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npieters

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  1. npieters

    Search queue and pickup problem

    Dear all, I have this problem: When an transporter is empty, he first has to search if there is an entity somewhere waiting to be picked up with the state: "Scan2=true". I tried to model this with the following process: [attachment=1124:name] - First decide if the vehicle is empty? - Search if there is an entity with this state waiting in his own VisitRequestQueue (search in Vehicle.visitrequestqueue for the match condition Candidate.ModelEntity.Scan2 == True) - Search is if there is an entity waiting in the rest of the model (search in Global.VisitRequestQueue for the match condition Candidate.ModelEntity.Scan2 == True) - If he found them, he has to pick them up, otherwise he has to continue with his normal routine. But i get the following error: Could somebody help me out? I also included the model. [attachment=1123:name]
  2. Dear all, I have the following problem: One entity has to go through the server, the other one doesn't. But the entities need to be delivered at the same time at the sink. --> The travel time of "Timepath 1" needs to be the same as the server processing time. The vehicle cannot park/stand still at output@server1, so the travel time of "Timepath 1" needs to be exactly the same as the corresponding server processing time. The model is included. Thanks a lot!
  3. npieters

    Change a state of an entity while on transporter

    [i]Dsturrock[/i], i made a new topic in the simio insiders forum. Could you post a screenshot over there? Because i don't understand where to fill in this expression, it doesn't work in an "Assign step".
  4. Hello, Is it possible to change the state of just the entities while they are on a transporter? Because now i get an error when I put an add-on process to change the state of the entities going throug the node because simio tries to change the state of the transporter too. Thanks for the help, would really appreciate it!
  5. npieters

    Change a state of an entity while on transporter

    Hello, Is it possible to change the state of just the entities while they are on a transporter? Because now i get an error when I put an add-on process to change the state of the entities going throug the node because simio tries to change the state of the transporter too. Thanks for the help, would really appreciate it!
  6. Hello, In my model, all the entities ride on transporters. At a server, the entitie goes through the server and the transporter has to wait at the server until the entity is done, and then pick up the entity and bring the entity to the next location I tried to model this by selecting "Keep reserved if" true, but this is not possible for transporters with a capacity greater then one (the explanation from the simio help guide is included as an attachment). My transporters have a capacity of 5. Is there another way to model this? Thanks!
  7. What i did for now is the following: At creation the destination node is given to the entity, which is the "end destination". After creation, is decided (5% chance) if the entity has to go to the server. If true, the destination node of the entity is then set to the server. So after the entity went through the server, the destination node of the entity has to be set back to the "end destination", which was given at the beginning. The problem here is; the entities are still on a vehicle. So Simio gives an error when it tries to adjust the destination node. So the next question is; How to change the destination of entities when they are travelling on a vehicle?
  8. This problem is part of a bigger model with all a lot of paths, it's not possible to make the different paths for each entity.
  9. Dear all, I would like to know how to model the following problem: At creation, each entity gets a destination node. But 5 % of the entities have to make a stop-over at a certain node called "security check". After going through "security Check" the entity has to go to the destination he gained at creation. How to model such a "stop-over"? Thanks!
  10. Yes now I understand. Thank you!
  11. Thanks for the reply!! I tried this but I think it doesn't work. Could you take a look in the model I created?
  12. Dear all, I have a question about modelling arrivals. Entities have to arrive in groups of 5. These 5 entities can be of different entity types. Now in my model, each time an entity "group" of 5 entities arrives, they are all from the same entity type. This is probably because first is decided which type the group will be, and then the 5 entities are created. Each time these 5 entities arrive, there is a Table Reference Assignment referring to the "productmix", from where is decided which entity types will be created. All the entities in the arrival have to be as the percentage in the producttable. So more types per arrival group can arrive. Does somebody know how to model this? Thanks. My model is included as an attachment.
  13. I would like to create a state variable for the total distance travelled of all the vehicles in my system. In the results tab, for each vehicle the total "DistanceTravelled" has been given after a run. Is it possible to sum up all these "DistanceTravelled" of all vehicles in a state variable? (So I can eventually calculate the total fuel costs of the system) To calculate (sum up) these distances manually takes a lot of time.
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