Instruction Manual
748418-C
July 2003
Model NGA2000 Platform
http://www.processanalytic.com
ESSENTIAL INSTRUCTIONS
READ THIS PAGE BEFORE PROCEEDING!
Rosemount Analytical designs, manufactures and tests its products to meet many national and international standards. Because these instruments are sophisticated techni cal products, you
MUST properly install, use, and maintain them
normal specifications. The following instructions MUST be adhered to and integrated into your
safety program when installing, using, and maintaining Rosemount Analytical products. Failure to
follow the proper instructions may cause any one of the following situations to occur: Loss of life;
personal injury; property damage; damage to this instrument; and warranty invalidation.
to ensure they continue to operate within their
• Read all instructions
prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Rosemount Analytical repre-
sentative for clarification.
• Follow all warnings, cautions, and instructions
marked on and supplied with the product.
• Inform and educate your personnel in the proper installation, operation, and mainte-
nance of the product.
• Install your equipment as specified in the Installation Instructions of the appropriate In-
struction Manual and per applicable local and national codes. Connect all products to the
proper electrical and pressure sources.
• To ensure proper performance, use qualified personnel
to install, operate, update, program,
and maintain the product.
• When replacement parts are required, ensure that qualified people use replace ment parts
specified by Rosemount. Unauthorized parts and procedures can affect the product’ s performance, place the safe operation of your process at risk, and VOID YOUR WARRANTY
.
Look-alike substitutions may result in fire, electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protective covers are in place, except
when maintenance is being performed by qualified persons, to prevent electrical shock
and personal injury.
The information contained in this document is subject to change without notice.
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IBM
Emerson Process Management
Rosemount Analytical Inc.
Process Analytic Division
1201 N. Main St.
Orrville, OH 44667-0901
T (330) 682-9010
F (330) 684-4434
e-mail: gas.csc@EmersonProcess.com
http://www.processanalytic.com
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is a U.S. registered trademark of Microsoft Corporation .
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is a U.S. registered trademark of Echelon Corporation.
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is a U.S. registered trademark of International Business Machines.
Model NGA2000 Platform
TABLE OF CONTENTS
PREFACE...........................................................................................................................................P-1
Intended Use Statement.....................................................................................................................P-1
Definitions...........................................................................................................................................P-1
Safety Summary.................................................................................................................................P-2
Documentation....................................................................................................................................P-4
Compliances.......................................................................................................................................P-4
Glossary Of Terms ...........................................................................................................................P-5
1-0 DESCRIPTION AND SPECIFICATIONS..............................................................................1-1
1-1 The NGA2000 Concept - Introduction...................................................................................1-1
1-2 The Digital Communications System – Introduction ............................................................1-1
1-3 Platform Overview.................................................................................................................1-2
1-4 The LON – The Nga Digital Communications Network.........................................................1-3
1-5 PC Interface...........................................................................................................................1-4
1-6 Instruction Manuals ...............................................................................................................1-4
a. Platform Manual - Overview............................................................................................1-4
b. Analyzer module Manuals - Overview............................................................................1-4
c. NGA2000 Reference Manual - Overview........................................................................1-5
1-7 Platform Components............................................................................................................1-5
a. Operator Interface...........................................................................................................1-5
b. Platform Controller Board ...............................................................................................1-6
c. Power Input Module/Power Supply.................................................................................1-7
d. Distribution Assembly Components................................................................................1-8
1-8 Software/Displays..................................................................................................................1-9
1-9 Multiple Module Components and System Integration..........................................................1-10
1-10 I/O Module.............................................................................................................................1-16
a. Overview.........................................................................................................................1-16
b. Analog Functions And I/O Connections..........................................................................1-19
c. Additional I/O Modules....................................................................................................1-21
1-11 Specifications.........................................................................................................................1-22
a. Platform...........................................................................................................................1-22
b. I/O Module.......................................................................................................................1-22
c. 30 Amp Bulk Power Supply ............................................................................................1-23
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2-0 INSTALLATION ....................................................................................................................2-1
2-1 Unpacking..............................................................................................................................2-1
2-2 location ..................................................................................................................................2-1
2-3 Electrical Requirements.........................................................................................................2-2
2-4 Gas Requirements.................................................................................................................2-2
2-5 I/O Requirements ..................................................................................................................2-2
2-6 I/O Module.............................................................................................................................2-2
a. Installation.......................................................................................................................2-2
b. Removal..........................................................................................................................2-3
c. Software Configuration ...................................................................................................2-3
d. Binding Procedure v2.2...................................................................................................2-3
e. Binding Procedure - Software v2.3 and higher..............................................................2-5
2-7 Sample Handling...................................................................................................................2-6
Rosemount Analytical Inc. A Division of Emerson Process Management Contents i
Instruction Manual
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July 2003
Model NGA2000 Platform
3-0 OPERATION .........................................................................................................................3-1
3-1 Overview................................................................................................................................3-1
3-2 Software Menu Structure.......................................................................................................3-1
3-3 Security..................................................................................................................................3-2
3-4 Using The User Interface.......................................................................................................3-2
a. Using The Menus............................................................................................................3-2
b. Using The Help Screens.................................................................................................3-4
3-5 Startup...................................................................................................................................3-4
3-6 Display setup.........................................................................................................................3-5
3-7 Operation...............................................................................................................................3-5
3-8 Correct operation...................................................................................................................3-5
4-0 MAINTENANCE AND TROUBLESHOOTING .....................................................................4-1
4-1 Maintenance Overview..........................................................................................................4-1
4-2 Fuse Replacement ................................................................................................................4-1
4-3 Controller Board Replacement..............................................................................................4-2
4-4 Power Input Module Replacement........................................................................................4-2
4-5 Power Supply Replacement..................................................................................................4-2
4-6 Front Panel Assembly Replacement.....................................................................................4-3
4-7 System Troubleshooting........................................................................................................4-3
