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Showing results for 'batch size from list'.
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Assigning workers to specific servers by work day
dsturrock replied to esimiouser's topic in SI General Discussions
If you haven't already done so, I'd start by reviewing the SimBit ResourceSelectionConcepts. It contains several models that explain different types of resource selection. In particular, I'd suggest a combination of the following approaches: Create a table for each Worker (and/or each Server) where columns in the table represent the constraint or exclusions. For example, you might have a server table with columns for each day, and each column might contain a list of workers who can potentially be used on that day. Use resource lists to select from. possibly with exclusion conditions (maybe referring back to a table) of which resources cannot be used on that server and that day. -
Hello, I need check state variable of object/models in a list. Is there any method to use like a "for loop" Thank you!
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Thank you for the quick and detailed response! I see the error I was making with work schedule and have tested it on one server, it seems to work as intended. Since each of my servers have a different capacity, would I need to create a unique work week and unique day type for them all? Or is there a quicker work around? The manual inputs for the date time are a great work around, I'm only modeling for a few years so I don't mind inputting a few dates. What I mean by there being no buffers is that no server can have a queue. I used a list for selecting the destination on the output node of each source (total of 8 ) where it's a hierarchy. It can go to a select number of servers and if all of them are full it goes to a dummy server of infinite capacity that exits the items to an overflow sink. -
You want to make the servers have a Capacity Type of Schedule and follow the default Standard Week. If you don't want to give them a lunch break, just change the definition of the Standard Day. Leave the default Off Shift Rule of Suspend Processing. The easiest approach for arrivals is to have a Source with an Interarrival time of 4.33 weeks (or 4 weeks) and an integer random distribution for the Entities Per Arrival. Doing a "first Monday" is possible, but a bit complicated because Simio time does not have the concept of Month because months are of varying size. You could probably specify the initial Time Offset to be early in a month, then maybe make the interarrival time be something like DateTime.DaysInMonth(DateTime.Month(Timenow),DateTime.Year(TimeNow)) which would make the next arrival be exactly one month later (same day of the month). When you say you have no buffers, what do you mean? If an entity arrives when all servers are busy, should it be balked (possibly disposed) or should it wait somewhere like on the server input node, on a path or in the Source output node? If the above arrival approach isn't exact enough, you can put exact arrivals in a data table. The arrival time could be specified at any exact datetime you desire and still have the Entities Per Arrival be a distribution.
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Hi, there is a simple approach you can use. Use Connectors between the queue server and the desks. At Buffer Logic of the Desks, change the Input Buffer Capacity to 0. Create a List with the Input nodes of the seven Desks. On the Output of the queue server change Entity Destination Type to Select From List and the goal to Smallest Value. Keep the default expression. It should work fine. -
Hello everyone, I am creating a new "customize" model and try to enable addon process, but I cannot find this option in the following list.
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You are not able to use an index to return an item in a List. I would suggest using a Table instead of a List
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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
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Hi All I would like help to build a custom (subclassed) node that, OnInitialized, would populate a lists of inbound and outbound path in each node. Ideally, it would also determine and store each path's length or travel time, and whether the path is available or not (this would probably require a subclassed path as well). I want this done dynamically (automatically) because I will likely have hundreds of nodes in my model and populating (and re-populating) these lists would be very time consuming and not very conducive to an efficient design process where paths and nodes would be added/subtracted throughout the design process. First, I guess, actually...is dynamic list population possible? Any thoughts? Thanks
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Hello everybody, I'm trying to make this work but I cant Type/Conteiner BinBig BinMed BinSmall Product1 1 1 - Product2 - 1 1 Product3 1 - 1 Product4 1 1 1 I want to make a node where these entities (Products and Bins) are convined in one batch, I try to use a process based in decitions and search.. the file is attached if you wanna take a look on it.. (the product have to be the parent) OptimoContenedores2.spfx
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Hi, You won't need batch logics of the definition. Just the combiner is enough. I made a simplified version of your model. Producto1 requires 1 med and 1 big, while Producto 2 requires 1 small and 1 big. Pay attention to the process that I created at TransferNode1, you'll need to adjust it for the Producto3 and 4. Watch the Combiner Object aswell. Hope it helps. ExampleSimplified.spfx
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Hello Vinicius, thank you for you help but I still having problems with the model. I can understand the logic behind of the SimBit "CombineMultipleEntityTypeOntoPallets" but I have some doubts. I change the model adding a combiner, I creted a intergrer model entity state to identify the quantity of containers, and I have a real state to identify the container but I dont know how change the batch logic of the container to each product. In the definitios tab you can see the batch logics. I hope you can help me Best regards. OptimoContenedores3.spfx
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Hello, I am working on a Demo Model and I would like to use the Console feature. The Console has a lot of "pros" because you can decide whether to display/hide KPIs, place buttons...However, it has a couple of "cons" that make its usage less friendly: Console Size cannot be pre-defined. Every time that the Open Console is clicked, the console will be opened in a different place and with a small size, which forces to manually move it and resize it so that everything can be seen more clearly. Gridlines cannot be hidden. I have tried to disable them in the section of view - gridlines, but it has not been possible. Any of you know if these two features actually exist and it's me that I do not know them? Attached there are a couple of screenshots of what I mention and the model itself (DemoModel should be run and right click open console). ConsoleIssue.spfx
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In addition - Based on error message, the destination selection step seems to be trying to use a reference table, (used at source output node), despite the particular node list being specified in the routing logic for the node in question, (i.e. Output@QC2 - see below). Thanks again.
