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Combine Entity Paths

5-15

Path Combiner Versus Input Switch

The Input Switch block, described in “Select Arrival Path Using Input Switch” on page

5-9, has multiple entity input ports and one entity output ports. The same is true for the

Path Combiner block. These two blocks differ in that

• The Path Combiner block's acceptance of an entity arrival does not depend on which

port the entity arrives at. By contrast, the Input Switch block accepts only those

entities that arrive at the block's selected entity input port.

• The Path Combiner block's Input port precedence parameter is relevant only in

the specific situation described in “Input Port Precedence” online. By contrast, the

Input Switch block's Switching criterion parameter governs the block's behavior

throughout the simulation.

When deciding whether to use a Path Combiner or Input Switch block in your model,

consider how you want the simulation to behave when one source of entities is dormant

for a long time but another source of entities is not. If you want the routing block to

wait until an entity finally departs from the dormant source, then an Input Switch

block would be more appropriate. If you want the routing block to accept arrivals from

other entity sources that are not dormant, then a Path Combiner block would be more

appropriate.

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MATLAB SIMEVENTS RELEASE NOTES Guia do Utilizador Página 105