5-0 REPLACEMENT PARTS......................................................................................................5-1
5-1 Matrix.....................................................................................................................................5-1
5-2 Platform Components............................................................................................................5-2
5-3 Multi-Module Component Parts List ......................................................................................5-2
6-0 ANALOG I/O MODULE.........................................................................................................6-1
6-1 Description.............................................................................................................................6-1
6-2 Alarm Description v2.2 ..........................................................................................................6-1
6-3 Alarm Description v2.3 ..........................................................................................................6-3
6-4 Installation..............................................................................................................................6-5
a. Initial Setup Procedure....................................................................................................6-5
b. Analog I/O Module Calibration Procedure......................................................................6-8
c. Analog Output Over/Under Limits...................................................................................6-9
6-5 Analog I/O Module Track And Hold Feature .........................................................................6-10
6-6 Analog I/O Module: Relay Operation Check Procedure........................................................6-11
6-7 Analog I/O Module Range Control Discussion......................................................................6-12
6-8 Analog I/O Module Output Connections................................................................................6-13
7-0 SINGLE ANALYZER ANALOG AUTOCAL I/O MODULE...................................................7-1
7-1 Description.............................................................................................................................7-1
7-2 Installation..............................................................................................................................7-3
a. Autocalibration Sequence Setup.....................................................................................7-3
7-3 Operation...............................................................................................................................7-6
a. Initializing A Calibration...................................................................................................7-6
ii Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 Platform
8-0 SYSTEM AUTOCAL I/O MODULE.......................................................................................8-1
8-1 Description.............................................................................................................................8-1
8-2 Installation..............................................................................................................................8-3
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9-0 EXCEL-BASED PC INTERFACE.........................................................................................9-1
9-1 Description.............................................................................................................................9-1
9-2 General Requirements ..........................................................................................................9-1
9-3 Excel-Based PC Interface Software Requirements ..............................................................9-1
9-4 Excel-Based PC Interface Hardware Requirements.............................................................9-1
9-5 Excel-Based PC Interface Software Product Specifications.................................................9-2
9-6 PC Interface Package............................................................................................................9-2
9-7 Excel-Based PC Interface Installation...................................................................................9-2
9-8 NGA Variable Library.............................................................................................................9-3
9-9 Excel-Based PC Interface Multiple Platform Systems ..........................................................9-4
10-0 MODBUS...............................................................................................................................10-1
10-1 Introduction............................................................................................................................10-1
10-2 Implementation......................................................................................................................10-1
10-3 Addressing.............................................................................................................................10-3
a. Modbus Device Addressing (DA)....................................................................................10-3
b. Modbus Register Addressing..........................................................................................10-4
10-4 Modbus Function Code Descriptions ....................................................................................10-6
a. Function 03 (decimal) - Read Holding Registers............................................................10-6
b. Function 04 (decimal) - Read Input Registers................................................................10-7
c. Function 06 (decimal) - Preset Single Registers ............................................................10-8
d. Function 08 (decimal) - Loopback Test...........................................................................10-9
e. Function 16 (decimal) - Preset Multiple Registers..........................................................10-10
10-5 Modbus Configuration ...........................................................................................................10-11
a. Modbus User Defined Addressing..................................................................................10-12
b. Modbus configuration - Front Panel Menu......................................................................10-14
11-0 LOCAL I/O MODULE............................................................................................................11-1
11-1 Description.............................................................................................................................11-1
11-2 Binding...................................................................................................................................11-1
11-3 Installation..............................................................................................................................11-1
11-4 Setup .....................................................................................................................................11-1
11-5 Calibration Procedure............................................................................................................11-4
11-6 Troubleshooting.....................................................................................................................11-5
11-7 Connections...........................................................................................................................11-6
12-0 RETURN OF MATERIAL....................................................................................................12-1
12-1 Return Of Material.................................................................................................................12-1
12-2 Customer Service..................................................................................................................12-1
12-3 Training..................................................................................................................................12-1
Rosemount Analytical Inc. A Division of Emerson Process Management Contents iii
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13-0 APPENDIX A. NGA MENU STRUCTURE...........................................................................13-1
13-1 Introduction............................................................................................................................13-1
13-2 Control Module Menus ..........................................................................................................13-1
13-3 I/O Module Control Screens..................................................................................................13-2
a. Analog I/O Module Configuration Screens.....................................................................13-3
b. Single Autocalibration I/O Module Configuration Screens..............................................13-5
c. System Autocalibration I/O Module Configuration Screens............................................13-6
d. Technical level Configuration Screens............................................................................13-7
13-4 System Setup ........................................................................................................................13-8
13-5 Service Menus.......................................................................................................................13-10
a. Control Module Diagnostics............................................................................................13-10
b. I/O Module Diagnostic Screens......................................................................................13-11
14-0 APPENDIX B. USER INTERFACE HELP ...........................................................................14-1
14-1 User Interface Help Instructions............................................................................................14-1
14-2 Menu Items............................................................................................................................14-1
15-0 APPENDIX C. MENU SCREENS.........................................................................................15-1
Model NGA2000 Platform
iv Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 Platform
LIST OF ILLUSTRATIONS
Figure 1-1. Single Analyzer Display ..................................................................................................1-6
Figure 1-2. Multiple Analyzer Display (Showing Two Analyzers)......................................................1-6
Figure 1-3. Rear View Of Power Input Module..................................................................................1-8
Figure 1-4. Measurement Display .....................................................................................................1-9
Figure 1-5. Dual Analyzer Enclosure.................................................................................................1-12
Figure 1-6. Dual Analyzer Enclosure With Two Analyzers (front view, cover removed)...................1-12
Figure 1-7. Single Analyzer Enclosure With One Analyzer (front view, cover removed)..................1-12
Figure 1-8. Wiring NGA2000 Systems..............................................................................................1-14
