Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 14)

P–6
Publication 1336 FORCE–5.13 –– September, 1998
This term: Has the following definition:
Owner
parameters
The PLC Communications Adapter Board allows one or more control
devices or adapters to own start, jog, direction, and other control
functions. To avoid conflict, some owners are exclusive. For example,
only one device can issue a forward direction speed command. Others
have multiple control. For example, all devices can jog the drive in the
forward direction, but only at a set speed. Devices can, for example, jog
the drive in the forward direction only if the jog mask parameter allows
for it.
Parameter
entry
A parameter entry refers to the information stored in the drive that
contains the parameter number, parameter data, and all other information
related to the specific parameter.
Parameter table
A parameter table is a table of parameter entries for all configuration sink
and source parameters in the drive.
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