topic Product sequence in jobshop system in FlexSim Forum

Product sequence in jobshop system

donia_m — Wed, 20 Apr 2022 13:37:47 GMT

[ FlexSim 22.0.1 ]

I have a problem concerning the modeling of a jobshop production system.

Indeed, the product gets stuck at the level of the stations Pm40_2 and Pm20, whereas I need the following sequence : Pm40 ->Pm30 ->Pm30_2 ->Pm20 -> Pm40_2 -> Pm20 -> Pm50 -> Queue1.

Please find attached the example

Thank you in advance for your help.

Best regards,

Re: Product sequence in jobshop system

moehlmann_fe — Thu, 21 Apr 2022 08:16:08 GMT

Since the Pm20 processor you need a way to tell to which connection the item should be send after processing. An easy way to do this would be to create a label on the item that signifies whether is has already been processed by Pm40_2 or not.

In the attached model I create this label in the "On Creation" trigger of the source, where its inital value is set to 0. In the "On Process Finish" trigger of Pm40_2, the label value is changed to 1.

In the "Send to Port" option of Pm20, the option "Conditional Port" allows you to define a condition. Depending on whether that condition is true or false, the item is send to the respective connection.

If you have more than two connection, "Port by Case" allows you to specify a port rank for multiple possible values.

v0-fm.fsm

Re: Product sequence in jobshop system

donia_m — Thu, 21 Apr 2022 09:46:27 GMT

@Felix Möhlmann Thank you very much!

Best regards