Figure 1-9. Supporting Multi Platform Integration..............................................................................1-15
Figure 1-10. I/O Modules Location In Platform (Instrument Configuration).......................................1-16
Figure 1-11. I/O Module Location In Platform – Rear Panel View (Instrument Configuration) .........1-17
Figure 1-12. Analog I/O Module Component Location And Mounting Dimensions...........................1-17
Figure 1-13. Analog I/O Module Backplane Connector Pin Assignments.........................................1-18
Figure 1-14. Analog I/O Module Output Connector/Adapter Pin Assignments.................................1-20
Figure 3-1. Platform Front Panel.......................................................................................................3-1
Figure 3-2. Typical Menu...................................................................................................................3-3
Figure 3-3. First Help Menu...............................................................................................................3-4
Figure 3-4. Single Analyzer Display ..................................................................................................3-5
Figure 6-1. Analog Output Module Setup Menu................................................................................6-5
Figure 6-2. Analog Output Parameter Menu.....................................................................................6-5
Figure 6-3. v2.2 Alarm Parameter Menu...........................................................................................6-6
Figure 6-4. v2.2 Concentration Alarm Parameters............................................................................6-6
Figure 6-5. Analog Output Module Setup Menu – v2.3.....................................................................6-7
Figure 6-6. Alarm Condition Menu – v2.3..........................................................................................6-7
Figure 6-7. Concentration Alarm Parameters Menu - v2.3 ..............................................................6-7
Figure 6-8. Typical Concentration Alarm Parameter Menu - v2.3.....................................................6-8
Figure 6-9. Voltage Output Calibration Menu....................................................................................6-8
Figure 6-10. Current Output Calibration Menu..................................................................................6-8
Figure 6-11. Output Parameters Menu..............................................................................................6-10
Figure 6-12. First Relay Status Menu................................................................................................6-11
Figure 6-13. Analog I/O Module Output Connector/Adapter Pin Assignments.................................6-13
Figure 7-1. Autocalibration Module Setup Menu...............................................................................7-3
Figure 7-2. Autocalibration Module Timing Parameters Menu..........................................................7-3
Figure 7-3. Typical Gas Valve Control Menu ....................................................................................7-4
Figure 7-4. General Valve Parameters Menu....................................................................................7-5
Figure 7-5. Automatic Calibration Menu............................................................................................7-6
Figure 7-6. Manual Calibration Menu................................................................................................7-6
Figure 7-7. Output Connector/Adapter Pin Assignments..................................................................7-7
Figure 9-1. Using The PC Interface With Multiple NGA Systems.....................................................9-4
Figure 11-1. Output Calibration Menu...............................................................................................11-4
Figure 11-2. 9 Pin Sub-D Connector Pin Identification......................................................................11-6
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Rosemount Analytical Inc. A Division of Emerson Process Management Contents v
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Table 1-1. Node Count And Power Consumption For NGA2000 System Integration.......................1-11
Table 1-2. I/O Module Features.........................................................................................................1-18
Table 1-3. Analog I/O Module Specifications....................................................................................1-19
Table 2-1. User Tag Numbers...........................................................................................................2-4
Table 6-1. Available Functions – Analog Output with 3 Alarms (v2.2).............................................6-2
Table 6-2. Alarm Relay Configuration Matrix (v2.2)..........................................................................6-2
Table 6-3. Available Functions – Analog Output with 3 Alarms (v2.3)..............................................6-4
Table 6-4. Available Alarms – Analog Output with 3 Alarms (v2.3) ..................................................6-4
Table 7-1. Autocalibration Module - Input Line Range Control.........................................................7-1
Table 7-2. Available Functions – Single Analyzer Autocalibration I/O Module v2.2 ........................7-2
Table 8-1. Available Functions - System Autocalibration I/O Module v2.2 .......................................8-2
Table 8-2. Output Connector/Adapter Pin Assignments...................................................................8-4
Table 9-1. Variables For Use In Excel Spreadsheets.......................................................................9-4
Table 10-1. NGA Modbus Functions.................................................................................................10-1
Table 10-2. Event Table Assignment ................................................................................................10-3
Table 10-3. Modbus “All Variable” Address Table.............................................................................10-4
Table 10-4. “Must Be Supported” Register Addresses......................................................................10-5
Table 10-5. Modbus “User Defined” Register Address Example......................................................10-5
Table 10-6. Modbus Function 03 Message.......................................................................................10-6
Table 10-7. Modbus Function 03 Response From The Slave Device...............................................10-6
Table 10-8. Modbus Function 04 Message.......................................................................................10-7
Table 10-9. Modbus Function 04 Response From The Slave Device...............................................10-7
Table 10-10. Modbus Function 06 Message.....................................................................................10-8
Table 10-11. Modbus Function 06 Response From The Slave Device.............................................10-8
Table 10-12. Modbus Function 08 Message.....................................................................................10-9
Table 10-13. Modbus Function 08 Response From The Slave Device.............................................10-9
Table 10-14. Modbus Function 16 Message.....................................................................................10-10
Table 10-15. Modbus Function 16 Response From The Slave Device.............................................10-10
Table 10-16. Modbus ASCII And RTU Comparison..........................................................................10-11
Table 10-17. Modbus Configuration Variables..................................................................................10-12
Table 10-18. Modbus Configuration Variable Addresses..................................................................10-13
Table 10-19. Modbus Address Assignment Example .......................................................................10-13
Table 11-1. Local I/O Module Alarm Functionality ............................................................................11-3
Table 11-2. 25 Pin Sub-D Connector Pin Identification.....................................................................11-6
Model NGA2000 Platform
LIST OF TABLES
vi Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model NGA2000 Platform
PREFACE
INTENDED USE STATEMENT
The purpose of this manual is to provide information concerning the components, functions, installation and
maintenance of the NGA2000 Platform and the System Accessories of the NGA2000 System.
Some sections may describe equipment not used in your configuration. The user should become thoroughly familiar with the operation of this module before operating it. Read this instruction manual completely.
DEFINITIONS
The following definitions apply to DANGERS, WARNINGS, CAUTIONS and NOTES found throughout
this publication.
748418-C
July 2003
DANGER .
Highlights the presence of a hazard which will cause severe personal injury, death, or substantial
property damage if the warning is ignored.
WARNING .
Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not
strictly observed, could result in injury, death, or long-term health hazards of personnel.
CAUTION.
Highlights an operation or maintenance procedure, practice, condition, statement, etc. If not
strictly observed, could result in damage to or destruction of equipment, or loss of effectiveness.
NOTE
Highlights an essential operating procedure,
condition or statement.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-1
Instruction Manual
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Model NGA2000 Platform
SAFETY SUMMARY
If this equipment is used in a manner not specified in these instructions, protective systems may be impaired.
WARNING
AUTHORIZED PERSONNEL
To avoid explosion, loss of life, personal injury and damage to this equipment and on-site property,
all personnel authorized to install, operate and service the this equipment should be thoroughly
familiar with and strictly follow the instructions in this manual. SAVE THESE INSTRUCTIONS.
DANGER.
ELECTRICAL SHOCK HAZARD
Do not operate without doors and covers secure. Servicing requires access to live parts which can
cause death or serious injury. Refer servicing to qualified personnel. For safety and proper performance this instrument must be connected to a properly grounded three-wire source of power.
Platforms with two power supplies require disconnection of BOTH power cords to remove power
from the platform.
DANGER.
POSSIBLE EXPLOSION HAZARD
This equipment may contain modules used in the analysis of sample gases which may be flammable. If used for analysis of such gases, the module must be protected by a continuous dilution
purge system in accordance with Standard ANSI/NFPA 496-1993, Chapter 6.
WARNING.
HAND INJURY HAZARD
Do not place hands or fingers in Platform front handles when the front panel is open. Dropping
front panel while hand or fingers are inside either handle can cause serious injury.
WARNING.
PARTS INTEGRITY
Tampering or unauthorized substitution of components may adversely affect safety of this produc t.
Use only factory documented components for repair.
P-2 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model NGA2000 Platform
CAUTION.
