MATLAB SIMEVENTS RELEASE NOTES Guide de l'utilisateur télécharger pdf (Page 19)

Run a Sample Model

1-11

Entity connection line

Entity

output

port

Entity

input

port

Entity connection lines represent relationships among two blocks (or among their entity

ports) by indicating a path by which an entity can:

• Depart from one block

• Arrive simultaneously at a subsequent block

The preceding figure shows the connection line:

• From OUT, the entity output port of the FIFO Queue block

• To IN, the entity input port of the Start Timer block

When you run the simulation, entities that depart from the OUT port arrive

simultaneously at the IN port.

By convention, entity ports use labels with words in uppercase letters, such as IN and

OUT.

You cannot branch an entity connection line. If your application requires an entity to

arrive at multiple blocks, use the Replicate block to create copies of the entity.

Signals and Signal Ports

Some blocks in this model can process signals. Signals represent numerical quantities

defined at all times during a simulation, not only at a discrete set of times. Signals

appear as connection lines between signal ports of two blocks. The following figure shows

that the Start Timer block has not only an entity output port but also a signal output

port. The signal output port connects to the Random Service Time subsystem.

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MATLAB SIMEVENTS RELEASE NOTES Guide de l'utilisateur Page 19