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  1. I am recreating the model 5.3 of the Simio and Simulation textbook. When I create the list and run the model, with selection expression in the output@placement node as below candidate.Node.AssociatedStationOverLoad, all entities goes only to finepinchfaststation. However, when I use Candidate.Node.AssociatedStationLoad it selects all desitnation loads. Is there any change to the Candidate.Node.AssociatedStationOverLoad? I displayed the values in the facility window and it is coming as -infinity. Model_05_02.spfx
  2. I want to create a list of materials from data table. I can refer to inventory replenishment policy from table by adding by adding "replenishment policy" property from data tables. But how do I define the default values of Re order point and Up to Level parameters for these auto-created materials? I cannot see such option even in the built in Material Table Scheme. Any help is really appreciated. Kind regards
  3. Hi all, I want to create a list of tasks from data table which I will use in the server objects tasks sequence. When I want to refer to all of the properties of material requirements to data tables, I am facing a restriction as follows: a) I can refer the material "Action Type" (Consume\Produce) property from server object to data table by adding an "MaterialActionType" enumeration property to data table. b) If referencing in a) was NOT done, for the selected action type (lets say produce was selected), I can refer the "production type" (Material/Bill of Materials) property by adding a "MaterialOptions" enumeration property to data table. However, when I do the task in a) an additional row appears in server object, now showing both consumption type and production type in properties. Then I am unable to set reference to data table as in b) any more. Is it possible to refer BOTH "Action Type" (Consume/Produce) and "Material Options" (Material/BOM) simulatenously? If yes how? Could you please guide? Kind regards, Tolgahan
  4. Hi, I am looking for an event which can be used in a Wait step in a process which is triggered by an entity finishing processing in a station. Also potentially an event which is triggered when an entity exits a station. Do I have to manually fire an event with an addon process from every station which I wish to do this?
  5. I am trying to simulate a model of a factory where 6 hours of planned maintenance occurs every Wednesday at the same time, from 8am to 2pm on the production line. There is a second almost duplicate line which can then be operated when the maintenance begins, it is attached to the 1st line after the source and the first server. The factory is 24/7 in production. When this occurs the 1st line should clear of all entities and should remain empty for the 6 hours. How is it possible to simulate this 6 hours of no production on the first line after the first server and when this happens the source should continue producing but follow another path to a second line after the first server. From this experiment i want to see how many entities can still be created over a period of time when the maintenance occurs by using the second line.
  6. In my model, I have a separator that will create 4 exact copies of the input entity. I would like to assign different values of states to each of these 4 copies. How can I do so? Thank you!
  7. I have one data table to create Order entities(based on SimBit - Entity by data table). Each order has properties such as type of Part and number of Parts. Each Order entity needs to reference a Part data table (based on SimBit - Leveled Arrivals) for that type of Part to create all the part entities for that order. Each Order type has an associated Part data table. I'm not sure how to establish the relationship between the order entity and the correct part data table. Any suggestions would be appreciated. Thank you.
  8. Has anyone had an issue of tokens mysteriously building up and not exiting the system? By using a search step in combinations with create steps what I think is happening is a build up of tokens somewhere without it exiting the system. Would appreciate any help in debugging. There should theoretically be only enough tokens to match the number of entities currently in the system but it seems when the search/create action is occurring it doesn't get rid of tokens. Attached is a file if you run should show the problem occurring around 2.5 hrs. simiohelpexceedinglimit.spfx
  9. Hello, I have a source that I need to let create 5 entities per arrival before 1 minute runtime and 1 entity per arrival after 1 minute, how do I do that? Thank you
  10. Thank you, Glen! That worked. Also, a while back ago I did create my own VS project and compiled - I don't recall setting Copy Local to false, so wouldn't surprise me if that's how my environment got in this state. Thanks again!
