Allen-Bradley PowerFlex 755 Reference Manual

CIP Axis Attributes
Chapter 4
Rockwell Automation Publication MOTION-RM003I-EN-P - February 2018 341
Interpolated Position Configuration
Usage Access T Data Type Default Min Max Semantics of Values
Required - E
Set/
SSV
T DWORD 0:0
1:1
- - Bitmap
0 = 2
nd
Order Actual Position
Interpolation
1 = 2
nd
Order Command Position
Interpolation
This bit mapped attribute configures the interpolation algorithm used to calculate
Interpolated Actual Position and Interpolated Command Position based on axis
position history based on the current value of Interpolation Time.
The 2
nd
Order Actual Position Interpolation bit controls the order of the
interpolation algorithm used to calculate Interpolated Actual Position based on
Interpolation Time. If the bit is set, 2
nd
order interpolation is used. If the bit is
clear, 1
st
order interpolation is used. Generally, 2
nd
order interpolation results in
more accurate estimates of position, but if the actual position signal has high levels
of quantization noise, 1
st
order interpolation gives better results.
The 2nd Order Command Position Interpolation bit controls the order of the
interpolation algorithm used to calculate Interpolated Command Position based
on Interpolation Time. If the bit is set, 2
nd
order interpolation is used. If the bit is
clear, 1
st
order interpolation is used. Generally, 2
nd
order interpolation results in
more accurate estimates of position, but if the command position signal has high
levels of quantization noise, 1
st
order interpolation gives better results.
See also
Motion Control Interface Attributes on page 323
These are the motion control status attributes associated with a Motion Control
Axis. The Axis Event Bits are located in Event Capture Attributes.
Motion Control Status
Attributes

Allen-Bradley PowerFlex 755 Specifications

General

Brand	Allen-Bradley
Model	PowerFlex 755
Category	Controller
Language	English