problem with operator-network

[Al_spyro]

Hi,
Dear incontrol,
im fresh in using ED so i decided to model a operator-Network system. i tried it out but i had some problem with this model which i attached here. A serviceman is going to service 5 machines and he use a network to reach machines. each machine has a breackdown and repair time so after each repairing process , the operator must have became free to servic other machines. in model i build it does'nt happen appropriately. i'll appreciate your answer.
thnx

[marlies]

Hi,

Instead of using FreeOperators(in(2,c),c) you should use: FreeOperators(in(2,c),first(c)). The operator is connected to the product within the server.

Regards, Marlies

[Al_spyro]

Hi marlies,
thanks for your answer. i changed 4Ds as you said. for a few minatus it works good but suddenly this message appear in Tracer window "incorrect job reference in statement freeoperators." then the operator stuck in a Machine and the whole line blocked. i didnt know what is wrong with the model so i attach the renovated model in hope of your help.

[marlies]

Hi,

Yes, that's because you deselected the option "busy time" for the breakdown parameters. At this moment calling operators during breakdown is only possible when you take the following into account:
- It can only be used when the option "busy time" is selected.
- You should use the reference first(c) in the freeoperators function.

See attached model.

Regards, Marlies

[Al_spyro]

Hi,
yes , i deselected "busy time" option and that was the problem
THNX marlies