Triggered Subsystem

Event-Driven Power: Unleashing Logic with Simulink Triggered Subsystems

Triggered Subsystem: A Triggered Subsystem is a type of Simulink subsystem that only executes its contents (the blocks and signals inside it) when a specific condition is met on its trigger port. Unlike an Enabled Subsystem (which executes while a signal is high), a Triggered Subsystem responds to a change in the trigger signal – typically a rising edge, a falling edge, or either edge.

Example: A Simple Counter Triggered by a Button Press, (where a counter increments / decrements only when a "button" is pressed (simulated by a pulse). The counter will hold its value between presses).

1. Rising Edge: Where a counter increments by 1 in every 10 seconds only when a "button" is pressed.

Result:

2. Falling Edge: Where a counter decrements by 1 in every 10 seconds only when a "button" is pressed.

Result:

Key Advantages:

1. Event-Driven Execution: Execute logic only when an event happens, saving computational resources compared to continuous execution.

2. Resource Optimization: Crucial for embedded systems where CPU cycles and memory are precious. Avoids running code unnecessarily.

3. Precise Response to Events: Guarantees that the subsystem's logic is activated exactly when the triggering event occurs, making it ideal for reactive systems.

4. State Initialization: Can be configured to reset its internal states every time it's triggered, providing a fresh start for computations.

5. Clarity & Modularity: Encapsulates event-driven behavior, making the overall model cleaner and easier to understand.

For more info on Types of Subsystems, please look into this, 
https://justsimulink.blogspot.com/2025/06/simulink-subsystems.html

***Happy Learning***