Allen-Bradley ControlLogix Reference Manual

Chapter 3
Interpret the Attribute Tables
90 Rockwell Automation Publication MOTION-RM003I-EN-P - February 2018
Column Heading Description
Semantics of Values The meaning of the attribute values.
For example: Position Units / Sec.
Tag access is supported by value is valid only when Auto Tag Update of the Motion
Group Object is enabled.
There may be additional information in the description that directly follows the
attribute listing.
CST Coordinated System Time
See also
Device Function Codes on page 91
CIP Data Types on page 91
Identify Motion Axis Attributes Based on Device Function Codes on page
95
CIP Axis Attributes on page 185
Attribute Units define the unit nomenclature found in the Semantics of Values
column for many of the Motion Control Axis Attributes. In general, attribute
values are specified in units that are relevant to motion control engineers.
Attribute Unit Cross-referencing
Attribute Unit Applicable Units Semantics of Values
Position Unit User String
User-defined unit of measure of motion displacement, for
example, meters, feet, inches, millimeters, revolutions, or
degrees.
Velocity Units Position Units/Sec For example, Revs/Sec, Inches/Sec
Accel Units Position Units/Sec
2
For example, Revs/Sec
2
, Inches/Sec
2
Jerk Units Position Units/Sec
3
For example, Revs/Sec
3
, Inches/Sec
3
% Device Rated %
Defined as the percentage of the continuous rating of the
device with 100% implying operation at the continuous rated
specification for the device.
This unit can be applied to attributes related to speed,
torque, force, current, voltage, and power.
Applicable devices can be a motor, inverter, converter, or a
bus regulator.
This unit can be used independent of whether the attribute
value represents an instantaneous level or a time-averaged
level; the appropriate unit for the device rating is implied. As
with all attributes that are in units of %, an attribute value of
100 means 100%.
Power Units Kw Kilowatts
Inertia Units Kg-m
2
Kilogram-Meter
2
Mass Units Kg Kilogram
Loop Bandwidth Units Hz Hertz
Attribute Units

Allen-Bradley ControlLogix Specifications

General

Brand	Allen-Bradley
Model	ControlLogix
Category	Industrial Electrical
Language	English