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error:workplace is not free


Hello Everyone,


In my model, there is only one workplace(for In-product and Out-product) assigned for all stations. But problem is whenever some worker(with In-product) already occupird workplace and that time Out-product complete their processing time and they call worker(Exit strategy--Carry part away),then its create problem of "station does not have a free workplace" and stopped simulation. How can i solve this problem?



Thanks in advance


Re: error:workplace is not free

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor
1.) add a second workplace
2.) wait if you transport a part to a station, until this station is empty

waituntil nextStation.empty
Steffen Bangsow
freelance simulation specialist  

Re: error:workplace is not free


Hello sir,

Thanks for your reply.

i can not use waituntil statement because in my Masterthesis model all product distributed from Buffer(FIFO strategy) to other station (according to resource plan table-Different for all product).

Now, Buffer has series of 100 product(A,B,c...). If next station for Product A is not free then it will wait on Buffer.So all product which stand behind A are waiting there but next station for other product is free.Its loss of effeciency.

Other constarin, i can not move Product A to other Buffer2 and wait there until next station is free.

Can you suggest any other concept?


For workplace: Can we assign 1 workplace only for In parts other workplace for exit part?

Thanks in advance