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  1. Hello everyone, I have a server which can potentially have many entities waiting in the input queue. All these entities have different priorities (as a model entity state variable). I want to retrieve these values to then select the highest one and put it on a status label to track this during the run. Is there an option to do this? Regards, MF
  2. I'm making a call center simio model. The 7 types of calls are generated at sources and then move down a path to a server. This server represents a queue that is formed at the call center. After the queue server the calls are transferred to 1 of 7 desks (which are represented by a server) where a call agent is working. How do I make it so the calls do not go to one of the server desks until a desk becomes available. As it currently stands the calls go right through the queue server and build up at some desks even if there are free desks available.
  3. Hello there, this is my first post here and I hope someone can help me with my problem. I´m quite new to Simio and working on my first project. I have some "return entities" that are considered "bad" at the end of the production. So they will get collected in a server which is used as a storage and get returned to the factory every 24 hours, to get reworked, if there is capacity left. Now, I want to check if there is capacity left in the destinated server and in best case, reserve the needed capacity before, before I route these entities towards it. After the entity arrived in the server, the reserved capacity should get released again. I couldn´t find a good example here in the forum or via google search, as in the SimBits, how to solve this the correct way. Maybe someone here can give me a tip, how to. Thanks in advance. Aljonator
  4. I've hunted through the forums and online and cannot seem to find a fix for my simple application. I have 1 worker operating multiple work centers (Simio server). He should finish all work at one "server" before moving on to the next server. Otherwise, his utilization goes down substantially due to him bouncing back and forth between the servers and walking all day. I.e. Server A: Parts in Que: 1,2,3,4,5,6 Server B: Parts in Que 1,2,3,4,5,6 Worker is doing A1, B1, A2, B2, A3, B3, A4, B4, A5, B5, A6, B6 with a walking time inbetween each part. I want worker to do A1, A2, A3, A4, A5, A6, walk, B1, B2, B3, B4, B5, B6 I would prefer not to use constraint logic due to the complexity. I've read that somehow the solution seems to lie in setting the Secondary Resources "Repeat Group" status to false and attempting to use the "keep reservation" function, however I have not had any luck. I set the "keep reservation if" function to "ServerA.InputBuffer.Contents.NumberWaiting > 0" which in theory should fix the problem, however my worker continues running back and forth. Any help would be appreciated. Thanks, Jon
  5. hello :), I'm trying to make a model with three servers. Everyone uses different Workers type and have different operation time per entity (no problem in these points). The difficult part is the next, every work center (server) has a different setup and changeover, and both happens without the presence of the entity. I mean the setup of some servers starts when the entity is created, (before the arrival to that server), and after the operation the changeover has to be done, in both cases we need to use or assing a worker. How can I do that?
  6. First of all, Thank you so much for the answer in advance, but could I bother anyone who answers with some example model or picture of the method I am still new to SIMIO, so I am concerned about following the advice correctly. 1) Let's say every day I have X number of people arriving( using distribution to generate numbers outside SIMIO randomly). This is the shop where people visit from 8.00 to 20.00 every day with different visit rates per hour (example as below), and I use X to time to this percentage so I can get the exact number of visits per hour. The problem is I want to make an arrival interval random with some sort of function/distribution or table(excel calculation), not a stable arrival rate. My idea is random from 0 to 1 and gives the random number (Y) to match with X outside SIMIO and put the whole table in, but I wonder, is there any better method than this? 2) The second question is about two entities from different sources, A and B. A and B will go through the same server for three servers, but after server 3, one will go to 4, and one will go to 5. Can you give me any advice on how to do that
  7. I wonder if it is possible to pick one particular entity from the BatchMembersQeue and unbatch it. For example I have a pallet with 10 entities batched (9 red and 1 blue) and I want to remove only the blue one. I was able to find the entity with a search step, but I cannot transfer it or unbach it. Any ideas? TnksUnbatch one entity.spfx
  8. Hi everyone, I am trying to model entities moving from 10 origins (sources) to 10 destinations (sinks). The entities are simultaneously created according to a certain mix (Entity1 (85%), Entity2 (10%), and Entity3 (5%). However, the number of entities created per event is according to a certain distribution. There is an OD-matrix that captures the number of entities moving from origin to a specific destination. Let's say there are 10 destinations, than the destinations of the Entities are determined according to the OD-matrix: Entity1 and Entity2 can move to any of of the sinks. Entity3 can only move to one specific sink. One solution I came up with was to add weights to Connectors and assign destinations using TransferNodes, but I think that this is very inefficient. I then started to work with DataTables, but I cannot figure out how to probabilistically assign the destinations of the entities. My question is: how to model the probabilistic destination assignment of Entities using DataTables in such a way that it is relatively easy and flexible to add or remove Sources/Sinks? I have added the model for you to see, I hope that you can help me! Many thanks in advance Simple_OD_creation.spfx
  9. I have a table that allowcate 5 gates will have different entity will launch in specify date and time. How can i do it ? We are designing a airport simulate aircraft departure its gate.
  10. Got issues with a combiner. i have a server that processes the member parts but has a 0.1 probability of going to scrap, this means the batch size has changed. the parent part has a integer state that gets updated when this happens but doesn't update the combiner batch quantity property. I have attached an image showing this issue. you can see the pallet number displayed which is the way i match the parts with the correct pallet. the pallet(parent) also displays the batch size using the same integer state which i use in the combiner logic. Theres a pallet with 4 items on it and it shows the batch is 4 so why wont that process it? Also attached the whole model so you can look at it all Batch and Scrap.spfx