  11. Make sure SimioAPI.dll, SimioAPI.Extensions.dll and SimioAPI.Graphics.dll are not in the ...\Documents\SimioUserExtensions folder. If there are older version of these DLL in this folder, you will get this error message. It is best practice to not have these DLL in this folder. If there are not in this folder, Simio will find them in its executable folder. If you create your own Visual Studio project and compile into this folder, make sure you set the "Copy Local" == False.
  12. I think if you set the max to 30, if 14 are generated all 14 (or other <30 number) will enter the workers ride queue and will be transported. You could also keep the ride capacity at 1, model the 14 pallets as 1 entity (lets call this a shipment entity), have the worker move that 1 entity to the next location, and then use a separator to turn the shipment entity into some number of pallet entities. Attached is an example. example 9.23.22.spfx
  13. Hello, I'm working on a project where we want to build a scheduling model. But there is one think that I'm dealing with for a while now. I want to capture mid phase stock. For example if we have part A, which has 5 sequences to be produced. But at previous order we did not push all the parts through production, so now we have some stock on different operations. What I want to achieve is, that when my order come I firstly look at general stock of finished products (OK). If there is not enough stock I want to look at how many parts I have on the stock before last operation, if there is enough I don't want to create new entities but use this stock and produced new parts. If there is not enough parts before last operation we of course look at every previous sequences and if there are still not enough parts only then I want create new manufacturing order and with that new entities. If any of you guys deal with system like that before it will be really helpful. If you haven't but have some idea how to solve this problem, it will also be helpful because I've already tried a lot of options and now I'm stuck. Best regards!
  14. 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
  15. How can I schedule a randomly distributed death event for each entity, and pull them out of the system (or perhaps route to a "mortality" sink) if it occurs before they have already left? Somewhat similar to reneging, but I need mortality to be possible during a service, not only in queues. If an entity is removed from service, I also need the seized resources to be released. What I have tried so far: When an entity is created, I provide them with a state variable for TimeTillDeath, lets say exponential(2) hours. This is a real number, not a datetime. As they enter each queue, I set the reneg trigger as ModelEntity.TimeTillDeath subtract any elapsed time since creation, min 0. This works to model mortality while they are waiting for service, but not during a service. Any help is appreciated, KO
  16. Hi everyone, I am working on a project that has more than 2,000 different arrival distributions. The distributions are all exponential, but they all change over time. To illustrate: suppose I am modeling 30 companies around the world, each company with a group of suppliers (or clients), each supplier (or client) with a group of parts (or orders) that will be arriving in my company to be processed. Each one of these parts coming from each supplier to each company (I will call it a combination) has its own distribution that changes over time. [this is an analogy to my problem] If I had only 1 company with a few suppliers and a few parts, the natural solution would be to use Rate Tables. This would be good because I want to investigate the impact of different Rate Scale Factors (increase or decrease of arrivals) on my key performance indicators. However, as I mentioned, I have more than 2,000 different distributions. So, my main question is: does anyone have a suggestion about how to create these arrivals in an efficient manner? I am assuming creating one source and one table for each possible combination would not be efficient, as it may make the model super heavy. I have thought about two different solutions (which I am not sure if it is good and, even worse, I do not know how to implement yet). So, recommendations to any materials, SimBits or tutorials that might provide more information about my ideas are really appreciated. #1) One idea was using an object inside an object in Simio. This may reduce at least a few combinations?! However, I do not know how to model objects inside objects in Simio. #2) Letting Simio auto-create all my servers and auto-fill the information using tables. This means that I would create one source for each combination. Although this may not be computationally efficient, at least I would not have to drag and drop each one of them. But again, I am new to this auto-create object tool and I do not know how to implement it. So, I really appreciate: - any ideas on how to solve my problem in an efficient way - materials that may teach me how to solve my problem using my idea #1 or #2. Another issue is that RateTables (as far as I know) cannot be imported and binded. So, how can I input all my 2,000 columns of arrival rate data in Simio? Otherwise, my solution #2 is really bad. I have also discussed the idea of grouping the arrivals together and using TableRowReferencing and discrete distributions ("mix") to reduce the number of possible combinations. However, the team I am working with does not think this is a good idea, since each distribution change over time in a different way. So, combining them may not be very accurate. Thanks!
