Rockwell Automation 1395 Node Adapter Board - Manual (Page 13)

3 Chapter
3-1
Functional Description
Introduction Chapter 3 contains a general description of the functionality of the Bulletin
1395 Node Adapter Board. This description is intended to provide
sufficient background information to support other procedures in this
manual and enable the reader to:
S Configure the Drive for use with the Node Adapter Board.
S Interface the Drive with a PLC Controller.
This chapter is not intended to be an all encompassing technical description
of the Node Adapter Board.
Terminology A brief description of terms and concepts covered in this chapter are:
Configuration – The process of linking Sink to Source parameters.
Fast Parameter – Fast parameters are all parameters whose values are
updated every 1.0 millisecond. Fast parameters are used for real time data
input and output of the drive. Fast parameters are NOT backed up in
non-volatile memory.
Interface – The hardware and associated software required to transfer
information and/or control signals from one device to another.
Microbus – Hardware and associated software designed by Allen-Bradley
for exchange of digital information at the microprocessor level. The
Microbus is used for the transfer of information between the Node Adapter
Board and the Main Control Board.
Port – Main Control Board hardware which connects the Node Adapter
Board to the Microbus. There are two ports available on the Main Control
Board.
Parameter – Memory location used to store drive data. Each parameter is
given a number called the parameter number which may be specified in
decimal or hexadecimal. When the number is specified in hexadecimal, a
letter “H” will appear after the parameter number.
Parameter Table – A table of entries for configuration and setup
parameters used in the drive.
Source – Fast parameter used as a source of data.
Sink – Fast parameter used to receive data input.