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Just curious if there's an easier way to go about doing this... Long story short if I am representing multiple physical positions within capacity of a server and I create my own Gantt outside Simio, it's important for me to know WHICH resource (in this case which one of the servers) is utilized by each entity. I was trying to utilize Entity.Location.Parent.Server.Processing.Contents.IndexOfItem( Entity ) and assigning it to a state on the entity and then ultimately writing to an output table. However, this doesn't seem to be working accurately. It may be a timing issue on when this step is called, but is there a default function I'm just not aware of that could be of assistance?

Hi, The model describes a pharmacy, and we devide the entities in different types when created by a process. The enties are all placed in the Input@Server but will not enter the server and be processed. Can someone help us figure out what are we doing wrong? Model-2.spfx

Hello, I am simulating a restaurant queue with two servers. The queue is lineal and the entity order is FIFO. The 85% of the entities goes to Server 1 and 15% to Server 2. But I need that all the entities do the same path. So, those entities that have to go to Server 2, wait till Server 1 (capacity==2) is empty, and then go to Server 2 (capacity==2) without processing in S1, and those entities that go to Server 1, then, wait till Server 2 is empty, to move on without process in Server 2. The real example is a lineal queue where you have to choose between two foods, but independently which one you choose, you do the same line, taking the food in the server you choose and waiting for the people that is in the other server to finish in order to move on and pay. How can I do it? Thank you so much.

I have entity1 and entity2 entering a server. I want entity1 to have priority over entity2 when in the input buffer waiting to be processed no matter how many entities are already in the input buffer. I'm using connectors leading the entities into the server input node. Any suggestions?

Hi, It is possible to add a tear-down time in a server? I have a server with a capacity over 1, so I would like to add a tear-down time to simulate the cleaning of a bed in a hospital after it was used. Thanks!

Hi, I am new to Simio. I was trying to add a routing decision in my model based on average time waiting at a server. But this function only shows up in the status label but not when I try to use it in the Processes as shown in the images. An entity reaching a node should choose the route to a server which has minimum average time waiting. What I am trying to achieve is to create a dynamic routing so that the average Time in System of the entity will be minimized. I don't know whether this is the right method or if we need to work with API or functions to achieve this. Any help would be much appreciated. Thank you in advance.

Hi all, I met some questions in building the model. It seems a very general quesiton but I didn't find any solution from internet... I'm building a general workflow model. I want to decide the quantity of a server to optimize the workflow. I want to use experiments or optquest to get the 'best' number for each server. If I set the capacity type as Fixed, then I can set the initial capacity as ''referenced property'', then I can use this as control in experiments/optquest. However, I have a work schedule for each server now which means I couldn't set the capacity type as Fixed. And then I couldn't set capacity as ''referenced property''. I don't know how to control this capacity in my experiments/optquest. I know I can change the 'value'(which means the capacity) in workschedule table. But I can not change this number flexible in experiments... Or I don't know how to set this value as ''referenced property'' . Is there anyone who could help me with this? Thanks a lot!

Hi All, It's been a while since I have last used Simio and I have an issue that I think should be simple. I have two entities running on a production line, one gets processed by a server and the second entity type moves through the same server almost like a conveyor with no processing. I can work around this by adding another conveyor around the server, but in real life the product does flow through this server and eats at it's capacity. Is there anyway to set up different processing times for multiple entity types on a server? Thanks, Brendan

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.

Hello, I am modeling a store with a few workers and 3 cash desk. Two of them are always open. If the Queue in front of the two cash desk gets to long a 3rd worker is opening the 3rd cash desk. The Problem is: I dont know how to tell the Entities to only chose the 3rd cash desk if it is in use/open. Thanks in advance

Is there a way to check if a server/workstation etc. is operational, failure or in setup? If so what is the syntax?

Hi Team, Good morning, hope everyone is doing ok. Let me provide a bit of background. I want to simulate a welding process that have 2 identical lines in parallel. The source is a cart that have the materials for both lines (metals parts) one line create a part called "Arm" and the other line create the "Boom" we have 7 type of products each have a arm and a boom that is why I have a serve to simulate the creation of the Cart that deliver the material. I have created the routing tables for each line and the Part types and mix ratio. First issue. I crated both Identical lines, since the beginning only the top line the one call "ARM is working. even when no resources were in place. So I wanted to test the boom line but I have it been able. it gave me an error about the setup of the Boom Tacking set up time. As you can see there is a connector from the source to the boomTacking, (on Purpose) I set the Output@source1 - Entity Destination type to Continue then you will be able to see the error message. If I set it to "by sequence" I don't understand why the process start working on the Arm line even when there is not connection.. I wanted to try, because at the end I need to make the line to run with the resource were I have only 6 ppl. 2 tackers dedicated for tacking 1 and boom tacking, 2 welders that will be taking care of the welding process on station Finish1-1, Finish 2_1, Boomfinish1 and BoomFinish2 (on the table the welding time is set as the process time), 2 grinders that will be taking care of 4 weld robots setup time (weldR1_1,WeldR2_1,BoomWeldR1 and BoomWeldR2), and the grinding task on the 4 finishing stations (on the table the grinding time is set as the teardown time) But currently i'm stuck on why the Boom line is not able to run and gave the error on the setup time when both routing table for Arm and Boom are identical. Any help will be very appreciate it. Thanks in advanced, Regards, Htatton. Arm-boom-draft-R1.spfx

