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Showing results for 'empty server'.
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Sorry Cam.Laboy, I missed this part of your message. Of course you had better to define servers instead of sinks. This time you should use Input@Server instead of Input@Sink in the sequences table. By this way, you can collect some other useful statistics, i.e., payment time, payment queue length etc., as well.
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Process Logic Design for Data-Generated Models
asneath replied to oalotaik's topic in SI General Discussions
Process logic is typically added to a model on an as needed basis. For instance you will notice that some of our Scheduling examples, like SchedulingDiscretePartProduction (via Support ribbon -> Examples) does not use any process logic. There are several ways to initiate process logic which you could read more about in the "Processes" help topic. For instance, all objects in the Standard Library have an Add-On Process Triggers property category that allows you to specify specific points in the simulation that you would like to execute a process (like on Entered for a Server). A quick tip: you may double click an Add-On Process Trigger property (like Entered for a Server) to create a new process corresponding to that trigger. There are also other ways to initiate processes: using Elements like Timer or Monitor, user-defined Events, or the Execute step. I would recommend investigating these further in the help documentation if you are interested in learning more. One of our newest example models (provided in the software) called InfectiousDiseaseSampleModel demonstrates using fairly comprehensive process logic along with a data-driven approach. Happy modeling! -
Hello, I don't think you attached a file to your post. I would recommend looking at the Output Tables help topic. Instead of using the Server's built-in State Assignments, you may need to use an Add-On process with an Add Row step followed by an Assign step to update the Output Table. Happy modeling! Adam
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Hi everybody! I have a problem at the moment that defines a state variable in an output table. In my example, I defined an integer state variable which tried to give a reference for the row in the output table. Then, I assign on server state assignments the time in process and tried to write it on the output table. I attach the file so it can be better understood. thanks for helping me!
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I have followed the simbit Servers Using Task Sequence with Data Tables Job Shop as it is close to what I want to do. I have a process to model where most of the work is done in 1 physical location. There are 2 problems I am running into: 1) Some tasks once completed should trigger another server to start processing (Ex. when task 4 completes it should trigger tasks c and d and server 2) 2) I have tasks 1, 2, 3 and 4 that can run in parallel. I also have tasks a, b, c and d that can run in parallel. However task 4 needs to complete before c and d can start, 1 has to complete before a can start, and 2 and 3 must complete before b can start. Any suggestions on how to handle these?
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I am trying to model a repair process. A major part of this process is the time to get the tools from their storage locations to the machine that needs repair. My thought was to have the tools be modeled as entities that a fork lift or worker has to go grab and bring back to the server. The problem is I need to wait for all those entities to be there before the server can start to process. Then I want to destroy the entities because they aren't actually being processed (only 1 entity would be processed as a representation). Does anyone have a suggestion on how this might be accomplished? Thanks.
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To keep things simple, let's just say I have two servers. At these two servers are 3 resources each: Server A has Resource 1, 2, and 3, and Server B has Resource 4, 5, and 6. I have a pre-determined list of Resources that needs to be selected. For example, the Entity would need to go to Server A to select Resource 2 and then Server B to select Resource 4 and then exit. I need help with the logic to help make this work. But then, once the order is finished, the resources to capture changes so the entity might have to go to Server B to get Resource 6 and then Server A to get Resource 1, then to the sink. In the big scheme of things, I'm going to have many Servers and each Server is going to have at least 4 Resources. I'm trying to figure out how to do this in the most efficient way whether it be through lists or built in properties. Thanks in advance!
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Hi all, I have a model with several servers, each with their own Changeover Matrix for cleaning between jobs. This is done by a Sequence Dependent Setup within the Servers Task Sequence steps. This is working fine when the Cleaning is either done 100% Automatic or 100% Manual with a Worker called as a Secondary resource. Some servers however require partial support from a Worker. For example a COMatrix of X mins needs to include 5 mins support from a Worker at the start and 10 mins support from a worker at the end of the Changeover period, with the middle X - 15 mins in the middle of the CO cleaning period (There are other more complex examples too where the operator will be required half way through the process too to empty the cleaning waste container). Is there a way of saving the COMatrix time, rather than running this delay, so that I can then build an add on process or add further task sequences to break the time into its Automated and Manual Components? Thanks in advance for any suggestions. J
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Change Server Capacity over time with WorkSchedule
JanainaF posted a topic in SI General Discussions
I have a model where I need to set a server had a maximum of 15 entities from 7 A.M to 10 A.M. I Use the WorkSchedule but I don't know how to limit the number of entities. Can someone help me? *This server it is parallel with other servers. -
I have a question regarding the use of a model state value at a specific timestep. I used a Tallystatistic and processes to calculate the output of a server for a specified interval, based on the Simbit Hourly Statistics. This works, however I dont want the value of the same timestep, but I want to use it two timesteps later. So for example if a server A output variable equals 10 at timestep t=1, I want to save this value as part of the input for server B for timestep t=3. So the value should be 'memorised' for two timesteps. I was wondering whether there are any suggestions on how to model this?
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Change processing time depending on previous server output
Wsimio replied to Wsimio's topic in SI General Discussions
Thank you, i used the server1.failure.active expression. However, i want to use the average server productivity and not an entity dependent time. How would you express the productivity of a server in a model state variable? -
Hi all, I am wondering of there is a way to create something comparable to a"wait" resourcestate. Maybe by defining or monitoring the "waiting time" of a server. Thankyou in advance!
