Seizing an unavailable resource in process flow does not stop item

Question

question

Kathryn McNeal asked Oct 11 2016 at 11:06 PM Sam Stubbs commented Oct 18 2016 at 9:26 PM

Seizing an unavailable resource in process flow does not stop item

In the model attached, there are two processors in the model, but only a single resource available in the process flow. For some reason, items are still going through both processors simultaneously, even if they have not successfully retrieved that resource. I would expect that if a resource is unavailable at the "acquire" step, that the token would stop there, preventing the object that initiated the token from moving forward as well. How do I make both the token AND the object wait until the resource is available?

Software Version:

FlexSim 16.1.2

process flow resource stop object acquire

flexsim-help.fsm (21.1 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 · 2016-10-12T06:54:15Z

Steven Hamoen answered Oct 12 2016 at 6:54 AM Steven Hamoen commented Oct 12 2016 at 8:53 PM

@Kathryn McNeal There is no link between your processflow resource and the actual resources in your model. Your processflow resource is just numeric and 1 and as you see in your processflow there is only 1 token passing and the other tokens are waiting in the acquire so the model behaves correctly. If you want to link the resource to your 3D model, put both processors in a group and on the resource reference, reference the processor group you just made.

· 2

Kathryn McNeal commented · Oct 12 2016 at 3:52 PM

I tried to implement this in the attached model, but it still doesn't seem to be working for me. What else am I missing?

0 ·

3015-flexsim-help.fsm (21.4 KiB)

Steven Hamoen Kathryn McNeal commented · Oct 12 2016 at 8:53 PM

@Kathryn McNeal

My solution was not correct because if you acquire a processor resource in the process flow, only then the item in the 3D should pass to the processor and because you had a port connection in the 3D they will also continue in there as well. So either control the flow in process flow or in 3D but not in both.

So I changed the model a little. I removed the link between the queue and the processor and let the moving be done in the process flow. And because processor 6 and 9 are serial you only have to acquire the first processor and release when it passes the last one.

When the flowitem enters the queue, the source generates a token and a label with the item is placed on that token. Next when a processor is available the process flow passes on the item to the processor. And then in the waitonevent activity I made sure that the correct token is released by checking the label. I hope that this model is more what you are looking for.

3044-3015-flexsim-help-tal.fsm

0 ·

3044-3015-flexsim-help-tal.fsm (21.9 KiB)

Answer 2 · 2016-10-12T06:56:27Z

David Besson answered Oct 12 2016 at 6:56 AM Sam Stubbs commented Oct 18 2016 at 9:26 PM

The 3D logic only triggers events in your ProcessFlow logic BUT is not influenced by it in return.

One solution could be to build a SubFlow for the "Pick Operator" field on the Processors (3D logic -> ProcessFlow). Then the SubFlow stops the Processor if no resources are available (ProcessFlow -> 3D logic).

I hope this will help you.

3015-flexsim-help-subflow.fsm

3015-flexsim-help-subflow.fsm (21.4 KiB)

· 1

question