Instruction manual

Instruction Manual
760006-A
September 2001
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-5
Model NGA 2000 Platform
Control module
A Platform containing a Controller computer, a display and a keyboard. Used to view Analyzer data, and
configure and troubleshoot the entire NGA 2000 system.
Controller Board
The Controller Board in the Platform which runs the software program that operates the Display, Keypad
and Network Manager. The Controller Board plugs into the Backplane from the Platform front.
DDE
Dynamic Data Exchange - a Microsoft Windows function that allows programs to talk to other programs. It
is rather slow and primitive, but is a recognized standard.
DDE Server
A program running under Windows that provides DDE communication to Windows applications. The
Rosemount DDE server allows such applications to communicate seamlessly to NGA 2000 Analyzers.
DIO
Digital input/output board, a special I/O Module that works with the platform to provide many digital I/O
lines.
Distribution Assembly
The Distribution Assembly consists of the Backplane and the card cages in the Platform Module that con-
tain I/O Board(s) and Expansion Board(s).
Expansion Board
The Expansion Board performs special features not related to I/O functions. The Expansion Board plugs
into the Backplane from the Platform front.
Expert
Refers to the controls and configuration capability appropriate for engineering personnel.
Failure
A form of alarm: Failure indicates an unrecoverable hardware or software failure such as some component
not responding to network communications or a safety related failure such as lack of purge air in a Flame
Ionization Detection Analyzer module.
FID
Flame Ionization Detector - refers to the hydrocarbon Analyzer. This ionizes hydrocarbons in a flame, and
measures the resultant current.
HOME
The main menu, the top menu of the NGA 2000 menu system. Pressing the HOME softkey always returns
to this point.
I/O Board
The optional I/O Board(s) provide input/output functions. The I/O Board(s) plug into the Backplane from the
rear of the Platform.
I/O Module
An auxiliary module that provides some sort of interface to the outside world. I/O modules may include
analog outputs, relay contacts, and digital interfaces. In general, they are mounted in platforms as options.