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dsturrock last won the day on September 22

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    Simio LLC

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  1. We continue to welcome volunteer involvement in our student competitions. 1) We welcome ideas for new competition problems. 2) We welcome your involvement in creating a problem. This could be scaled to any level ... from simply providing some detailed modeling situations and possibly blinded data up to public sponsorship and recognition of your organizations involvement. 3) If you would like to practice your skills by getting early access to a draft of the problem, we would welcome your involveent as long as you have no other competition involvement and commit to secrecy :). 4) We are always looking for judges. It typically requires a time commitment of about 6-8 hours spread out over about 7-10 days. Please contact me (dsturrock@simio.com or academic@simio.com) if you can help us with any of the above. Thanks in advance, Dave Sturrock
  2. The SkyBox icon on the View Ribbon opens a library of static and dynamic scenes that can be placed in the 3D animation. Dynamic scenery includes several options for clouds that move with the animation as the model runs. Typically, the Speed Factor should be set to 5 - 10 or greater to see movement. Static skybox options include many indoor and outdoor scenes. Indoor applications include adding building walls to surround your model. The 'None' option will remove any existing skybox. Users can create their own SkyBoxes as well. The “library” skyboxes are simply *.zip files with images inside them with the names front, back, left, right, top, bottom. They don’t need to have all of those names in them, Simio will use whatever ones it finds. They are located in the Skybox folder under \Public\PublicDocuments\Simio. Note when you first apply the SkyBox, you can only view it in 3D and you may need to use the Ctrl Scroll wheel to move the camera down to where you can see the horizon. There are over 20 SkyBoxes that are installed with Simio. A few more are attached below. Simply download and save these zip files in the C:\Users\Public\Documents\Simio\SkyBox folder. The next time you open Simio you should see something like this under SkyBox options: Here is an example of the MFGPlant SkyBox with a server in the foreground: If you create your own skybox images that you feel might be useful to others, please share them here. Hospital.zip MFGPlant.zip Warehouse.zip Airport.zip CleanMFGFacility.zip NEW NOTE: We just decided to reduce the size of these and some existing skybox files and include them all in Sprint 215. So it is probably better that you just wait a bit unless your need is urgent.
  3. Llario, Thank you for the offer. You are correct that I don't see many current sales in Bulgaria. Do you think a Bulgarian translation of the software would make a significant difference? It is fairly easy to generate a machine translation, but can be fairly tedious to clean up mistakes in the machine translation.
  4. People often miss the fact that a Combiner is basically just a Server with some extra combining logic. It sounds like that is exactly what you need here. Replace your Server with a Combiner, then immediately follow your Combiner with a Separator to restore the entities to their individual members.
  5. I have attached a simple example of one approach. 1) I edited the ModelEntity object and added a state array of type MatrixFromTable. This type of array is automatically initialized from a table. Ideally I might have also added a table to the entity, but Simio doesn't work that way. Instead, I added a RepeatGroup named InitializationValues consisting of a Real property. I used this repeat group as a way to essentially add a "table" into the object, since internal to Simio there is almost no difference between a table and a repeat group. 2) Back in the model I added a table and then imported data into that table from Excel. I used 10 rows, but I could have imported 350 rows with no change to anything else. 3) Now when you place the ModelEntity object into a model, you can pass a table into the InitializationValues repeat group. Again, intead of just typing a bunch of values into the repeat group, I just say go get the whole repeat group from a specified table. This has the result of sizing that state array inside the model entity to match the current size of the table, and then initializing the state values to whatever is in the table. 4) If you run the model, you can open the Watch window on any entity and view the values of its states. I expect this won't solve all your problems, but maybe it will give you a fresh approach to consider. ImportStateValues.spfx ImportStateValues.xlsx
  6. I ran your model until the warning occurs and then examined the Content and Throughput categories in your Results Pivot Grid. I didn't notice any alarming buildups in any of the Combiners, Conveyors, or Servers, but the Entity statistics appear unusual: None of your 3 entity types ever exit the system. Your problem is with creation of too many empty pallets. Another thing I noticed that could be the main problem is that your Empty Pallet source creates 6 empty pallets every .25 minutes, with no limit. When I converted this to a just-in-time (Event Based) creation the entity limit problem went away for that entity type: To answer your specific question, on the Project Home ribbon there is a place to open a Breakpoints window that allows a lot of flexibility to trigger a model break (pause) when a specific condition occurs. I hope this helps.