STATIC-SENSITIVE COMPONENTS
Circuit boards in this instrument are static-sensitive. Take all static precautions when handling
them.
NOTE
If this Platform is stored in an environment whose ambient temperature is below 5°C (41°F), it must
be moved into a room temperature environment for 24 hours prior to powering up. If not, moisture
may form inside the LCD display.
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Instruction Manual
9
6
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DOCUMENTATION
The following NGA2000 Platform instruction materials are available. Contact Customer Service Center or th e local representative to order.
748418 Instruction Manual (this document)
COMPLIANCES
This product may carry approvals from several certifying agencies, including Factory Mutual and the Canadian
Standards Association (which is also an OSHA accredited, Nationally Recognized Testing Laboratory), for u s e in
non-hazardous, indoor locations.
Rosemount Analytical Inc. has satisfied all obligations from the European Legislation to harmonize the product
requirements in Europe.
This product complies with the standard level of NAMUR EMC. Recommendation (May 1993).
This product satisfies all obligations of all relevant standards of the EMC framework in Australia and New Zealand.
FM
APPROVED
NRTL /C
®
97-C219
NAMUR
N
P-4 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model NGA2000 Platform
GLOSSARY OF TERMS
30 A Bulk Power Supply
A power supply that is mounted in an enclosure capable of supplying power (+24 VDC @ 30 Amperes) to
up to ten Analyzer modules installed in the NGA2000 System.
AK
A serial interface protocol, popular in Europe in the automotive industry.
AMSN
Network variable name containing the module Serial number. This should be the same as the number
physically marked on the unit.
Alarm
An indication (normally) of an out-of-normal circumstance. This covers status indications, concentration
limit violation, internal limit violations or an internal problem. Alarms may be indicated to the user either
visually or through a relay contact closure.
Analyzer module
Self contained analysis modules that are designed to be installed into the NGA2000 System. One Analyzer
module can be installed into a Single Enclosure containing the Platform Module. Two Analyzer modules
can be installed into a Dual Enclosure. The simplest NGA2000 System consists of one Analyzer module.
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Backplane
The Controller Board, Power Supply Board, I/O Board(s) and Expansion Board(s) are plugged into the
Backplane
Basic Controls
In the NGA2000 menu system, refers to the controls appropriate for normal operator use. These include
such things as range changing, zeroing the Analyzer, and lighting the flame on a FID Analyzer.
Bench
The physical measuring device within the Analyzer module. It comes from the term Optical Bench, describing the specialized optical components used in the original Analyzers.
Binding
A process by which Analyzer modules and I/O modules are instructed with whom to communicate over the
LON. Once bound, variable updates from one module are automatically transferred to the other.
Calibrate
In Internal Combustion Exhaust Emissions monitoring, to zero, span and linearize an Analyzer. In other industries, to zero and span an Analyzer.
Calibration cycle
A procedure for making an Analyzer read sample gases correctly. It involves flowing zero gas, waiting for
stabilization, causing the Analyzer to adjust its zero offset, and then doing the same for one or more span
gases with adjustment of span factors as required.
CLD
Chemiluminescence Detector - a term for the type of Analyzer that measures nitrogen oxides by measuring
the light emitted when nitric oxide reacts with ozone.
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Control module
A Platform containing a Controller computer, a display and a keyboard. Used to view Analyzer data, and
configure and troubleshoot the entire NGA2000 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 NGA2000 Analyzers.
DIO
Digital input/output board, a special I/O Module that works with the platform to provide many digital I/O
lines.
Model NGA2000 Platform
Distribution Assembly
The Distribution Assembly consists of the Backplane and the card cages in the Platform Module that contain 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 a s 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 NGA2000 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.
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Model NGA2000 Platform
Info
Refers to the help screens in the menu system.
Inrush Current Limiting
It is sometimes necessary to limit the current drawn by a piece of electronics when it is first switched on.
Special devices are available to do this. The NGA2000 multi-module power supply uses them.
IR
Infra-red, also short for NDIR or Non-dispersive Infra-red Analyzer. Uses the absorption of infra-red energy
by certain gases as a means of measuring the concentration.
Linearization
The application of a mathematical formula to the Analyzer's signal with the intention of compensating for
the Analyzer's inherent non-linear response. Normally a fourth order polynomial is used.
LON
The LON is the Local Operating Network which is used to provide a communi cations link between the I/O
Module(s), Analyzer module(s) and the Controller Board in the Platform.
Main Menu
The top menu in the NGA2000 menu system. The "HOME" key in all other menus returns you to this.
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Menu
A screen full of information. Menus contain any or all of text, variables, function controls, or jumps to other
menus.
NDIR
Infra-red, also short for NDIR or Non-dispersive Infra-red Analyzer. Uses the absorption of infra-red energy
by certain gases as a means of measuring the concentration.
NGA2000
Next Generation Analyzer, a term describing Rosemount Analytical's digital Analyzer system.
Paramagnetism
The quality of certain materials, particularly oxygen, of being attracted to a magnetic field, like a very weak
form of iron. Most gases are diamagnetic, meaning that they are very weakly repelled by a magnetic field.
Parms
Parameters, information that either tells you how the Analyzer is operating, or how it has been configured.
Physics
Refers to the physical measurement components within the Analyzer. Also the study of the natural world.
Platform
Any combination of the NGA2000 case, the display and computer board, power supply, and I/O modules.
In general, it could be considered to be anything in the NGA2000 system other than the Analyzer modules.
Platform Module
A module that provides operator command and control via a local network to one or more Analyzer modules connected to the NGA2000 System.
PMD
Paramagnetic Detector, the name used for the NGA2000 paramagnetic oxygen Analyzer module.
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Polynomial
A mathematical term meaning an expression (a function of a variable) containing several terms, each of
which contains a power of the variable. A + B X x + C X (x X x) is a second order polynomial in x. A,B and
C are its zeroth, first and second coefficients. "X" means multiply, as usual.
Power Supply Board
The Power Supply Board that plugs into the front of the Backplane capable of supplying power (+24 VDC
@ 5 Amperes) to the platform components and just one Analyzer module mounted within the platform.
Primary Variable
The measured species concentration value from an Analyzer module.
Range
The bounds of concentration over which the Analyzer's reading is accurate, or possible. Traditionally this
is set by the Analyzer circuitry or its physics: in NGA2000, it is often merely a mathematical fiction provided
for operational convenience.
Response Factor
The relative response of the Analyzer to different gases to which it is sensitive. In the case of the FID this
refers to its response to various hydrocarbons, which is roughly in proportion to the number of carbon atoms contained in the gas' molecule.
