dont know what to do for the second part of the problem - - operators dependency on others.

Each operation take different time... So an operator even after completing his operation ( for example operation no.2 of the 5 operations) has to wait/ remain idle for other operators to complete their operation no.2

and this is just an example.. any operator can depend on any other operator finishing a particular operation...

This don´t sounds as if a dispatcher would be helpful.
Did I understand you wright, that you use a processor instead of a multiprocessor? And Tasksequences make operators working on this one processor?
Maybe it is possible to solve it with sending delayed messages. But I think it will be better if you could upload an example model.

Guys I have attached the model here. Any suggestions in modeling the "operators dependancy ".

I have 5 parts p1 p2...p5 and each operator have 3 operations to do ( check global tables).

The custom code is in "pick operator" of the processor.

And in the current model , I get some errors in system console.. I dont Know what it means...

When you use insertproxytask() it returns a 'key' value for the task that can be used in 'sync' tasks using the command insertsynctask. This ensures the task sequence completes certain tasks before proceeding. From your description, when implemented correctly using sync tasks, the third operator will be in state ALLOCATED_IDLE while waiting for the other two to finish.

Thanks Jason.. I will try it and then ask further questions...