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Found 1,354 results

  1. I am working on a simulation of a number of firms processing raw products. If I represent the firms as resources in a server -so that the server capacity represents the number of firms, how could I identify which resource/firm processed a certain batch of products? Can this be done with a server having a capacity of its own, or should I use a pool of (secondary) resources with id labels so I can use that id to label the product batch?
  2. I'm very new to simio, so I appreciate any and all help. Learning this on my own without an instructor to help at the moment. I have the model shown below. I've defined a sequence table so that it should flow from Source1 -> TransferNode4 -> Server2 -> TransferNode3 -> TransferNode2 -> Server8 -> Sink1. It primarily follows the sequence but occasionally one will go to Server1 then hop down to Server2. Why is it doing this and is there a way to stop this? Thanks!
  3. I am trying a simple assembly process where 2 entities are to be assembled to create a 3rd Entity. Hence I need to destroy 2 entities arriving at the server and create 3rd pre-defined entity. Can someone please help with how this can be achieved?
  4. You can use seperate servers (each has 1 capacity) each represents individual firms. Create entities (raw products) via a data table where you should also include one column (a node property from object reference property) to represent where the created entity will be processed (as its destination). Then at the output node of the source object set entity destination type property to specific. Then set node name to Table1.NodeInstanceProperty1. The entities will be routed appropriately.
  5. Hi all, I was wondering, is it possible to record the time in system of entity instances and subsequently plot the values in a histogram? Of course, I can see the average, min and max values in the results tab, but I am interested in knowing what the distribution is like for model validation purposes. If it is not possible to plot the values in Simio, is it perhaps still possible to access and export the values, i.e. to a .csv document? Hopefully my question is clear. Best regards, Michkel Mariegaard
  6. Hi I want the selection weight of the paths to change by the entity type. Ideally if it can be chosen from a data-table. Example: From server1 to server2, server3 and server4 PartA - server 3 Weight 2 server4 weight 8 PartB - Server2 weight 3 Server3 weight 4 Server4 weight 3 Can someone help me to find a solution for it? Thank you!
  7. Hi everybody! I want to know if it is possible that an entity can change from one server to another if the another server is available and the entity isn't still processing. It means if it is possible that an entity can exit from the input buffer of the first server. Thanks for your help. Best, Albert.
  8. Hello everyone, I am a master's student in operations management trying my hand at Simio for the first time. I want to develop a model that simulates the delays incurred by variable supply lead times which may lead to stock-outs at a manufacturing plant. I would like to model demand so that each entity generated by a single source module corresponds to a sales order. Each order should have a probability to include orders for several specific product types (since sales orders may contain orders for different product types). As such, entities should have an arrival rate which corresponds to the arrival rate of orders at the company, and the product mix of each order should reference the probability of a given product type being included in that order (i.e. product A has 25% probability to be included, product B has 50%, etc.). Is it possible to do this? I would also like for each product type to be associated with a specific BOM. I.e., a server module should reference each entity instance to consume material as defined by the BOM’s of the products stated by the entity instance. I have defined each component as material elements and defined a BOM for each finished product that references the materials needed. However, in the server module I am only able to input a specific type of finished product as material requirements... Your help is greatly appreciated!
  9. Let's say I want exactly 100 entities arrive where the arrival of each one follows a normal distribution with mean 1 hour and standard deviation of 5 minutes from the start of the simulation. How can I model that within SIMIO? The interarrival time doesn't make sense because I don't know / care what the interrarrival time between each entity is. I realize that I could randomly generate 100 normal random variables outside of SIMIO and input them all as an appointment, but I am wondering if there is a better way especially if I want to do many replications with a different set of 100 random variables each time.
  10. I have an entity type. 50% of that entity is one counter type while the other 50% is two counter type. After the entity exits the server, 50% must exit while the other 50% must go to the second counter. How do i do this thanks
  11. Hi, Have an issue relating to trying to track a segmented entity with the camera. I've attached a very simple model that demonstrates the problem. As soon as i set the draw type to 'Segemented' the camera tracking just doesn't work. One possible solution i am aware of is to simulate the segmented object as individual entities. In the context of what i'm trying to do this creates a lot of additional complexity that i don't want to address. Any other bright ideas? Thanks, Lucas Camera Tracking Segmented Entity.spfx
  12. Hello together, would be very thankful for any advice: I have a sequence table with sequences according to their workstations: A - B - C - D If I only have one operator, they can just be done one after another. If I have 2 Operators A and B can be done simultaneously to C. How can I model this? The problem is probably, that the entity (batch) has to be splitted to let workstation A and C run at the same time. I tried it with process-add-ons like creating a second entity and transfer it to Station C. There might be a much easier solution?! Thank you in advance!