  11. I am doing a Final Year Project with Simio. Our topic is discusing the taxiway routing problem to enhance aircraft congustion in the taxiway. Our group are the new to use simio, when we want to do some simulation on the taxiway, we dont know how to increse the same distence between different space of the entity(ie. airplane) in the path(ie. Taxiway). Also how to make the entity stay in the path while waiting the privious plane leave the runway? We would like to do the silulation like this video https://www.simio.com/applications/airports-and-airlines-simulation-software/ 1:08-1:30 Any one can help us?
  12. Hi! can you help me please? In my model I have a server that I want to function as storage, this server is linked to a combiner which will combine the member entities that leave the server with a parent entity that will arrive at it from another node. Each member entity has a state with a unique number linking it to a parent entity (there may be more than one member entity with the same state number). How can I extract from the server only the member entities whose state is equal to the state of the parent entity that arrives at the parentinput of the combiner? Thank you so much! 18.10.spfx
  13. Hello, please I need your help. I have a combiner in my model called Revisar_pedido, which fulfills its function without any problem until, at one point, an entity enters (Pedido_PU.597) and gets stuck inside it and I can't understand why it doesn't come out. I already checked the functions, processes and states and nothing seems wrong. I attach my model for better understanding. Beforehand thank you very much. 06.11.spfx
  14. Hello, I'm working on a problem where at some point a worker will transport a specific amount of pallets. Whereafter these pallets are processed by a server and a server wil process them. Once processed, a different worker (or the same worker) will move the pallets to the next server. How do I save these entities as a batch and let workers know how much pallets they can process? At the moment I have two approaches. One where I create a 'batch' as an entity and assign to it the amount of pallets. The 'problem' in that case is that I do need to count the amount of pallets at a server, since it has a certain capacity. And sometimes an initial batch whitch comes from a truck needs to be split to fit the capacity of workers. But once this would be fixed, the worker will always transport the right amount of pallets. A second approach that I have tried is to create the pallet entities normally, and assign a 'PalletHistory' in the modelEntity properties, but I find that after processing I can't find this palletHistory for the workers to get a sign of how many pallets to transport. Do any of you guys have an idea how I can approach this? Greetings
  15. How can I model where the robot always pick 2 parts and waits until 2 parts are available at output buffer of the server. (Robot is available in extras library). i have multiple servers in the model.
  16. Hi! In my model I have entities called "Pedido" which have a state called "id_del_pedido" which is equal to the ID of the entity. These entities will enter a Separator that will create copies of the entity according to a probability distribution. Since the new entities are copies of the parent entity, they will have the same "id_del_pedido" status as the parent entity. Subsequently, the entities created will enter a Server that acts as a warehouse. This Server is linked to a Combiner, when the parent entity reaches the Combiner's parentinput I want only entities whose "id_del_pedido" is equal to the ID of the entity that reached the Combiner's parentinput to leave the server. This works perfectly in the first Server-Combiner set of my model, but, the Combiner's outputnode is attached to another Combiner and I want to repeat the same activity as in the first Combiner but I get an error that I don't know how to solve. I attach my model so that my problem is better understood. Thank you very much in advance! 18.10.spfx
  17. Hello Everyone, please can someone help me with this situation? I want to use a Server as a storage place, entities coming out of it go into the MemberInput of a Combiner. I want the number of entities that leave the Server to depend on the state of the entity that will enter the ParentInput of the Combiner. How can I access the state of the parent entity that will enter the combiner from the Output Node of the Server? Thank you very much, Greetings! 14.10.spfx
  18. Hi, I have a bottleneck at the end of my assembly line. I cannot dupplicate that station as my total number of workers is already high. Before hiring, I would like to try and reallocate and have satellite employees. I want to allocate my workers to that station when the input buffer has exceeded one entity. Every worker has to finish the entity they are presently working on at the other stations and the first workers that are done need to go the bottleneck station. The rest of the time, the workers can be allocated based on the smallest distance to the work stations. The bottleneck station usually requests 4 workers. That information is already set up in a table. When there is two entities in queue in that buffer, I want workers to be able to go finish the work and hence increase the processing time by X. I have tried a lot of different things, and all my data is stored in relational tables. Thanks!
  19. The manufacturing line I am trying to simulate has two servers whose behavior I am having trouble modeling. First, these two servers are in parallel. Second, these servers process units in batches of 14. Third, I need both servers to not start a batch until at least 14 units are present in queue. Lastly, I need to pool the queue for both servers into a single queue. Any help would be appreciated. Thank you!
  20. Hello, I'm new to both the forum and the world of simio in general. I am trying to simulate how much the maximum buffer could be in 2 points of my process which are defined by the Buffer_ST1 and Buffer_ST2 servers. My problem is that I would like the Buffer_ST2 server based on a condition that would be every time an entity passes on Input @ Buffer_ST1, the Buffer_ST2 server releases only one processed entity and not all those inside the server as it happens now, I hope for being clear and thank you in advance. I put the model in the attachment Buffer varianti trazioni V2.spfx
  21. Hi, I want to generate one type of product with one interarrival time. I have one source and one model entity. However, this entity can have different lengths following probabilities. Depending on these properties, the processing times at the servers will be shorter or longer. I tried to assign a state to the entity before this entity exits the source so ModelEntity.Length becomes DataLength.prob.randomrow. where DataLength is a table with the different lengths and the probabilities associated with those Lengths. The only thing is that it is a property and not a state, but I do not know how to do it in another way. Afterwards, I have different processing times at the servers depending on the different characteristics of my entity. For example, server1 will have different processing times depending on the length. How can I reference to the good processing time say I have added a column to the table DataLength with the associated processingtimes according to the lengths? Finally, I would also like keep track of those different lengths generated and see what the model produced in the end. Thank you for your help, Emilie
  22. Hi All,

