Create items in tote and use operator to process each item.

Question

question

Preet asked Apr 18 2023 at 10:37 PM Felix Möhlmann edited Apr 21 2023 at 5:24 PM

Create items in tote and use operator to process each item.

Hello!

I have a big model with ~80 processors that process totes using operators. However, now I have a twist in the requirement and I need to create items in in a tote (anywhere from 1 to 6) and use the operator to process each item (using log normal 2 distribution) and track how many items they processed as a parameter for the output. How would I do that? I am attaching a sample model with 1 stations. I tried several things but nothing worked out. How want below things in the model.

1) Create items between 1 to 6 qty in each tote generated from the source?

2) When it arrives at the station, the operator process each item and takes time based on the lognormal 2distribution?

3) Track how many items they processed for far in dashboard or performance measure so that later on that can be used to calculate throughput.

multiple_items.fsm

Software Version:

FlexSim 23.0.2

items in tote

multiple-items.fsm (53.1 KiB)

______

Cookie preferences

Your privacy is important to us and so is an optimal experience. To help us customize information and build applications, we collect data about your use of this site.

May we collect and use your data?

Learn more about the Third Party Services we use and our Privacy Statement.

Strictly necessary – required for our site to work and to provide services to you

These cookies allow us to record your preferences or login information, respond to your requests or fulfill items in your shopping cart.

YES

Improve your experience – allows us to show you what is relevant to you

These cookies enable us to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we use to deliver information and experiences tailored to you. If you do not allow these cookies, some or all of these services may not be available for you.

YES

NO

Customize your advertising – permits us to offer targeted advertising to you

These cookies collect data about you based on your activities and interests in order to show you relevant ads and to track effectiveness. By collecting this data, the ads you see will be more tailored to your interests. If you do not allow these cookies, you will experience less targeted advertising.

YES

NO

Are you sure you want a less customized experience?

We can access your data only if you select "yes" for the categories on the previous screen. This lets us tailor our marketing so that it's more relevant for you. You can change your settings at any time by visiting our privacy statement

Your experience. Your choice.

We care about your privacy. The data we collect helps us understand how you use our products, what information you might be interested in, and what we can improve to make your engagement with Autodesk more rewarding.

May we collect and use your data to tailor your experience?

Explore the benefits of a customized experience by managing your privacy settings for this site or visit our Privacy Statement to learn more about your options.

Answer 1 · 2023-04-19T09:57:24Z

Jason Lightfoot answered Apr 19 2023 at 9:57 AM Felix Möhlmann edited Apr 21 2023 at 5:24 PM

One approach:

Make one of the processors the template and the rest instances of that (see Object Templates in the user manual)
Use a label to indicate on each tote how many items it contains.
Put an expression on the processor (template master) for the processing time similar to this:

double ptime=0;
for (int n=item.numItems;n>0;n--)
      ptime+=lognormal2(0,10,2,getstream(current);
return ptime;

Increment a label on each processor for the total items processed (or optionally use a tracked variable label).

· 7

Preet commented · Apr 19 2023 at 4:34 PM

Hi @Jason Lightfoot ! Thanks for the answer.

I was able to generate items in the tote but being new to Flexsim, I was not successful in creating labels would track number of items in the tote. How would I do that? Also, where is the option to put the expression in the processor? Attaching the updated model.

multiple_items.fsm

0 ·

multiple-items.fsm (54.3 KiB)

Jason Lightfoot ♦♦ Preet commented · Apr 19 2023 at 6:10 PM

If you're creating the items in the tote you can just find the content using

item.subnodes.length

Use the script icon to open the code window and delete everything - then past this in:

Object current = ownerobject(c);
Object item = param(1);
double ptime=0;
for (int n=item.subnodes.length;n>0;n--)
      ptime+=lognormal2(0,10,2,getstream(current);
return ptime;

0 ·

Preet Jason Lightfoot ♦♦ commented · Apr 19 2023 at 10:32 PM

That worked fine. Thank you. Attaching the final model for reference.

multiple_items.fsm

0 ·

multiple-items.fsm (61.2 KiB)

Show more comments

Answer 2 · 2023-04-19T04:20:27Z

Joerg Vogel answered Apr 19 2023 at 4:20 AM

You can replace processors by multiprocessors, if you do this with a 3D logic. A multiprocessor can do at an object several processes at an item. Your item is a tote. Number of processes is your number of items.

You can do this also with a Process Flow processor which runs several sub process flows for amount of items in a tote. Each sub process flow gets executed one by one.

question