Sources

R2026b

Blocks that generate or load input signals for simulation, such as Constant, Sine Wave, and From Workspace

Use blocks from the Sources library to provide input signals for simulation.

Generate signals in your model using blocks such as Sine Wave and Constant.
Load signal data from the workspace or a file using blocks such as Playback, From Workspace, From File, and From Spreadsheet.
Create and edit signals interactively using the Signal Editor block.

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

Blocks

	Band-Limited White Noise	Introduce white noise into continuous system
	Chirp Signal	Generate sine wave with increasing frequency
	Clock	Display and provide simulation time
	Constant	Constant value
	Counter Free-Running	Count up and overflow back to zero after reaching maximum value for specified number of bits
	Counter Limited	Count up and wrap to zero after specified upper limit
	Digital Clock	Output simulation time at specified sampling interval
	Enumerated Constant	Generate enumerated constant value
	From File	Load data from MAT file into Simulink model
	From Spreadsheet	Read data from spreadsheet
	From Workspace	Load signal data from workspace into Simulink model
	Ground	Ground unconnected input port
	In Bus Element	Select input from external port
	Inport	Create input port for subsystem or external input
	Playback	Load data from workspace, file, or Simulation Data Inspector (Since R2022b)
	Pulse Generator	Generate square wave pulses at regular intervals
	Ramp	Generate constantly increasing or decreasing signal
	Random Number	Generate normally distributed random numbers
	Repeating Sequence	Generate arbitrarily shaped periodic signal
	Repeating Sequence Interpolated	Output discrete-time sequence and repeat, interpolating between data points
	Repeating Sequence Stair	Output and repeat discrete time sequence
	Signal Editor	Display, create, edit, and switch interchangeable scenarios
	Signal Generator	Generate various waveforms
	Sine Wave	Generate sine wave, using simulation time as time source
	Step	Generate step function
	Uniform Random Number	Generate uniformly distributed random numbers
	Waveform Generator	Output waveforms using signal notations