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Library
Modeling Tutorial

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Library

Signal\Logical\Boolean

Use

Domains: Discrete, Continuous. Size: 1-D. Allowed in: Block Diagrams.

Implementations

This block has 8 implementations varying from a 2-input OR to a 9-input OR.

•

inputs_2

•

inputs_3

•

inputs_4

•

inputs_5

•

inputs_6

•

inputs_7

•

inputs_8

•

inputs_9

Description

The output signal of this submodel for the two-input OR is according the truth table below:

input1	input2	output
false	false	false
false	true	true
true	false	true
true	true	true

The output signal for the other OR implementations follows a similar pattern. The output signal is only false when all input signals are equal to false.

Interface

Port name	Data type	Description	Range
Inputs
input1	boolean	First OR input	false/true
input2	boolean	Second OR input	false/true
Outputs
output	boolean	Result of the OR operation	false/true

Restrictions

This block operates with boolean inputs. Real of integer inputs can also be used but will lead to a warning during processing. Be careful with using real or integer inputs: A value of 0.0 is converted to false, any other value is converted to true.