Rockwell Automation 1395 Digital Reference Adapter Board - Manual (Page 26)

5 Chapter
5-1
Programming Parameters
Introduction
This chapter contains the information required to assist you in Chapter 6
when programming the Digital Reference Adapter for your application.
Terminology
Following is a brief description of new terms and concepts covered in
Chapter 5.
Configuration The process of linking Sink to Source parameters.
Configuration
Parameters
Parameters used to transfer data between the Drive
Control and external devices. The configuration
parameters are categorized into two types; Source
Parameters and Sink Parameters.
Drive Units The actual value of the parameter as it is stored
within the Drive parameter table. The Drive units
may be converted to engineering units or to
hexidecimal for display using the Programming
Terminal, or they may be displayed directly in Drive
units.
Engineering Units A label given to parameter data which specifies what
units are to be used to display the parameter value on
the Programming Terminal. Examples of engineering
units include: RPM, % etc.
Fast Parameters Fast parameters are all parameters whose values are
updated every 2 milliseconds and are used for the real
time data input and output of the drive. Fast
parameters are backed up in volatile memory only.
Non-Volatile
Memory
Data memory in the Drive which retains the values of
all data even when power is disconnected from the
Drive control. EEPROM (Electrically Erasable
Programmable Read Only Memory) chips are used
for the 1395 non-volatile memory to store some of
the Drive parameters.
Parameter Memory location used to store drive data. Each
parameter is given a number called the parameter
number. The parameter value may be specified in
decimal or hexadecimal. When specified in
hexadecimal, the word “Hex” will appear after the
parameter value.