Model NGA2000 Platform
Safety Failure
Indicates a failure of the Analyzer safety system, with resultant shut down of the Analyzer.
Secondary Variable
The current status data placed on the network by an Analyzer module. The includes sample flow, source
voltage and other diagnostic information.
Serial Number
A number assigned to the module at time of manufacture. It is stored in the network variable AMSN, and
marked on a label on the module enclosure.
Softkeys
The five function keys located below the front panel display. The menu function for each softkey is displayed directly above it and is controlled by the software.
Solenoid Valves
A gas switching element controlled by electrical current. It is used to control the flow of sample or calibration gas to an Analyzer.
Span
The range over which something works, or the act of standardizing the upper en d of the range.
System
A NGA2000 System consisting of one (or more) Analyzer modules, an optional Platform, one or more optional I/O Boards, an optional Expansion Board and an optional 30 A Bulk Power Supply.
System Integrator
An individual or organization who designs and builds analytical systems. Typically these are panels containing one or more Analyzers together with the sample system components and any other devices required for stand-alone operation.
P-8 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Instruction Manual
Model NGA2000 Platform
TAG
The name of a module. This may be defined by the user. It is used to identify the module both in the menu
system and through the PC interface. See also AMSN, or Serial number.
Technical Level
In the NGA2000 menu system, refers to the controls and configuration capability, and diagnostic information appropriate for Analyzer technicians.
THC
Total Hydrocarbons, a term for the total quantity of hydrocarbons present, regardless of their type.
Tweak
A slang term meaning to adjust. Used in the NGA2000 system specifically to describe a process of modifying the linearity of an NGA2000 Analyzer.
Validity
A concept used to describe a condition in which gas concentration values present on the Operator Interface
or output lines should be considered valid or invalid. The Analyzer module alerts the system that an error in
gas concentration is present. Causes include failure or lack of calibration, flame out in a FID, or a not-fromprocess gas applied by a sample control module.
748418-C
July 2003
VBA
Visual Basic for Applications - Microsoft's version of Visual Basic that they supply built into their main applications such as Excel or Word. It is similar but not identical to the stand-alone Visual Basic, and each variety has its own idiosyncrasies.
Warning
A form of alarm: a warning indicates one or more software configured limits on any network variable (other
than gas concentration) has been exceeded. Examples of these secon dary variables are flow rate and internal voltage. A warning indicates that the Analyzer reading may not be correct.
Zero
To make the Analyzer read zero on zero gas, by calibrating its offset. Also the operation that accomplishes
this.
Rosemount Analytical Inc. A Division of Emerson Process Management Preface P-9
Instruction Manual
748418-C
July 2003
Model NGA2000 Platform
P-10 Preface Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 Platform
SECTION 1
DESCRIPTION AND SPECIFICATIONS
1-1 THE NGA2000 CONCEPT - INTRODUCTION
NGA2000 stands for "Next Generation Analyzer". It describes a new concept in gas Analyzer design. The basis for this concept is the
division of the traditional Analyzer functions into
modular parts, connected by a digital communication link called LON.
Traditional Analyzers contain the "physics" - the
mechanism for detecting the gas in question and a means of controlling the operation of and
getting data from the physics. This normally
consists of a display with associated controls on
the front of the box, and "I/O" (input/output)
consisting of an analog or sometimes RS232
output, together with some relay contacts, on
the back. Power is supplied by an AC connection to the wall plug. Each Analyzer in a system
has to contain all of these components.
In the NGA2000 concept, the physics is separated from everything else into an "Analyzer
module", and a single "Control module" or "Platform" (so called) contains the control, display,
I/O and power supply components.
Communication between the Analyzer module
and the Control module is by means of a sophisticated digital communication system made
by the Echelon Corporation, called LONWORKS™ or LON™. There are many subtleties involved in such systems, but the NGA2000
and the LON hide almost all of these from the
user. A great deal of the sophistication of the
NGA2000 concept is involved in making the
communication system extremely simple to use
and in removing the complexity that, for example, your MIS administrator has to deal with
while managing the LAN (Local Area Network)
you probably have to use at work.
A typical NGA2000 system then consists of a
number of different types of Analyzer modules
connected to a single Platform, with some selection of I/O provided according to the particular needs of the user. Control of the entire
system takes place through the single Platform,
Instruction Manual
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and any I/O to the system goes through it. (It is
also possible for a computer to talk directly to
the Analyzer modules without the need of a
Platform, but that is outside the scope of this
document.)
1-2 THE DIGITAL COMMUNICATIONS SYSTEM –
INTRODUCTION
The NGA2000 uses a proprietary digital communication system made by Echelon Corporation, called LONWORKS™ or LON™ for short.
It is a sophisticated system that deals with most
of the subtleties required without user intervention or knowledge, but there are certain aspects
of it of which you should be aware.
The LON sends data in packets called "Variables". These are named, so that, for example,
the main output of an Analyzer is contained in a
variable called "PVA". Its range is contained in
a variable called "CRANGE". These variables
are emitted by the source and read by other
modules on the network that are interested in
them.
I/O Modules contain input variables of the same
name, and when the I/O is "bound" to an Analyzer module, the contents of the Analyzer's
PVA are automatically communicated to the
I/O's PVA, so that it now knows what the Analyzer's reading is. It can convert it to a 4-20mA
signal, or whatever it is configured to do. Obviously it is important that the I/O Module knows
which Analyzer to listen to!
The way we tell the I/O Module which Analyzer
it should pay attention to is to "bind" it to that
Analyzer. This process selects an Analyzer, selects an I/O Module, and ties them together so
that the set of Analyzer variables is bound to the
equivalent set of I/O variables, and the two act
as if they are one unit. The process itself is described below, and it is much easier in v2.3 than
in 2.2 and earlier versions. It is the only thing
you have to do to configure the LON.
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-1
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Model NGA2000 Platform
The other thing to realize is that the LON is extremely reliable. Any apparent problem with it
has always been proved to be from some obvious error, like a broken wire. It is possible to
overload it, and there is information in this and
the reference manual about this, but once a system has been setup the LON itself keeps working. If there is a problem, look for other things
besides the LON to be at fault.
1-3 PLATFORM OVERVIEW
This manual describes the control and I/O capabilities of the Platform part of an NGA2000
system.
NGA2000 system consists of three basic elements:
• Platform components
• Analyzer modules
• Input/Output (I/O) Modules
The Platform serves as a local operator interface for up to six (ten for V2.3 and higher) Analyzer modules. It consists of a group of
components that can be assembled in many different configurations depending on the user's
needs. It can be composed of any workable
collection of the following:
• Operator Interface - Front Panel,
Display and Keypad
• Power Input Module/ Power Supply
Board
• Platform Controller Computer
• One or more of a number of I/O
Modules
• Enclosure.