  17. 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
  18. Job Description Energetic and personable professional who applies operational research to best utilize workforce, data, technology, and other resources to achieve maximum productivity within budgetary constraints. Guides current practices and facilitates through more efficient and effective ways to achieve operational excellence. Experience in discrete event simulation, agent-based modeling, and predictive analytics is a plus Job Responsibility Develops metrics, creates dashboards, reports, and identifies areas of improvement across the organization using various analytical tools and techniques. Identifies current process gaps through the use of observations, data collection, data analysis, process ideologies and communication with management and frontline staff. Identifies issues, root causes, strategies for improvement, and development of implementation and sustainment plans. Supports project management, development of project timelines, and follow-up action items for process improvement initiatives. Develops the summary of findings, recommendations, and action plans to management. Applies principles, techniques and procedures to the design and implementation of technology and process solutions (i.e. Lean, Six Sigma, Kaizen). Supports development of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects. Work assignments are varied and require interpretation and independent decisions on the course of action. Decisions may be guided by precedent, previous experience, and known professional guidelines and compliance requirements. Often required to interpret policies, standards, requirements, and approaches to meet work objectives. Regularly exercises independent judgment on matters of significance within defined procedures to determine appropriate actions/approaches. Normally receives general instructions on routine work, and detailed instructions on new projects or assignments. Performs related duties as required. All responsibilities noted here are considered essential functions of the job under the Americans with Disabilities Act. Duties not mentioned here, but considered related are not essential functions. Job Qualification Bachelor’s Degree or equivalent combination of education and related experience as Continuous Improvement Engineer, Industrial Engineer, Operations Process improvement Engineer, Process Engineer, or Lean Six Sigma Black Belt. 1-3 years of technical experience, required. Technical Skill preferred: Experience in discrete event simulation (preferably Simio), Lean, Black Belt Six Sigma Certificate, Statistical Analysis, Graphical Analysis, Facilitation, and Presentation Skills, Operational Research, Programing (i.e., R or Python), Predictive Modeling, Agile Project Management. Here is the link to apply: https://jobs.northwell.edu/job-3/16580688/process-improvement-engineer-lake-success-ny/
  19. Heya, I am experiencing some difficulties, with something that I would like to model. In short I would like to model the following: One road going from A to B by using a source and a Sink. Only trucks (entities) will be on this road, and they will be able to notice which truck is the most nearby. The truck is looking for another nearby ruck to group up with, and will try to form a couple, "Truck Platooning". Until one of them decides to make a turn to a different destination (passes a node, and decides to move to a different sink). During this time the following truck will safe fuel and thus costs. At the moment I am quite stuck with the following. I would like to make use of the find step and vectors. But there are not that many examples around on how to properly use them. I would like to let the entities update their location.x every second in the vector. Meanwhile the entities will use the findstep to find the nearest entitiy, and select this entity to 'catch-up' with. How do I make a list of these entities, and keep updating their location?
  20. Hi SI We are currently doing a project on queueing systems at Uni, and our tool of analysis is Simio. This means that i am quite new at using SIMIO, but i will try to explain the problem the best i can. We are building a system of a recycling center, simulating queues in the different lanes. I attatched a screenshot. We need to set the condition that the entities need to use at least one of the lanes, ContainersLane1, ContainersLane2 or GardenWaste, meaning the entities cannot drive directly through the recycling center through the lanes, but i do not know how to do so. Would anyone be able to tell me how set this condition/create this process? Kind regards, Aksel, Aalborg University
  21. One machine in my model needs to realize three type of failure event during the simulation. The first type of failure will happen every random.expo(3) minutes and need an operator to adjust it, the second type of failure will happen after every 100 entities be processed and need the same operator to deal with, the third type of failure is random.exponential(3) days and need engineer to repair. All the three types are independent occurred. How can I model this condition? Any suggestion will be appreciated!
