Designer Instruction Manual

Publication LOGIX-UM004A-EN-P - March 2007
52 FuzzyDesigner Component Library
Connections
The input logical link of the Rule Block can be connected to a
component providing a DOF value (as a result of fuzzification or
defuzzification), such as the:
• Input Linguistic Variable component.
• Output Takagi-Sugeno Variable component.
• Output Linguistic Variable component.
• Intermediate Linguistic Variable component.
The output logical link of the Rule Block can be connected to
components expecting a DOF value (as result of fuzzy inference),
such as the:
• Output Takagi-Sugeno Variable component.
• Output Linguistic Variable component.
• Intermediate Linguistic Variable component.
Parameters
• Name of the component
• List of links to premise variables
• List of links to consequent variables
• Type of t-norm
PID Controller
The fuzzy system PID component enables you to design an intelligent
supervision of a conventional PID controller.
The following symbols and terminology are used in description of the
component:
• PV – process variable
• CV – control variable
• SP – set point
• E – error, E = SP-PV
• P- proportional gain,
• I- integral gain,
• D- derivative gain
• Man – manually set value of CV
• Mode – controller mode