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Delay in unloading the part by the worker

Valued Contributor
Valued Contributor

Hi all

 

I have a logic issue, where three machines operated by a single operator needs to perform loading and unloading of the parts from the respective buffers of the machines to the machines. These three machines are sequentially connected one after the other and the succeeding machines can receive the part only when the preceeding station has completed processing.

 

Now the problem is, at one point of time when any two of three machines say A and C rises request that its empty and needs part for processing, the availability of the worker is baffled and the simulation halts. So i need to create a logic at this instant in such a way that which ever the workplace is nearby to the worker, he has to load and unload the part to the machine. I am not aware of such logic and neither i could find any in the examples. Could you please help me sort out this issue.

4 REPLIES 4

Re: Delay in unloading the part by the worker

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor
it is quite the same like here:

https://community.plm.automation.siemens.com/t5/Plant-Simulation-Forum/Worker-Movement-Problem/m-p/3...

You can control it with the exit controls of the machines, the worker has to unload from the end to the start of the machine-sequence; try a simple variant: wait until the successor is empty --> @.move; this should prevent the movement to a already occupied machine
Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net

Re: Delay in unloading the part by the worker

Valued Contributor
Valued Contributor

Hi,

 

Though i had used the logic input to the buffer as discussed before, at one point of time when any two of three machines say A and C rises request that its empty and needs part for processing, the availability of the worker is baffled and the simulation halts. I have attached the model for your reference.In the model the machines A and C refers to SVM1 and SHM1 respectively.

Re: Delay in unloading the part by the worker

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor
there is something wrong with the transferstation at workplace16
Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net

Re: Delay in unloading the part by the worker

Valued Contributor
Valued Contributor
Workplace 16 is the workplace of the buffer which is linked to the 5th machine which seems to be ok , where as the delay in loading and unloading is seen with 2nd , 3rd and 4th machines respectively due to dynamic nature . I am unable to create a logic or intelligence for the worker on loading and unloading the parts which ever is near and available. Regards