Using Simulink

Sign

Indicate the sign of the input.

Library

Math

Description

The Sign block indicates the sign of the input:

• The output is 1 when the input is greater than zero.
• The output is 0 when the input is equal to zero.
• The output is -1 when the input is less than zero.

Data Type Support

A Sign block accepts and outputs real signals of type double.

Dialog Box

Characteristics

Direct Feedthrough	Yes
Sample Time	Inherited from driving block
Scalar Expansion	N/A
Dimensionalized	Yes
Zero Crossing	Yes, to detect when the input crosses through zero

S-Function

Signal Generator