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Change processing time depending on previous server output
Wsimio replied to Wsimio's topic in SI General Discussions
Thank you for your response! But im not sure: Is this also possible if the model is extended to 6 servers? So each server processing time is dependent upon the one in front? I thought I would need to make different state variables for every server (machine) For example:a machine in a production line needs to slow down with a delay if the machine upfront has reduced or zero speed because of failure. -
Hi all, I made a model of a production line (starting with 2 servers) and I am wondering whether it is possible to change the processing time of the second server based on the actual output of the first server. Theoretically seen the processing time of the server 2 = Speed of server 1 * E , in which E is a fixed formula (connected to server 2) to correct the speed. So if the first server performs according to expectation (without failures) for example 40 the processing speed of the second server is equal to 40*E with a delay of the conveyor time between server 1 and server 2. If the server has failure and thus have a lower output (for example, 30), I want to change the processing time of the second server accordingly to 30*E with a delay of the conveyor time between server 1 and server 2. Does anybody have an idea of how to do the following: How can you monitor the actual output of the first server at each timestep? Is it possible to fix the proposed formula and use it in an add-on process? How can you take the conveyor time delay into account (using a delay step in the add-on process?)? I am quite new to the software so I am not sure whether it is possible to model this in Simio. Thank you in advance!
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Waiting on the path if there is no seat in input buffer
Sea Jung replied to Sea Jung's topic in SI General Discussions
This model has property that can not be accessed by me .. Server -> Other processing option -> ResourceEfficiencyRule -> Minimum Is this property for Enterprise version? -
Off Shift Rule Secondary Resources
asneath replied to james.waller's topic in SI General Discussions
Double check that each Resource is hooked to the correct Work Schedule, and that you have the intended Day Pattern inputs for Mon - Sun in your Work Schedule(s). It sounds like you might need a separate (two total) Work Schedule for each group of 5 Resources. I would also recommend visually verifying that the Resources go OffShift (turn white) at the intended times. Other than that just make sure that the Off Shift Rule, in the Server's Secondary Resources, is also set to 'Suspend Processing'. Another way to check that the Server has suspended processing is to put some Dynamic Label Text on the Entity like 'ModelEntity.ID' so you can see exactly which Entity is in the Processing.Contents queue of the Server before and after the shift change. It should be the same one! Happy modeling! -
I am evaluating this software to determine if it would help with our current scheduling woes. The engineering group is where I am starting the modeling process. I have attached a document that lays out the problem and some of the constraints that exist. Would you be better off to model individual engineers as individual servers or as individual resources with one engineering server? Is my modeling need too complicated? I am quite new to this software but I can see the upside to the methodology employed by the software and the potential to model our complete manufacturing facility. Engineering Process Statement2.pdf
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Hello, I have selected Suspend Processing in the Off Shift Rule portion of my server modules but when I use a Status Label to indicate the Resource.Capacity.Utilized / Resource.Capacity, it appears as though the resources are not going off shift until after processing the entity in the server calling on the secondary resource. What else do I need to do? I'd like for the Resource to go off shift (and not finish the process) according to the Work Schedule assigned to it and then pick back up the processing of the entity when it gets back on shift. I've looked into several other posts but they seem to be outdated. Thanks!
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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?
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The Server Initial Capacity property sets the capacity of the processing station within the Server. Regardless of the Initial Capacity value, each Server Object is regarded as a single Resource in terms of the Results provided by the simulation. This is a long way of saying that, if you want to analyze each firm separately, you will need a separate Server for each one or a pool of Secondary Resources like you had mentioned. Happy modeling!
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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? -
Hello, I'm wondering if anyone has a good idea for how to view a resource's utilization according to the day of the week in the pivot grid of an experiment? Currently, my best idea is to just have a status plot in the facility window to illustrate this but I'd prefer to have an average utilization by day of resources in the pivot table. The scenario I'm working with is having "technician" resources that are being seized by server objects to do "maintenance" on the truck entities coming into the maintenance shop. I'd like to see which days of the week are the busiest so I could determine where to schedule new technicians. Any help is greatly appreciated. Thanks! Pit-To-Bay Off-Shift Rule Fixed.spfx -
Hi, I have used the SimBit "InterruptibleOperator" where i have set the process time on the servers to be a fixed one (200 sec at server 1 and 300 sec at server 2). I have further more changes the Interarrival time on source1 to be 1 day and the entities per arrival to 50. The Interarrival time on source2 to be 1 day and the entities per arrival to 100. (Look at the linked file) Then when i checked the process time on the server in results it was not 200 sec and 300 sec as had set it to in the server. I think the operator is the one to blame for this, but how can i get the right result in results? I have tryed to remove the operator and the process connected to it, and then i got the right process time. I however still need the operator, so need a solution to get the process time and keep the operator. InterruptibleOperator - process time - resultat1.spfx -
Prioritize certain entities and interrupt process
svend2000 posted a topic in SI General Discussions
Hi, I'm currently working on the attached model, and currently i have a lot of trouble on making the two operators prioritize the B2C entities. I hope that somebody can help me fix this issue. Just a brief rundown of the model: each day freight arrives at 8.00 and this triggers the sources for B2C and B2B to feed a number of entities, with a corrosponding distribution into the system. Upon the entities arrival to the two "AT-servers" the two operators should prioritize the completion of all B2C entities, before moving to ATB2B. If new entities arrives at the ATB2C server, and the operators is situated at ATB2B, they should interrupt that process and focus on ATB2C. The prioritizing and interruption is based on the simbit: InterruptibleOperator.spfx Best regards Kasper MySimio.spfx -
Two entities, where one always will be processed first
GFurtado replied to svend2000's topic in SI General Discussions
I set ModelEntity.Priority = X at Output@SourceX State Assignments property, but it could be assigned anywhere before the server.