The Platform is also available in a dual version,
with two complete independent sets of electronics in one enclosure. Such dual versions act as
two separate Platforms and allow two independent Analyzer systems to be run from one
place. The front panel in this case consists of
two half panels directly mounted on the chassis
with no hinges.
The NGA2000 family of gas Analyzer modules
utilizes proven methodologies such as:
• Non-dispersive infrared (NDIR) to
measure gases such as carbon
monoxide (CO), carbon dioxide
(CO2) and sulfur dioxide (SO2)
• Paramagnetic (PMD) for measurement of oxygen
• Chemiluminescence (CLD for
measurement of nitrogen oxides
(NO and NO
• Flame ionization detection (FID) for
measurement of total hydrocarbons (THC).
• Further modules made in Europe
and described in their own manuals. These include the MLT (a
multi-analysis module) and the
NGA2000 II series.
These gas detectors are packaged in standard
sized modules that can be linked together via
the LON communications network. The modularity of NGA2000 allows for the use of multiple
interchangeable Analyzer modules with no
change in overall operational characteristics.
The I/O Modules provide signal input and output
capability outside of the NGA2000 communications network and are designed for easy installation in the Platform. I/O Module options
provide analog and digital signals, dry contact
closures for alarms and calibration valve sequencing, and accept remote signals for range
change and calibration initiation. These I/O
Modules contain a small computer that operates
autonomously providing I/O capability through
the LON connection without burdening the Analyzer module computers.
The SIO Board and DIO Board are extensions
to the Platform Controller Board. They plug into
the back of the Platform just as do the I/O Module boards, but they do not contain on board intelligence. The Platform will only accept one
SIO board but it is possible to add up to four
DIO boards - but only if the software in the Platform is v3.3, or higher. (At the time of writing,
this software is not available in the USA.)
)
X
1-2 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 Platform
Instruction Manual
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July 2003
The LON I/O Module boards allow for external
LON connections to the Platform.
Components that comprise the Platform and the
I/O Modules can be assembled in other configurations depending on user needs.
NOTE
The Platform controller board software must
be of a later major revision than any Analyzer module software. For example, a v2.2
Platform controller board will work with
v2.2.1 Analyzer modules, but not with v2.3
Analyzer modules. The ".1" after the v2.2 refers to a minor revision, which is compatible
with the v2.2 Platform controller board software.
NOTE
It is strongly recommended that you note the
actual software revisions that you have.
Service or support people will be able to diagnose any problem you may have more
easily if this information is immediately
available. The revision is marked on each
component, as well as noted in their Manufacturing data menus.
1-4 THE LON – THE NGA DIGITAL
COMMUNICATIONS NETWORK
The NGA2000 Digital Communications Network
operates over a bi-directional, peer-to-peer, twowire system at a rate of 78 kbps. Modules are
connected with RJ-45 modular connectors and
UL level 4, 100 Ohm LAN cable. This means
that there is a single wire connection between
all the modules on the network. It plugs into
each module using a plug much like standard
telephones use. (In fact the wiring is not critical,
plain wire connections will work well over reasonably short distances such as 100 feet.)
The network utilizes LONWORKS®, an open
control networking technology developed by the
Echelon Corporation. This uses the
LONTALK™ protocol. The combination of the
NGA2000 modular architecture with the robust
LONTALK™ protocol allows the capability to
“multi-drop” nodes to create a distributed network. This is to say that it is possible to connect
many devices onto the same network, and the
network protocol keeps everything working
without conflicts.
Every Analyzer modules or I/O Module node
that communicates to the network contains a
NEURON CHIP. This chip integrates three microprocessors, ROM, RAM, and EEPROM
memories, timers, multifunctional I/O, and the
network interface. From the user perspective
the inner complexities of the LON are thoroughly hidden from view and can safely be ignored.
The network is self-installing upon startup. The
Platform acts as a Network Manager, assigning
addresses and generating its own database
automatically. Manual intervention is only
needed to determine linkages (“binding”) between Analyzer modules and I/O Modules. This
means that all you have to do is to connect everything and power it up, and then tell it which I/O
Module is connected to which Analyzer. Once
this has been done once, it never needs to be
done again unless modules are exchanged or
added.
Each NGA2000 Analyzer module transmits over
two hundred pieces of data (called variables)
that are characteristic of its specific gas detection methodology. In addition to the main reading - the primary or process variable (gas
concentration), many other parameters and
pieces of diagnostic information are available.
This data includes:
• Manufacturing data such as serial
number and software revision
• Configuration setup for calibration
control, component temperature
and other alarm set points, and linearization parameters
• Operational status conditions such
as faults and calibration
• Secondary variables such as type
of gas measured, flow, temperature, and pressure readings
• Historical data such as known
good calibration values and factory
configuration settings
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-3
Instruction Manual
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Model NGA2000 Platform
1-5 PC INTERFACE
There are several ways of using the NGA2000
system with a PC. The Platform can support
RS232 or RS485 interfaces, using either AK or
Modbus as the protocol. Modbus is described
in detail in this manual, and AK is touched on
here and more extensively in the NGA2000
Reference manual.
It is also possible to setup a PC to communicate
directly with the LON. The easiest way is to use
the Rosemount Analytical DDE Server, together
with a set of suitable hardware. This is described briefly in the NGA2000 Reference manual, and in detail in the DDE Server manual.
1-6 INSTRUCTION MANUALS
Each module has its own instruction manual
that describes the functionality of that specific
module. The Rosemount Analytical part numbers for these manuals are as follows:
Pre-v2.2 Software
748270 - Platform & I/O
748271 - Analyzer module, PMD
748272 - Analyzer module, FID
748273 - Analyzer module, NDIR
748274 - Analyzer module, CLD
748275 - I/O Modules
748413 - Analyzer module, FR-PMD
748414 - Analyzer module, HFID
748415 - Analyzer module, I/O
748416 - Analyzer module, MCFID
748417 - Analyzer module, NDIR
748418 - Platform
748419 - Analyzer module, PMD2
748420 - Analyzer module, TO2
748421 - Analyzer module, Wet NOx
748422 - NGA2000 Reference Manual
748429 - DDE Server
The manuals for any given collection of modules
together constitute the single instruction manual
for that system. All manuals should be read and
understood before operation.
