Rockwell Automation RSLogix 5000 Fuzzy Designer - Manual (Page 77)

Publication LOGIX-UM004A-EN-P - March 2007
FuzzyDesigner Projects 77
– Port General group box – Enter general parameters of a new
or existing IP.
• Port Name – Specify the IP name. This name will be used
as the input parameter name when the fuzzy algorithm is
compiled to an Add-On Instruction.
• Use Filter – The IP input value can be filtered by a
user-defined filter. Click the Use Filter check box to set up
the Input Port filter.
• Butterworth Lowpass Filter – Click this radio button to set
the Butterworth Lowpass Filter parameters.
• Filter with Specific Transfer Function – Click this radio
button to set the user defined filter parameters.
• Get Transfer Function– When you want to read the transfer
function of the specified Butterworth Lowpass Filter (its
numerator and denominator), click this button. The
required numerator and denominator will be shown in the
appropriate text boxes of the Filter with Specific Transfer
Function group box.
– Butterworth Lowpass Filter group box – Specify parameters of
a Butterworth Lowpass filter.
• Filter Order – If you selected the Butterworth Lowpass
Filter radio button, enter the required filter order here.
• Cutoff Frequency – If you selected the Butterworth
Lowpass Filter radio button, enter the cutoff frequency
here.
– Filter with Specific Transfer Function group box – There are
two text boxes, for you to specify the filter parameters.
• Numerator Coefficients – If you selected the Filter with
Specific Transfer Function radio button, enter the
numerator coefficients here (see Input Port component
description). Separate coefficients with a space: b
0
b
1
…b
m
.
• Denominator Coefficients – If you selected the Filter with
Specific Transfer Function radio button, enter the
denominator coefficients here (see Input Port component
description). Separate coefficients with a space: a
1
…a
n.