Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 - Manual (Page 199)

Chapter 7
Reference Materials
7-14
Glossary
Adapter Board – A circuit board required to convert information to and
from an external device to the format required by the Main Control Board
microbus.
Analog – A control system with continuously adjustable voltage or
current level.
Binary – A numbering system using the base 2 Radix. The value can be 0
or 1.
Bit – One binary digit of data consisting of 0 or 1.
Default – Value provided for a parameter as part of the program when the
Drive is initially started.
Programming Terminal – Programming device used to enter and
monitor parameters in the Bulletin 1395 Drive.
Digital – A control system that uses two specific voltage or current signal
levels which correspond to 1 or 0.
Configuration Parameter – A variable that is used to pass values
between processes on a real time basis for Drive control.
Fault – A Drive condition that is monitored and displayed on the
Programming Terminal.
Firmware – The non-changeable portion of the software program that
defines relationships between the parameters.
Hardware – That portion of the software program that defines
relationships between the parameters.
Hexadecimal – Number system using the base 16, Radix.
Interface – 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 the exchange of digital information between the microprocessor chips
at the microprocessor level. The microbus is used for transfer of
information between the control microprocessors located on the Main
Control Board. In addition, it allows for connection of two adapter boards
through two ports.
Microprocessor – A silicon chip that can be programmed to process data.
Setup Parameter – A variable that is given a constant value for a
specified application.