Parameters, Intermediate linguistic variable – Rockwell Automation RSLogix 5000 Fuzzy Designer User Manual

Page 46

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Publication LOGIX-UM004A-EN-P - March 2007

46 FuzzyDesigner Component Library

The input value link of the output Takagi-Sugeno variable can be
connected to components providing a crisp value, such as:

• Input Port component.
• Output Linguistic Variable component.
• PID component.
• Output Takagi-Sugeno Variable component.

The output value link of the output Takagi-Sugeno variable can be
connected to components expecting a crisp value, such as:

• Output Port component.
• Input Linguistic Variable component.
• Output Takagi-Sugeno Variable component (only crisp values

are considered).

• PID component (only crisp values are considered).

The output logical link of the output Takagi-Sugeno variable can be
connected to components expecting a DOF value (as result of
fuzzification or defuzzification), such as the Rule Block component.

Parameters

• Name of the component
• Range of the input value of the component [y

min

, y

max

]

• List of functional terms described by

The name

The type of the function

The vector of the function parameters [a

0

, a

1

, … , a

n

] for the

linear function, [a

0

] for the constant function

• Default value

Intermediate Linguistic
Variable

The fuzzy system Intermediate Linguistic Variable component is used
as a buffer allowing logical chaining of rule blocks.

The component consists of linguistic terms with symbolic meaning.
Each linguistic term is defined by its name. Degrees of fulfillment of
all terms are results of previous logic inference in preceding rule
blocks connected to this component.

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