topic Re: Rotating Disk Sorter Imitation in FlexSim Forum

Rotating Disk Sorter Imitation

afthab_l — Wed, 11 Aug 2021 00:51:00 GMT

Hi,

Recently I've been trying to imitate the behavior of a disk sorter. When a package arrives, the disk sorter rotates to the direction the package needs to go. However, when a package arrives that needs to go to another direction, the disk sorter should rotate back to the original position and this requires some time. So my question is, how do I add a delay when the package is being sent to a different direction. Items that follow which are being sent in the same direction do not need this delay. The delay should be added as a start up time delay.

I've tried to use conveyor stop item and delay but this adds the delay to every single package of that type irregardless whether the next one is going in the same direction. Any help would be appreciated.

Sorter Seperation Problem.fsm

Re: Rotating Disk Sorter Imitation

moehlmann_fe — Wed, 11 Aug 2021 06:11:41 GMT

I would add a label to the Decision Point, that stores the direction the sorter is currently set to. This label can then be compared to the direction the item needs to go. The delay is only triggered if they are different (condition in "Stop Item and Delay" option). Then the label gets updated to the new direction.

sorter-seperation-problem-fm.fsm

In the model I also added the direction as an extra label on the items in the first DP on the conveyor to make the logic of the "sorter" DP a little simpler.

Re: Rotating Disk Sorter Imitation

afthab_l — Wed, 11 Aug 2021 07:21:52 GMT

This works perfectly. May I please ask on what language is the coding based on (It looks like C++), if not where can I find the relevant commands?

Thank you so much by the way! Appreciate it a lot!

Re: Rotating Disk Sorter Imitation

moehlmann_fe — Wed, 11 Aug 2021 08:06:43 GMT

FlexScript, the coding language of FlexSim is indeed based on C++. You can find an introduction and a class/command reference here:

https://docs.flexsim.com/en/21.2/Reference/CodingInFlexSim/WritingLogic/

Re: Rotating Disk Sorter Imitation

afthab_l — Thu, 12 Aug 2021 07:30:45 GMT

Thank you so much!