a. Platform Manual - Overview
This manual describes:
• The general characteristics and specifi-
cations of Platform components
• Installation guidelines
• Display and keypad functions
• General operation procedures
Software v2.2
748329 - Platform Components
748330 - Analyzer module, PMD
748331 - Analyzer module, FID
748332 - Analyzer module, NDIR
748333 - Analyzer module, CLD
748313 - Analyzer module, Wet NOx
748297 - Analyzer module, Heated FID
748356 - Analyzer module, MCFID
748384 - NGA2000 Reference Manual
748368 - DDE Server Manual
Software v3.3:
748410 - Analyzer module, CLD
748411 - Analyzer module, FID
748412 - Analyzer module, FID2
1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
• I/O boards available
• I/O Module specifications
• Interconnections with internal and ex-
ternal devices
• Display menus and keypad functions
that are I/O specific
• Recommended replacement parts.
b. Analyzer module Manuals - Overview
The Analyzer module manuals describe:
• Theory of technology and typical
applications
Model NGA2000 Platform
• Module specifications
• Gas connection installation
• Sample conditioning specifications
• Start-up procedures
• Calibration routines
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1-7 PLATFORM COMPONENTS
a. Operator Interface
The Front Panel Display. is a 128- by
240-pixel liquid crystal graphics display with
cold cathode back lighting. During normal
analysis operation (Single Analyzer measurement mode), the Display indicates:
• Operational functions, including Ana-
lyzer-specific displays and keypad
procedures
• Troubleshooting and maintenance in-
formation, and
• Recommended replacement parts.
c. NGA2000 Reference Manual - Overview
The NGA2000 Reference Manual provides
a detailed discussion of the inner workings
of the NGA2000 software and its application
to the NGA2000 Analyzers. It includes:
• Discussion of typical calibration issues
• In depth discussion of network issues
• Troubleshooting information
• Analyzer variable reference
Analyzer variable reference refers to the
technical description of the pieces of data "variables" - available over the LON from
each of the Analyzer modules.
• The current concentration of the com-
ponent of interest,
• A single-line, horizontal bar graph indi-
cating the component concentration in
percent of fullscale format,
• Four secondary parameters (e.g., Sam-
ple flow), selectable from either the
Analyzer module or its associated I/O
Modules.
• Current functions for the five "softkeys"
located below the display.
It may also indicate the following data for
each of up to five Analyzers in the multiple
Analyzer measurement mode (v2.3 software, four Analyzers for v2.2):
• The current concentration of the com-
ponent of interest,
• The name of the gas measured,
• The Analyzer module TAG,
• A single-line, horizontal bar graph indi-
cating the component concentration in
percent of fullscale format
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-5
Instruction Manual
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Model NGA2000 Platform
NDIR – CO2
19.4 ppm CO2
0 Range: 2 50
RAW SIGNAL: 556320
PRESSURE: 14.7 psia
CASE TEMPERATUE: 45.3 C
NOISE LEVEL: 0.811 ppm
DISPLAY
PARMS MENU NEXT INFO
Figure 1-1. Single Analyzer Display
NDIR – CO2
19.4
9.1
NDIR-CO2
ppm CO2
FID
ppm C1
0.
0
SELECT
Figure 1-2. Multiple Analyzer Display (Showing Two Analyzers)
PARMS TAGS OFF INFO
It is possible to page through multiple Analyzer measurement screens if more than
five Analyzers are present - with v2.3 software. Select an Analyzer with the arrow
keys or SELECT softkey to drop to the Single Analyzer display screen for that Analyzer.
Arrow (Cursor) Keys
(←,↑,→,↓) multi-functional; a fundamental
function is scrolling input data.
Enter Key
(↵) executes menu items and data input by
the user.
Ten push-button keys provide the user
complete access to the functionality of
NGA2000. They are:
b. Platform Controller Board
The Controller Circuit Board acts as a network manager and provides user interaction
Softkeys
The five keys below the display dependent
with NGA2000 components through the
Display and Keypad.
for their function on the Display labels directly above them.
v2.3 and higher Controller boards come
with additional memory and can support up
to 10 Analyzer modules with their associated I/O Modules. This board can be re-
1-6 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 Platform
Instruction Manual
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July 2003
programmed locally through a PC serial port
if desired to upgrade its software.
If the Platform Controller Board malfunctions, the Operator Interface will be affected, but the Analyzer module will
continue to produce an accurate Primary
Variable and I/O Modules can still send accurate data to external recording devices. If
the controller loses contact with an Analyzer, it indicates this fact with the phrase
“No Data” replacing the normal Analyzer
reading.
c. Power Input Module/Power Supply
Power can be supplied to all NGA2000
components through the Power Input Module, which plugs into the Backplane. External line voltage (85 to 264 VAC, 50 to 60
Hz) is supplied to the Power Input Module
and conditioned for usage by other
NGA2000 components. See Figure 1-3 on
page 1-8 and Figure 1-10 on page 1-16.
The Power Supply Board also plugs into the
Backplane and conditions incoming power
for usage by all modules (only one Analyzer
module). The Power Supply Board provides
+24 VDC at 5A.
Alternatively, the user may supply regulated
24 VDC directly to the Platform through the
Power Input Module. If multiple Analyzer
modules are used, a larger 30 A Bulk Power
Supply is required to power the system.
If the user initially applies AC power and
then applies DC power, the DC circuitry assumes control, and all components may
continue operating without interruption but
may reset depending on the current draw. If
the user initially applies DC power, application of AC power will have no effect. DC
power will remain in control. If both AC and
DC power have been applied, removal of
DC power will reset the system, and AC circuitry will then assume control.
WARNING.
Improper Connection
The internal LON connection is for use with
internally mounted and powered Analyzers
only. Using this connection for external
Analyzers or LON components could result
in short-circuiting the 24V Power Supply
Module through the cable, with resultant
damage. Use the LON I/O board for external
Analyzer module connections (see Section
1-10c on page 1-21).
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-7
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Model NGA2000 Platform
LFM 01
!
POWER
230 V
56/60 Hz
F1/F2= T 1.25A
115 V
50/60 Hz
F1/F2= T 2.5 A
Unit
Extraction
Handle
24V DC IN
Figure 1-3. Rear View Of Power Input Module
Fan
115/230 VAC
Plug Socket
Fuseholder Door
(closed)
24 VDC
Plug Socket
d. Distribution Assembly Components
The Backplane is the backbone of much of
the NGA2000 Series' modularity. The Controller Board, Power Input Module, Power
Supply and I/O Modules all plug into the
Backplane. Identifying ground pins allow I/O
Modules to identify their slot position.
NOTE
Earlier I/O Modules did not support slot identification. If so they will indicate slot 0 no
matter where they are placed.
