Continuous

R2026b

Blocks for modeling continuous-time dynamics, such as Integrator, Transfer Function, and PID Controller

Use blocks from the Continuous library to model systems that change smoothly over time. Continuous blocks produce outputs at every simulation time step rather than at discrete intervals. Use these blocks to compute derivatives, integrate signals, introduce transport delays, implement PID controllers, or represent linear systems as transfer functions or state-space models.

To add blocks from this library to your model, see Add Blocks to Models.

Blocks

	Derivative	Compute approximate continuous derivative of continuous input signal with respect to time
	Descriptor State-Space	Model continuous linear system as system of implicit state-space equations
	Entity Transport Delay	Introduce a delay in propagation of a SimEvents message
	First Order Hold	Implement linearly extrapolated first order hold on input signal
	Integrator	Integrate signal
	PID Controller	Continuous-time or discrete-time PID controller
	PID Controller (2DOF)	Continuous-time or discrete-time two-degree-of-freedom PID controller
	Second-Order Integrator	Second-order integration of input signal
	State-Space	Model continuous linear system as system of explicit state-space equations
	Transfer Fcn	Model linear system as transfer function
	Transport Delay	Delay input by given amount of time
	Variable Time Delay	Delay input by variable amount of time
	Variable Transport Delay	Delay input by variable amount of time
	Zero-Pole	Model system using zero-pole-gain transfer function

Tools

Library Browser

Find and add blocks to model

Topics

Add Blocks to Models
Use the Library Browser and quick insert menu to insert blocks.
Model a Continuous System
Model a system with variables defined at all time values.

Related Information

Interactive Model Editing
Programmatic Model Editing

Featured Examples

Model Series RLC Circuit as Implicit State-Space System

Model a series RLC circuit as an implicit state-space system by using the Descriptor State-Space block.

Open Live Script

Model Conveyor Belt as Cyber-Physical System

Model a variable-speed conveyor belt as a cyber-physical system by combining continuous-time, discrete-event, and finite-state modeling techniques. The model in this example integrates the modeling techniques required to represent the cyber-physical system into a single simulation environment by using Simulink®, SimEvents®, and Stateflow®.

Open Live Script

Teaching Resources

Virtual Hardware and Labs for Controls

Learn the concepts of building open/closed loop feedback control systems, computing transfer functions, and performing position analysis.