jholtman
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jholtman
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I have built a logging component that I use in my models. I can call it from anywhere VL can be used. It records the time of the call and upto 8 parameters that I can pass in. It also records the workcenter it was called from and the ID on the wo…
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If you are always going to split the workitem into a constant number of items, then you assign a "unique" id to the workitem when it is created and then each workitem split from it will have the same ID. At a collection queue, you just ha…
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Why don't you use "travel time" in the link between the activities? You can also use a workcenter to delay for a time instead of using the minimum wait time in a queue.
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Use a spreadsheet to keep the values.
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There are also changes you might have to make to the "display" settings. I had the same problem and support directed me to the changes. I will see if I can find them and send them.
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Use an spreadsheet to hold the values and then you can just use the cell index to access and change it. Can you give a better description of "what you are trying to do" as opposed to "how you are doing it".
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Try using a workcenter to hold the items until a review is required. What do you do in the current model when the shelf life is expired? Does it just move to another queue now waiting for work? Can you provide a description of what you model look…
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create a distribution which will have a name and then that name in your assignment
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send me your model so I can see how it is created.
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Setup the routing to 20% to the first queue and then 80% to a workcenter with an operation time of zero that will route out to the queue with the shortest length.
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You can assign a resource at one workcenter and then release at another; I think this is the option that you want.
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It depends if the ships have different arrival rates. If they are all arriving at one per week, then you could setup a single entry point with a rate of 3 per week to obtain the same distribution of arrivals. If they have different rates, then hav…
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You can model the beds a resources that are assigned to a patient at some point in the work flow and then released later. This would be important if the patient has to go through several activities while they are in hospital and you need to keep th…
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It is unclear what you want. Do you want to change the label after it leaves Activity 1? Do you want to change the priority of the items as they might be waiting in a queue for Activity 2 so that they are processed in a specific order? Do you wan…
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There are probably several ways of doing it. If there are certain places in your VL code that the global value is being changed, you can create a subroutine that you can past the value (and name) of the object and this can be recorded in a spreadsh…
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Here is what I would do. I would setup one workcenter for the equipment hire that has a replication of 10. I would link this to a review workcenter that also has a replication of 10. I would make these two workcenters a group and limit the number…
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You need to post your code on which this is happening. Does it only happen during the simulation? Can you put some debugging code to see what is happening? You can to this by accumulating a trace in a spreadsheet to keep track of what beds you ar…
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If your operation time is based on a label, and the distribution is FIXED, then the following code captures the information in the After Selecting logic: <CODE>VL SECTION: Activity 1 Route In After Logic SET finish = optime+Simulation Tim…
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It sounds like you want to have 4 resources (assuming that you have 4 booths) and these are allocated to a patient that is waiting. Since there may be some other activities/delays, you can do this in a workcenter, or assign a travel time to the wor…
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What do you mean by "wait"? Are they supposed to be delayed that amount of time, or if they wait that long (expire) that they go somewhere else. You can set the "shelf life" in a queue to have a workitem wait upto that amount of…
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There is a "SAMPLE" function that let's you pass in a string for the type of distribution you want and then you get back a value from it. For example if you needed a NORMAL distribution with a mean of 10 and SD of 2, you would specify in …
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One way to do it is to define a resource with 0 available. With VL when you want to stop a workcenter, use the "Set Resources Available" command to assign this resource to the workcenter. You would first remove the original resource with…
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More information would be required. For example how many workitems do you have in the model at the failure point? How many objects do you have in the simulation? Are you collecting all the data on all the objects? How you monitored how much memo…
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You can schedule a subroutine to run at any frequency you want. Let's assume the following code is what you want to run every 5 minutes: <CODE>VL SECTION: Visual Logic Section 2 'Do whatever processing you want to do 'The last command in th…
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You mentioned that you ran this for a "month", but you never defined how many hours there were in a day, since you can specify this in the simulation. So let me work backwards to see what I can determine. You said the workcenter was ca…
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It is probably more effective to have the delay within a workcenter where you have specified in a label, or selecting from a distribution, the operation time. I think I remember hearing that using the minimum wait time in a queue adds overhead to t…
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Simply model it with two different work entry points setup for the appropriate arrival rates. The two work entry point would probably input workitems to the same queue from which the work is routed appropriately.
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Here is some VL code that will initialize a probability profile from a csv file that contains 72 rows of data; here are the first couple of rows: <CODE>1,0.608415207,1.6314570292,0.449858681,1.206289883,0.182464031,0.4892747944,0.960546225,2.5…
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you can use VL code in the on complete logic to determine the time of day and set the routing out.
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You can keep track of how much time each workitem spends in a workcenter and accumulate this in a spread sheet that is keyed off the value of the Index attribute of the workcenter. You should also have this workcenter operation time be driven by a …