  22. About the job Position: Industrial Simulation Services, Simulation Developer Location: Kitchener, Ontario Experience: 3-5 Years of relevant work experience Division: OTTO Motors Area of Study: Industrial/ Mechanical/ Mechatronics/ Systems Engineering NOTE: Must be able to travel to the U.S at time of application. About Clearpath Robotics Inc. Clearpath Robotics Inc. develops the future of robotics technology through development and sale of industry-leading self-driving technology, products, and services to over 500 of the world’s most innovative brands. Proprietary hardware, software, and services are delivered through the company’s research and industrial divisions: Clearpath Robotics and OTTO™ Motors. Clearpath Robotics Inc. is an award-winning company with recent awards including Robotics Business Review Top 50 Robotics Company, Edison Award for Innovation, Business Insider Top 40 under 40, and Canada’s Top 100 Employers. About Clearpath Robotics Research Solutions Clearpath Robotics’ research solutions group is a global leader in unmanned vehicle robotics for research and development, and provides hardware, software, and services to enable self-driving vehicle development, deployment, and operation. Clearpath Robotics works with over 500 of the world’s most innovative brands in over 40 countries, serving markets that span mining, military, agriculture, aerospace, and academia. Visit Clearpath Robotics atwww.clearpathrobotics.com. About OTTO™ Motors OTTO™ Motors is making material handling in industrial settings safer, easier, and more efficient through development of hardware and software that automates movement of goods in busy factories and warehouses. The company’s industry-leading self driving technology provides automated and on-demand material handling in the most demanding industrial environments, spanning automotive, medical device, aerospace, logistics, and more. Customers trusting their mission-critical material handling needs to OTTO Motors include Fortune 100 brands GE, Toyota, and Caterpillar. For more information visitwww.ottomotors.com. About the Job Having 10’s of robots run around our offices is great, but having hundreds of robots running around inside our computers is even better. Rich simulation environments offer a wide range of benefits to many aspects of our business: fast research, development and validation, sharp marketing tools and strong customer experience / support. We're looking for a Simulation Developer to create and run simulations that will help us optimize our robot fleets and system solutions. As a part of the Industrial Simulation Services (ISS) team, you will act as a subject matter expert and lead modeling and simulation activities. The ISS team works closely with our Systems Engineering, Applications Engineering and Project Management team, to support overall solution design from initial concept all the way to full system design and deployment. You will be building material flow strategies (based on self-driving vehicles) for products already in our arsenal and ones that do not yet exist. Your goal is to develop accurate and robust simulations to evaluate design, lower risk, and enhance the elegance of our solutions to fuel our growth. Primary Responsibilities Creating discrete event simulations for real and hypothetical systems, estimating fleet sizes, identifying traffic bottlenecks, testing what-if scenarios to optimize performance of robot fleets Consulting with project leads, sales team members and customers to obtain understanding of the requirements and to collect the necessary inputs Advising on simulation based metrics to evaluate system risks and performance Analyzing results and making recommendations for facility and material flow design Presenting your simulation results to our team of engineers, our sales team, and to clients Validating models against real world data to maintain accuracy relative to product portfolio Growing and improving our simulation library and internal templates for functionality, accuracy, scalability and efficiency Drafting functional specifications, proposals and effort estimation Recommending product feature and improvement ideas to our Product and Engineering teams, that lead to greater system optimization in the real world Additional tasks may include: Interacting with our development team as necessary to assess impact of new feature or product Developing simulation models to assist Sales & Marketing in demonstrating Clearpath's products and capabilities Using your expertise to assist our engineering services group in developing the more complex system concepts About You You're excited about the role that robots will play in the future, and intrigued by the challenge of joining a young company in this high-growth market. You have skills and experience that you know can make a difference with the Clearpath team, whether we're looking for them or not. You are driven and view work as more than just a job. You are motivated by making an impact on your workplace and you thrive on challenging and rewarding problems. Most of all, you want to be on the right side during the coming robot revolution. The ideal candidate will have: Proven