Hi, I made a simple warehouse-retailer model with a source(warehouse), two servers(retailers), and a sink, where the entities(products) are carried from the source to the servers using a single vehicle. The current capacities(demand value at the retailer) of the servers changes after a specific time interval(12-hours and simulation run time of100 days). The Input and Output buffer capacities of both the servers are set to zero. The vehicle leaving the source (Home node) returns back only after serving the respective current capacities of the servers one after the other. As each entity enters the server, its capacity is reduced by 1 unit ultimately reaching zero-current capacity when the full capacity is served. The problem I encounter is that sometimes after my vehicle leaves the source, the current capacity value of the server changes and the new value might be smaller than the previous current capacity value. So my vehicle stays at the input node of the server with the extra entities carried until a new current capacity value is assigned, instead of moving to the next server with whatever entities are left in the vehicle. I don't intend to change the vehicle speed or time interval for capacity changes to rectify this issue. For example, the current capacity values of the servers at time period 1 are Server 1 = 10 & Server 2 = 12. So the vehicle carries 10+12=22 entities from the source to the server 1. Now while the vehicle is moving towards Server 1, if the current capacity changes to Server 1 = 8 & Server 2 = 12, the vehicle stays at server 1 after serving the 8 units and the remaining 14 units stays within the vehicle instead of moving to the next server to serve its capacity. Screenshot of the model is attached. Could anyone help me with this issue? I would really appreciate your support as I have been trying to fix this issue for a while.

Hello everyone, I have been trying to do a Tandeem server in Simio Design 10, however the tutorial found online are from previous version, and I have not been able to find anything with the name of external or internal interface, or is there any new tutorial i can use to follow up. Regards, Angel

Hello, I'm trying to model a paint flow line where I have two servers in one line(series and not parallel). If one entity gets painted in server 1, then I want that entity to just pass server two without getting processed. If the entity does not gets painted in server one than it can get processed in Server 2. I'm not sure how I should put this logic in Simio. Any help would be appreciated, thank you.

Hi, I’m using a Process type: Task sequence in my model at Server 1. I’d like to interrupt the server each 12 hours for 4 hours and resume the entity being processed later. I’ve used a Timer and an Interrupt step which work perfectly only when the Process type is Specific time. Therefore, I tried with a token to obtain the Interruption at the server. I made a process (InterruptServer) doing so but I feel like I’m missing some understanding here. I’ve received an error message as you can see in the small model. Anyone knows how to solve this error? Thank’s Flora InterruptSeverAndEntity-ProcessTypeTaskSequence.spfx

Hello I would like an help doing the next thing, I already try diverse solution but nothing: I would like a add-on process in a server evaluation seize request that search in the queue for example minimization of processing time, and do another search for the maximizatioj between time now and entry time in this queue, and if the second is greater than the server must produce this one, else produce the first one. The search step, and the decide I already achieve, I confirm that with "model trace", but I can't find any solution to allocate the entity found in the respective server. A little help?