1-8 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 Platform
1-8 SOFTWARE/DISPLAYS
The User interface is an extensive menu structure. Three types of screens may appear on the
Front Panel Display:
NDIR – CO2
19.4 ppm CO2
0 Range: 2 50
RAW SIGNAL: 556320
PRESSURE: 14.7 psia
CASE TEMPERATUE: 45.3 C
NOISE LEVEL: 0.811 ppm
DISPLAY
PARMS MENU NEXT INFO
Instruction Manual
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• Measurement (Single or multiple
Analyzer displays)
• Menus
• Info (Help)
Figure 1-4. Measurement Display
The Measurement screen is the actual operational screen in which the measured component
concentration is shown. Up to four (five with
v2.3 software and higher) measurements can
be shown on the multiple Analyzer measurement screen at once. If an Analyzer module has
lost communication with the network, the screen
will display "No Data."
From the Single Analyzer measurement screen
you can either select the menus by pressing the
“MENUS” softkey (or right arrow key), or you
can select a couple of screens that provide essential information about the Analyzer. Access
these by pressing the “PARMS” (short for parameters) softkey.
The Menu screens include all of the data and
functions necessary to interrogate and operate
the Analyzer and I/O Modules. The selected
menu line is highlighted in inverse video. Use
the ↑ and ↓ keys to highlight the desired menu
line. Press the Enter (↵) key, and depending on
the item selected, one of the following will occur:
• If the highlighted item ends with a colon
and a value on the right side of the display
screen, the item will become editable.
• If the highlighted item ends with three dots
(...), Another menu will appear.
• If the line ends with an exclamation point
(!) it is a function (information) line and is
not editable or executable, nothing will occur, and in fact you will not be able to select it.
• If the first of the above possibilities occurs,
only the right-hand portion of the menu
line will then be highlighted. Use the ↑ and
↓ keys to scroll the data. Under certain
circumstances, the cursor is movable with
the → and ← keys. This allows you to edit
specific characters within a numerical or
string (alphabetic) variable. Press → to
start individual character editing, and then
→ or ← to select the character to edit:
edit it with the ↑ or ↓ keys. Press Enter
(↵) when you are done, or press the ESCAPE softkey to abort the editing and return to the original value.
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-9
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To escape from a menu, either press the left arrow key (←), the ESCAPE soft key, or to jump
all the way back to the Main menu, press the
HOME softkey.
Help screens contain comprehensive, contextsensitive information about all functions. Press
the softkey labeled INFO once and receive data
concerning the current screen. Press INFO
twice and receive information about the overall
system.
Each menu screen has at least one help screen.
The user can move directly from one help
screen to another through an interrelated structure of functional titles.
1-9 MULTIPLE MODULE COMPONENTS AND
SYSTEM INTEGRATION
The Rosemount Analytical NGA2000 architecture provides significant system integration capabilities.
The compact 5.25" height and component
modularity allow for space efficient mounting,
thus decreasing the required panel or rack
space required by conventional Analyzers. The
Analyzer modules may be mounted virtually
anywhere inside a panel; they can be rack
mounted, floor mounted, installed inside the
Platform, or even externally located.
Since a single Platform can accommodate up to
ten Analyzer modules and up to five I/O Mod-
ules, the total number of "Nodes" allowed in any
one Platform group is fifteen. This combination
of Nodes may consist of any number of Analyzer modules and I/O Modules which total fifteen or less. Should additional I/O Modules be
required, these may be housed in an ancillary
Analyzer enclosure. Additionally, some Analyzer modules, such as the MCFID (Multi Component Flame Ionization Detector), or MLT
(Multi Method Multi Component) Analyzer modules, actually provide discrete analysis of more
than a single component and thus are considered, by the Platform, to be more than a single
Analyzer. Once a "Node Group" has been configured it may be networked with additional
Node Groups by means of a Router Assembly
(see Figure 1-9 on page 1-15) which provides a
discrete address for that Node Group and isolates it from other Node Groups.
Individual Analyzer modules require 24 VDC
power. As shown in Figure 1-8 on page 1-14,
this power may be provided by individual power
supplies located in the Platform or by the 30 A
Bulk Power Supply which can provide up to 30
amps of 24 VDC power. The 30 A Bulk Power
Supply can provide power for up to 10
NGA2000 components.
Table 1-1 on page 1-11 may be used to calculate the total number of Analyzer modules and
I/O Modules which may be supported by a single Platform (Node count ≤ 15), and the total
power requirements for any single Node Group
(30 A Bulk Power Supply ≤ 30 Amps).
1-10 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 Platform
Instruction Manual
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NDIR PMD FID CLD HFID WCLD MCFID MLT1 PLATFORM
Node Count 1 1 1 1 1 1 1 - 53 1 - 5
Average Power2 2.4A 2.4A 3.4A 3.5A 3.9A 3.5A 4.0A 2-4A 2.0A
Average Power2 3.1A 3.0A 3.7A 4.2A 4.8A 3.7A 4.9A 3A - 5A 2.5A
1
Calculate MLT power consumption as follows:
MLT1 ≤3.0 A
MLT2 ≤3.0 A
MLT3 (without internal power supply) ≤5.0 A
ply.
fied.
MLT4 ≤5.0 A.
2
Total power consumed may not exceed 30 Amps for interconnection to any single 30 A Bulk Power Sup-
3
MCFID must be counted as one to five nodes depending upon the number of components measured.
4
MLT must be counted as one to five nodes depending upon the number of measurement channels speci-
4
1
Table 1-1. Node Count And Power Consumption For NGA2000 System Integration
The following accessories can be used to design a NGA2000 system
• DUAL ANALYZER ENCLOSURE
used to house two Analyzer modules for either standard or extended lengths
• SINGLE ANALYZER ENCLO-
SURE used to house one Analyzer
module and up to 5 I/O Modules.
• DUAL PLATFORM ENCLOSURE
to allow control of two independent
systems from one location
• 5 A POWER INPUT MODULE to
be used in the single Analyzer
compartment enclosure to power
the housed Analyzer module
• 30 A BULK POWER SUPPLY
which is capable of providing
power for up to 10 NGA2000 components
The number of I/O Modules that can be housed
in a Platform or single Analyzer enclosure is limited to five.
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-11
Instruction Manual
748418-C
July 2003
Model NGA2000 Platform
Figure 1-5. Dual Analyzer Enclosure
LON Cables
Figure 1-6. Dual Analyzer Enclosure With Two Analyzers (front view, cover removed)
24 VDC power connection
LON Cables
24 VDC power connection
Connection to third Analyzer
Figure 1-7. Single Analyzer Enclosure With One Analyzer (front view, cover removed)
1-12 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
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