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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
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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
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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!
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Hi I've got a model where the situation is like this: 1. 3 Worker: W1 W2 W3 2. 3 Server: S1 S2 S3 On Monday (work schedule), W1 will work in S1 in the morning and work in S2 in the afternoon. W2 will work on S2 in the morning and S1 in the afternoon. But on Tuesday, W1 will work in S2 in the morning and S3 in the afternoon. W2 will work in S3 in the morning and S2 in the afternoon. The server properties in the secondary resource are "select from the node list." But since the node list for S1 and S2 contain both W1 and W2, and they both have the same hour of working (4+4), when the S1 server seized the resource on Tuesday morning, instead of W1, W2 got allocated instead( W2 should be in S3). I have tried: 1. Using server selection goal to " smallest distance," but it didn't work since the worker will keep swapping the room every day 2. Giving each worker a new initial value and setting the selection goal to "smallest value," but they still have the issue. 3. Try setting idle action for the worker to stay at the node, but sometimes the worker will go to the wrong destination from the first entity, hence no one working in the other room. (2 worker stay together) Is there any method to realize this idea? Thanks in advance
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I used to have a similar problem. My advice, avoid the pallet entering the combiner untill you have defined de @new@ batch size, elseway the batchsize wont be updated. In my case I put a scan step in a prevoious node, retaining the pallet ouside the combiner until I've re-defined the batchsize. Let me know if that works Rds
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ConveyorLibrary.spfx Simple conveyor library with a merge controller, slug conveyor, Slug Node and a Photo Eye. Library has two example models. A MergeControllerModel and a PE_ExampleModel. Merge controller,Slug Conveyor and Slug Node are used together to develop a slug merge. ConveyorLibrary.spfx On the slug conveyor you can specify the size of the slug. Slug node controls when the next slug is to be released. As soon as last entity in slug crosses the slug node it will send a signal to merge controller to release the next slug. Ending node of the slug conveyor has to be a slug node. Conveyors before and after slug conveyor are regular conveyors. These objects have not be extensively tested. These can be used to develop other conveyor related objects.
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New to Simio and learning as I go. The attached model includes a CombinerNode1 that batches entities in groups of 2 & 5 (random.discrete). I would like Server1 to use different processing times for the different batch sizes. For example, a batch of 2 entities should be processed in 5 seconds; Batches of 5 entities in 7 seconds, etc.. Eventually I will create batches of up to 6 entities. I have tried using Server1.Processing.Contents for Processing Time, but seems to return the value of 1 all times. Any help is appreciated! Thanks! Processing time based on BatchSize.spfx
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Hi , I have a system with a combiner, that combines different variations of batches. On exiting the combiner the crane picks the combined entity up and drops up at a server. Each of the different batches will have a different load and unload time. Is there a way to do this? Basically, does batch contain product ‘A’ if so crane time is ‘X Mins’ Does batch contain product ‘B’ if so crane time is ‘Y Mins’ Thanks for any help!
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Design of Experiments with Import Table
Grant S replied to Grant S's topic in SI General Discussions
I think this could be helpful as well - do you have an example of this working? Because I thought the experiment tab it required the user to grab directly from a predefined list in the simulation? Like it is not text accesible? -
You may need to create a addon which can automate the copy your data into experimentation grid. Easiest way is to select your excel data and Ctrl-C, and select the experimentation grid (same area size) ,and Ctrl-V.
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Hi, We have a model where we have multiple entity states. This creates interface challenges in defining and populating these states or changing many of them at a time. My question is, can the UI be bypassed in some way using some kind of batch operations? For example suppose I want to assign 150 entity states using string construction and naming conventions easily set up in a spreadsheet. Is there a way to define all those states and import them from a file rather than hand editing each one in the Definitions UI? Another example is I want to set large numbers of these states at appropriate points in processing. Is there any way to do so by just importing name value pairs from a file rather than hand editing each one and copy pasting from a spreadsheet built up accordingly. Thanks Very Much, Jim
