Simulink Reference

Probe

Output a signal's attributes, including width, dimensionality, sample time, and/or complex signal flag

Library

Signal Attributes

Description

The Probe block outputs selected information about the signal on its input. The block can output the input signal's width, dimensionality, sample time, and/or a flag indicating whether the input is a complex-valued signal. The block has one input port. The number of output ports depends on the information that you select for probing, that is, signal dimensionality, sample time, and/or complex signal flag. Each probed value is output as a separate signal on a separate output port. The block accepts real or complex-valued signals of any built-in data type. It outputs signals of type double. During simulation, the block's icon displays the probed data.

Data Type Support

A Probe block accepts and outputs any data type supported by Simulink, as well as fixed-point data types.

For a discussion on the data types supported by Simulink, refer to Data Types Supported by Simulink in the Using Simulink documentation.

Parameters and Dialog Box

Probe width

If selected, output the width (number of elements) of the probed signal.

Probe sample time

If selected, output the sample time of the probed signal.

Probe complex signal

If selected, output 1 if the probed signal is complex; otherwise, 0.

Probe signal dimensions

If selected, output the dimensions of the probed signal.

Characteristics

Direct Feedthrough	Yes
Sample Time	Inherited from driving block
Scalar Expansion	Yes
Dimensionalized	Yes
Zero Crossing	No

Product

Pulse Generator