The default basic modeling template provided with Simulation Studio contains two blocks capable of generating entities: the Entity Generator block and the Clone block. These blocks are described in Appendix A: Templates. Entity Generator blocks are usually the primary source of entities in your simulation models. You can specify the quantity and type of entities you want your Entity Generator blocks to generate. If more than one entity is being generated, you need to have a connection to the Entity Generator block’s InterArrivalTime input port so the Entity Generator can determine when to schedule the next entity creation event. Multiple entities can be created at each entity creation event by using the BatchSize input port on the Entity Generator block. (See the Entity Generator details in Appendix A: Templates.) There is no limit on the number of Entity Generator blocks you can have in your simulation model, and the limit on the number of entities of a given type you can generate is the Java programming language value Integer.MAX_VALUE.