topic Re: items pulling from List in FlexSim Forum

items pulling from List

christoph_gruberYEAZC — Fri, 10 Jul 2020 10:28:51 GMT

[ FlexSim 20.1.3 ]

I will build a simple model. But a lot of problems appears.

Before I worked through the Tutorial 4 -Process Flow Instances!

Have to put pallets with a robot from a queue to another. And if the first queue is emty an AGV have to bring new pallets.

Problem 1: request number in pull from list not works correct - I don´t know why?

Problem 2: when I used the robot instead of a processor there is a error message!

Problem 3: the AGV don´t load 8 pallets per transport. What´s wrong in my PF logic. The label "EmtyPallet" on the token is an Array - have I used subflows to load al 8 pallets per transport?

PF_Robot_Test.fsm - with a processor

PF_Robot_Test.fsm

PF_Robot_Test_1.fsm - the same model with a robot

PF_Robot_Test_1.fsm

Great thanks for helping me in advance

Re: items pulling from List

joerg_vogel_HsH — Fri, 10 Jul 2020 11:26:04 GMT

Sure it does what you want, you have TWO pull from list activities in Pallet Usage!
Yes, it has something to do with stop object in Pallet Usage! If you deactivate this Process the model works fine!
If you parse an array in a load activity, only the first element of the array is evaluated! Indeed you need a run sub flow structure.

pf_robot_test_jv.fsm

Re: items pulling from List

christoph_gruberYEAZC — Fri, 10 Jul 2020 18:28:25 GMT

Thank you so much @joerg.vogel

Now I see, problem 1 and poblem 2 belongs together. When I change the rank in the first "Pull from List" object in "Pallet Usage" the problems disappears!

The picture below shows the right rank.

Re: items pulling from List

christoph_gruberYEAZC — Fri, 10 Jul 2020 19:13:15 GMT

@joerg.vogel

sorry I forgot, that is the final model that works in my way 🙂 thanks again Jörg for you hint!

PF_Robot_Final.fsm