Probe (Simulink Reference)

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, including fixed-point data types, except int64 and uint64.

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

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

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