Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 - Manual (Page 13)

Preface P–6
Publication 1336 FORCE–5.18 –– March, 1999
This term: Has the following definition:
Per–unit
numbering
Per-unit numbering is a numbering system that defines a specific
numeric value as representing 100% of a particular quantity being
measured. The number 4096 is used in many places in the drive to
represent one per unit.
Sink parameters
(Read and Write
parameters)
Sink parameters accept data from other parameters. The drive then uses
this data to perform the desired functions. An example of a sink
parameter is the external velocity reference parameter that accepts a
speed reference from a device such as a PLC. Throughout this manual,
the following symbol indicates a sink parameter:
Source
parameters
(Read–only
parameters) Source parameters provide real-time information that is available for
other devices to use. These devices can include PLC controllers,
operator interface devices, programming terminals, etc. Throughout this
manual, the following symbol indicates a source parameter:
Trending
Trending is a diagnostic tool used to capture and retain an input
parameter data value (such as velocity feedback) until a trigger
condition (drive fault or malfunction condition) halts or suspends
sampling.
The following conventions are used throughout this manual:
•
Bulleted lists provide information, not procedural steps.
•
Numbered lists provide sequential steps or hierarchical
information.
Common Techniques Used in
this Manual