    In my model, I have a transfer node and the entity could go to either of the next 2 serves as in the picture.

    I have assigned product number(1,2,3...) to entities …., if product “1” moves from transfer node to S1 and the next product is also “1”, it should also move to S1 and if the product number changes its should change the server to S2. So the entire batch gets processed on one server.

    After processing from S1 and S2 the entity should flow in batch so that at S3 I have batch production

    Right now the entities go based on “By Link Weight” and randomly goes to the server which affects S1,S2,S3 servers setup time

    Any thoughts how can that be achieved, I do not want to setup a sequence table.

    SImioForumPicture.PNG

  23. 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.
  24. In the batch that was created, I want to search the member entity with the lowest value for state variable "NumberOfRollContainers" and change its value to: <<TotalREQ" - 0.9 * "CapacityTrip">>, where "TotalREQ" and "CapacityTrip" are state variables of the parent entity. I am struggling with how to use the search step in this situation, so help is appreciated. Thanks in advance!
  25. Hi, Is it possible to set the state variable of the parent entity in a batch equal to the sum of state variables of all member entities in the batch? Context of the case; a truck (parent) is loaded with x number of orders (members). These orders have a specific value for the state variable 'NumberOfRollContainers'. The truck has the state variable 'TotalRollContainers', which should equal the sum of the 'NumberOfRollContainers' in that batch. Kind regards, Christa
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