Simulink Reference

Clock

Display and provide the simulation time

Library

Sources

Description

The Clock block outputs the current simulation time at each simulation step. This block is useful for other blocks that need the simulation time.

When you need the current time within a discrete system, use the Digital Clock block.

Data Type Support

A Clock block outputs a real-valued signal of type double.

Parameters and Dialog Box

Display time

Use the Display time check box to display the current simulation time inside the Clock block icon.

Decimation

The Decimation parameter value is the increment at which the clock is updated; it can be any positive integer. For example, if the decimation is 1000, then, for a fixed integration step of 1 millisecond, the clock updates at 1 second, 2 seconds, and so on. Note that if this parameter is not zero, the simulation must use a fixed-step solver to ensure accurate clock updates.

Characteristics

Sample Time	Continuous
Scalar Expansion	N/A
Dimensionalized	No
Zero Crossing	No

Chirp Signal

Combinatorial Logic