Hello all and thanks for letting me be a part of Simio Insiders I am closing in on having done my first source, server, sink simulation. It is done as a part of a University study and is due next week. Feel free to download my attempt and have a look at it. The process I want to simulate is as follows: 1. Chef recieves an order of 1-6 beef patties 2. The chef puts the patties in a grill, that has capacity of 12 patties, and a base cooking time/process time of 1 minute total (that increases with order size) 2a. If more orders come in, while the grill is preparing an existing order, they have to be put in queue, as the grill should not be interrupted. When the grill/server is free again, it will take all - or up to 12 - from the queue, depending on how many orders are in queue 3. The patties go to the sink I am using a Time Varying Arrival Rate table from real life data, on the course of 2.5 hours. The trouble I am having is as follows, and please, feel free to only answer some of them, if you don't have answers for all: _____________________________ a) Order size We want to have orders vary from 1 to 6 patties, per order, in a way that resembles this distribution: 1 (min order size) patty ; was ordered 2 times 2 patties ; was ordered 18 times 3 patties ; 9 ... 4 ; 7 5 ; 3 6 (max order size) ; 1 I have not been able to imitate this behavior. Right now, I use Entities per Arrival to be Random.Possion(2), as this looks a bit like this distribution above, but the flaw with Poisson is (I believe), is that an order-size of 0 patties is a possibility, which doesn't make sense. I have also been playing around with a lookup table, without a real clue on if that's the right thing to do. What should I do to resemble this? _____________________________ b) Server (grill) behavior The problem right now is, that the grill (server) can keep taking in patties, even if it's already processing. That doesn't make sense, if you think about it, since you can't put patties into a closed grill. I want it to start preparing an order, as soon as it gets it, and just let the queue of patties build up until the grill is free again. Then, take up to 12 patties into the grill. _____________________________ c) Process times For the grill, I want the process times to follow the amount of patties in the grill. The grill takes 60 seconds to prepare a patty, and we assume each patty takes 2 seconds to load. Therefore, we choose to simplify that: 1 patty takes 62 seconds to make 2 patties take 64 seconds 3 ; 66 sec 4 ; 68 sec 5 ; 70 sec 6 ; 72 sec 7 ; 74 sec 8 ; 76 sec 9 ; 78 sec 10 ; 80 sec 11 ; 82 sec 12 (max grill capacity) patties ; 84 sec Which is basically y = 2x + 60 In the simulation I uploaded, each patty, no matter the order size, just takes 60 seconds, which is incorrect. How do I get the grill to behave like this? _____________________________ d) Batching After getting the server behavior to work, I want to work with the utilization of the grill. My idea is, that if the server (grill) is told NOT to start preparing patties right at the moment, it receives the order, e.g. if the quantity is small, but instead waits a certain amount of seconds, to see if more orders should come in, maybe the total wait can become less. There shouldn't grow any large queues with the current arrival rates, but if we double it, it might become relevant, so customers shouldn't wait for too long. Another option would be, that it waits till a certain amount of patties are in queue, such as a minimum of 6. _____________________________ Thanks again, and I sure hope you will take a look at this! You are more than welcome to edit the file, but it is also fine, if you just type in here. Best regards, Johan Grill.spfx

MultiFailureServer.spfx [/img] in response to the above thread: http://www.simio.com/forums/viewtopic.php?f=1&p=9187#p9187

Hello, I'm modeling an orange factory. One thing that I'm trying to solve is the modeling of the reception pools (of oranges). 1) Arrive trucks. 2) The truck is weight. Every truck have a random value of kilograms of oranges. (integer) 3) The truck dispose the oranges in a workstation. (workstation = reception pool). This is model with a Separator. 3.1) There are 3 workstation. 3.2) Every workstation has diferent Input Buffers. 3.3) The entity once entered in MemberOut@Separator1, it triggers a decide process. 3.3.1) This decide is to choose the workstation depending of the Quantity of Oranges versus the Input Buffer. Now I need to Wait until the Input Buffer is Empty, but I'm having problems with that, because the entities don't release from this server. If there are doubts about the model or anything else, I will answer as fast as possible. test1.spfx

Dear all, I have searched for quite a while in the public part of this forum, but I could not find the solution of my problem even though there were some similar issues. I have four servers and a worker who is required as secondary resource for each of them. The worker switches and is doing fine so far. However, for my optimization problem, I need to simulate the amount of workers that are necessary to ensure smooth operations. Therefore, I would like to change the capacity of each server to 2 for 2 workers or to 3 to simulate 3 workers, etc. Sadly, the capacity of the server is not changing in the simulation even though the data are entered. Is there a solution to increase the capacity of servers with a worker as secondary resource so that always several entities are processed when the simulated worker arrives? Thank you very much for your support. Greetings from Hamburg, Armin

I have a question regarding the unloading time. I want my vehicle to have a different unloading time for every server it visits, the entities it carries do not differ from each other. I looked at adding expressions but that's easier for the entitity specifically, not so much the server. Is there an (easy) solution to this problem?

Is it possible to use local Simio software to read external Excel file from other server? Thanks

Hi guys I am new user of SIMIO software, and I am facing some difficulties. Could anyone help me please? I have a server receiving entities from a source. By default, server has 10 types of symbols (starved 0, processing 1… Etc.) . My question: Is it possible to keep the server with the symbol of processing (which is usually green box) after finishing the process ?? Thank you

Hi all, I'm trying to do an information network model, and I need to have hundreds of thousands of "nodes" in this model, each node would need a source, server, and maybe a sink. And the "nodes" need to be connected to each other as well. Is it possible do create such "node" automatically instead of manually creating them? And would the runtime efficiency be okay? or should I switch to other simulation software/language? Any suggestions would be appreciated. Thanks!