  7. A couple quick thoughts: Both from your description and from what I know about chair lifts, it seem that using a conveyor might be the best modeling approach. You might consider using a combiner instead of a server to synchronize all waiting skiers together into a lift car.
  8. First, do you really need 5000 different entity instances? What makes them differ from each other? In general, a better approach is to have one, or a few, entity instances, and perhaps add a state (or possibly a property) that indicates their difference from each other (like PartNum, Color, Part Family, Sequence Followed, ...). But assuming you have a good reason for this approach, what you need to do is take advantage of the AutoCreateInstance feature as illustrated in the screen shot. While it is not required, in general when you automatically create instances, you also want to specify where they are displayed. So I added a XLocation column to your data file. When you import that data file, the entity instances are automatically created in your facility view. CVOR Data Table.csv CVOR v2.spfx
  9. As you indicated, you can open and run an RPS or Enterprise model in Professional or Team. But Professional/Team is NOT designed as a "run time" version for scheduling. You cannot see, change, or take advantage of the scheduling-specific features. But I believe that you could change the model, save it, and reload into Enterprise and I think you will not lose any Enterprise features.
  10. Absolutely. Look at SimBits that reference Task Sequences.
  11. Using paths and networks this is pretty easy. You can specify that a worker follows a given network and that network can prevent him from traveling in forbidden areas - for example a visitor network vs an employee network. I expect it is possible in free space but it would likely involve user written code (steering behavior, ...) or some cleverness. But I can't help much beyond that.
  12. To start with, Destinations in Simio are always nodes. So the table should have a column of type Object Reference Property > Node. Although its not on the pull-down list, when you specify a entity destination as Select From List, you can also specify a table column of type node list and it will automatically respect the table rows associated with that entity. Model_RandomRow_FilteredTable.spfx
  13. For each location where you want to start a time interval (Server 1 and "the very beginning" in your example) you would need to add a state to the ModelEntity (NOT to the model). Then for each place you want to end a time interval (server6, "the very end", and server4 in your example), you would need to add a TallyStatistic element and Tally and observation at the point. For example to record the time between between Server1 and Server6: create a modelentity state named TimeDepartingServer1 assign TimeDepartingServer1 the value of TimeNow when entity departs Server1 create a TallyStatistic element named Server1ToServer6Time record a Tally observation (using node or Tally step) at Server6 recording the value TimeNow-TimeDepartingServer1 to Server1ToServer6Time add a status or floor label using the expression Server1ToServer6Time.Average
  14. Yes, you can certainly model this in Simio, and can easily make it terminating. I would suggest reviewing any simulation textbook for verification and validation techniques. The general answer for number of replications is to run for a few (5-10?) replications and look at the half-width on your key output measures. If the HW is too wide, then run additional replications until all your key measures are at the precision you need.
  15. Tricky problem. If you had posted this in a Simio Insiders forum instead of the public forum I could have replied with a model and figures. I would probably take the opposite approach - instead of adding additional "fake" machines, I would consider representing each workcell as a single server that makes use of associated resources for metrology, CNC, and airblast. I'd use Task Sequences to do the sequential processing of each part, then use the associated Loopback feature of Task Sequences to start over with the subsequent parts. There are a number of SimBits demonstrating task sequences. Unfortunately the only one demonstrating loopback (ServerUsingTaskSequencesWithDataTables_Loopback) uses data tables (which complicates things) but you might get the idea. Or you could do a similar approach with process logic steps. If you repost this in Simio Insiders you might get more help.
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