  13. Hello, I am fairly new to Simio and having a bit of an issue trying to understand how I can create the pull down option for "ModelEntity.Row", when trying using an "Assign" step to set the Entity Weight. I hope this makes sense and I have attached a few pictures. The first is a screenshot of my process in the simulation I am working, and as can be seen I do not get an option that reads "ModelEntity.Row" and/or "ModelEntity.RowOreWaste". the last two pictures are from simulations I am using as reference when creating my process and simulation model. thank you
  14. I want to set a timer that represents "time of failure" where if the entity is not processed within this time, it will be deemed a failure and be destroyed. This time needs to be dependent on a random draw (one for entity type, and one for a distribution based on entity type). I also need to be able to change this time due to interventions that happen. Is it possible to do this?
  15. It is possible. There's several ways to solve this. It is just a matter of model designing. Some tips: 1. You can use expressions like TimeNow or ModelEntity.TimeInSystem to check how much time processing time has passed. 2. Interrupt step might help you remove the entity from the process. 3. A State inside the ModelEntity will help your entities to take the right path or take the right decisions. Open you entity model, create a boolean state named Failed (or whatever the name you like), set ModelEntity.Failed to True or False, and use this same expression to steer you entity to the right direction. 4. Be creative. Your solution heavily depends on your problem.
  16. Sorry if this is obvious, but can someone tell me how I can reference the number of batchMembers in the example above without having to reference the specific entity, which in this case is TruckLoad.5442. I need something like "the number of batchMembers in the entity currently in the ParentInputBuffer" please. e.g. TruckBay1Batch.ParentInputBuffer.Content.???.BatchMembersCount? As you'd expect, this number changes constantly during the simulation run. At this moment of simulated time, the answer is 2. Thanks for your help!
  17. Hi, I'm already assigning resources based on priority, but if I have a high-priority entity hit a certain point and there are no resources available (capacity ==0), I want to branch off and have a resource "stolen" from a lower priority entity so that my high-pri entity can get service. Does this imply a release-seize? Maybe I could fire an event and all my low-pri processes are listening to do a release? But how could I make it so that not everyone dumps their resource? Or is this a "Move"? Note that there isn't actual movement, so I'm not sure if this applies. Any tips gratefully received! I'm not sure even how to use "Candidate" well, in order to see if the "Candidate"s Owner is a low-pri entity or not.
  18. Hi, I am looking for an event which can be used in a Wait step in a process which is triggered by an entity finishing processing in a station. Also potentially an event which is triggered when an entity exits a station. Do I have to manually fire an event with an addon process from every station which I wish to do this?
  19. I'm making a simple simulation model of a hospital and I'm having trouble with the routing of my model. For instance, a patient first goes through ED and then to OR. if there is no room in the OR, then the patient must stay in ED. How can I model this? I don't want the patient to wait at any input or output buffer, because then it assumes that the ED bed that the patient used to stay in is now free but it actually isn't. Each bed is modeled as a server and there are more ED beds than there are OR beds. Naturally, all ED beds connect to a single transfer node, which then connect to all OR beds.
  20. Hi, In my project, I have the (main) model of object type 'fixed' and a model of object type 'server'. In one of the processes executed by the model 'server', I want to add a search step that searches a specific entity in the entity population of the main model. How can I do this? Thanks in advance! Kind regards, Christa
  21. There's the expression Is.Entity that return 1 (in case it is the right entity) or 0 (if it is not). About your example, assign these expressions in the Selection Weight properties of the paths: To Server2: 3 * Is.PartB To Server3: 2 * Is.PartA + 4 * Is.PartB To Server4: 8 * Is.PartA + 3 * Is.PartB Check the attached model to see how it works. Selection Weight.spfx
  22. Check my attached model. I'm not sure if this was the best approach, but it works. I created two events: One is triggered 100 times to executes another process 100 times. Each process will run its own Delay step and fire the second event to trigger the source. Let me know if this isn't what you need. 100 entities.spfx
  23. jdc1625

    Arrival rate

    Hi Alb, What I would suggest is for you to use process logic to create your order entities rather than a source. The Create process step can be used to create entities just like a source, and you can put in logic that looks up the percentages. I would also suggest you use timers or perhaps a source to just create trigger entities that tells your model when to fire events (perform logic). For example, in your above case, perhaps have a source that creates an entity at 7pm, 7:30pm, and 8pm. These entities then trigger the process to be executed that decides the percentage of entities to be created at each time.
  24. Hi, I am trying to demonstrate a manufacturing process flow, by doing so I want to show a visual progression of the entity through the entirety of the simulation. Setting Random Symbol on to 'True' is not what I am looking for. I have 10 entity symbols and they have to change specifically between servers. How is that possible? Thanks,
  25. Hello, I have tried to make a table with reference to two entities and their process times, but when I go to Model.Process to model Begin - SetTable - End, I can not find the SetTable step beneath all steps. I have looked at the youtube video named "Simio Simulation Sofware: Referencing entity data in Data Tables" I don't want a product mix as used in the video, because I have a rate table for each entity. The system consists of one the following, reference to the photo below:
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