success using simulation solutions to evaluate feasibility of facility design or operational changes Experience with discrete event simulation tools like Simio, AutoMod, AnyLogic, FlexSim, Delmia, and understanding of its limitations Experience collaborating with cross-functional and external client teams to gather comprehensive data required for model development and/or analysis Fearless in questioning to ensure end users get the most value out of your work. You understand the importance of early goal alignment and scope definition Effectively communicate complex model functionality to the client or internal team for assurance of model results accuracy Customer-first mindset Avid self-learner Ability to work independently with minimal supervision and manage deadlines. Able to cope with sudden jarring changes in projects, priorities, and the local gravity field. Bonus Points for: Experience identifying traffic and material flow bottlenecks and mitigating risk Experience in manufacturing industry Understanding of different industry warehouses. You see block diagrams and flowcharts everywhere and speak the language. Experience with Object-Oriented programming Working knowledge of one or more of C#, Python, VB.NET Exposure to working with ROS, Gazebo Past participation in simulation challenges What’s in it for you: Flexible Hours, Health Benefits, Parental Leave, Vacation, Equity, Community Days (paid), Half-Day Birthdays, Passionate and Dedicated Teams Curious to know more about the culture at Clearpath & OTTO, check out: https://clearpathrobotics.com/blog/category/blog/culture/ Come join us if you feel like our values resonate with you, and if you are interested in being a part of making industrial workplaces safer and revolutionizing automation. At Clearpath, we are committed to building and supporting a culture of diversity, inclusion, and accessibility. We hire the best talent regardless of race, color, creed, national origin, ancestry, disability, marital status, age, veteran status, six, sixual orientation, gender identity, and expression. If you require special accommodation to complete any portion of the application or interview process, please contact 1-800-301-3863.
  23. This is my first post on Simio forums so please let me know if this is the incorrect place. I have Default (Parent) entities that must go through only one series of combiners for processing the members (ModelEntity 1,2,3) that get attached. At the end of the series, a separator removes all members and the parent entity circles back to the start to acquire new members. No parent entity can start processing in the combiner series while another entity is going through that combiner series. I cannot figure out how to stop entities from entering the first combiner in a series while there is another entity processing in the same series. Ideally I would like to store these parent entities at a location until a series of combiners are free for processing. CombinersInSeries.spfx
  24. I'm trying to model airport ground operations using workers for the different processes, servers for the gates, entities for arriving airplanes and TransferNodes to control the flow of entities and workers. My research is focused on the control of these ground processes, but I can't get my process logic correct.. I attached a simple model to help answering the question. I want the workers to move to the right server before the entity arrives there and can immediately start processing the entities. One method is to use a global queue from which workers decide which entity to process next based on some criteria and dynamic rule selection. In the attached model I use two entities which go to Gate1 and Gate2. Gate 1 needs workers move to the node before it can start processing, Gate 2 does not. Using an add-on process, I move the worker to the gate before it is requested and wait for the entity to arrive. But for some reason it does not start processing immediately when the entity arrives and I can't figure out how to model this correctly.. It's the first time I'm using Simio, so I some help would be appreciated on how to set up the logic for my processes.. I'm kinda stuck now on how to get some basics thing in my model right or if I'm using the right processes steps.. Thanks in advance! TestModelWorkers.spfx
  25. Hi, I have a PersonEntity and I would like have different behaviour to it depending on whether it's a woman or a man (and obviously the symbols have to be correct). That's why I figured that 2 object instances would be a good approach, 1 male and 1 female. But now I wonder what my approach should be in the rest of the modelling. For example if I want to randomly spawn females and males from a source, how do I express this in the entity type, as I have to choose there between male and female already. How do I refer in expressions to the object instance? f.e. IF(male); do command So I have 3 questions: 1) is my strategy good? 2) how do I dynamically change the entity type in sources? 3) how do I use object instances (or object types) in expressions like if-statements? Thank you so much in advance, Jarek Result
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