SimEvents®

Creating Entity-Departure Subsystems

Overview of Entity-Departure Subsystems

You can create a subsystem that executes only when an entity departs from a particular block in your model. The figure below shows a prototype, although most ports are not yet connected. The prototype uses the Entity-Based Function-Call Event Generator block to generate a function call when an entity departs. The function call executes the subsystem.

Prototype of Entity-Departure Subsystems

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Accessing Blocks for Entity-Departure Subsystems

To create discrete event subsystems that respond to entity departures, use some or all of the blocks listed below.

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Setting Up Entity-Departure Subsystems

To create subsystems that respond to entity departures, follow the procedure below.

1. Insert and configure the Function-Call Subsystem block as described in Setting Up Function-Call Subsystems in SimEvents^® Models.

2. Insert one or more of these blocks into your model. The first is easier to use but less flexible.

   • Entity-Based Function-Call Event Generator

   • Entity Departure Event to Function-Call Event

   Note   You can configure these blocks to issue a function call either before or after the entity departs. In most situations, the After entity departure option is more appropriate. The Before entity departure option can be problematic if a subsystem is executed too soon, but is an appropriate choice in some situations.

3. Connect the newly inserted blocks to indicate which entity departures should call the subsystem. If entity departures from multiple blocks should call the subsystem, then combine multiple function-call signals using a Mux block.

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Examples Using Discrete Event Subsystem Blocks

Examples Using Entity-Departure Subsystems