giving customers what they want: choices and flexibility ... 2011 nmea 2000 presentation.pdf ·...

NMEA 2000 Giving Customers What They Want:

Choices and Flexibility

They Deserve Today & Tomorrow

IBEX 2011 Louisville, KY

Property of NMEA Do not copy or redistributed with NMEA permission

“Open” Marine Networking Interface Standard

• NMEA 2000 Standards Committee established in 1994

• Multi-national marine electronics committee under NMEA guidance

• 5 years in development

• 2001 commercially viable in U.S.

• Adopted as the International Standard (IEC 61162-3)

NMEA 2000 is…


Members • Academia - Kansas and Oklahoma State,

• Networking and Computer Industry

• Marine Electronic Companies,

• U.S. Coast Guard Research & Development

Beta tested 18 months under NMEA guidance • U.S. Coast Guard • Marine Electronics Manufacturers

• Furuno USA, JRC, Litton Marine, Navionics, Northstar, Raymarine, Simrad, Teleflex, Trimble, Wood Freeman

• CAN Manufacturers • Kvaser, Vector Can Tech

Brief History

Today more than 100 companies worldwide

Europe, Asia, Australia New Zealand, U.S.

All categories of electronics and electrical are represented


• Main Document

• Appendix A (Application Layer)

• Appendix B (Database of Messages)

• Appendix C Certification Criteria and Test Methods)

• Appendix D (Application Notes)

• Appendix E ISO 11783-3 Data Link Layer

• Appendix F ISO 11783-5 Network Management

• Appendix G ISO 11898 Controller Area Network

8 Documents Comprise the Standard


Some Key Requirements

• Proven, robust, safe

• Message prioritization (bit by bit arbitration)

• Scalable (252 addresses)

• Data creation simplified

• Certification testing

• Standard cables and connectors

• 250 Kbits/sec (50 times faster than 0183)

• Controller Area Network (CAN)


Cables / Connectors Open Devicenet Vendor Association (ODVA)

• FT 4 flame rating specifications • Meets UL Class 2, UL 1677 oil resistance and NEC CL2 • IP67 rated, 65 lb pull strength • Key screw-on connectors • Accepted by Lloyd’s Register • Meets U.S.C.G. regulated vessel-wiring requirements • Meets U.S.C.G. regulated vessel safety concerns

Standardized Cables & Connectors


Power Tees Tee Connectors

Terminating Resistors-2

Backbone & Drop Cables

Physical Network Parts


Name Pair Color Shield Drain Bare NET-L Data Blue NET-H Data White NET-C Power - Black NET-S Power + Red

The Cabling


Shield / Drain NET-S Power +

NET-C Power -

NET-H Data

NET-L Data

The Cabling

Foil Shield

Braid Shield

BLUE NET-L Data (24 AWG)

WHITE NET-H Data (24 AWG)

BLACK – NET-C (22 AWG)

RED+ NET-S (22 AWG)

Alignment Key

Shield / Drain (22 AWG)

Connector Cut Away


• Connects each individual device to the backbone

TEE

MALE Backbone

Connection

FEMALE Backbone

Connection


FEMALE Drop

Connection

• Required at each end of the network backbone • 120 Ohm ¼ watt resistor • Prevents and limits signal reflection

Terminating Resistors


• Supplies Power to the NMEA 2000 backbone • 9-16 VDC

Power Adapters



A Simple System

• Add and subtract products without network interruption • NMEA 2000 single cable replaces wiring up to 50

NMEA 0183 interconnections • Boat builder testimony (26 meter pleasure craft)

• 1000 pounds less weight

• 2 weeks faster to market


Some Key Benefits

In-Line Terminating

Resistor Location

• Long cable runs up the mast • Most masts are greater than 6

meters • In-Line terminating resistors

are used • Terminates the backbone at

the top of the mast


In-Line Terminating

Resistor

Terminating Resistor is

molded into the manufacturer’s

connector

NMEA 2000


• For use when cables need to be cut (snaking etc.) • Provides a waterproof connection with strain relief

Field Installable Connectors


• All NMEA 2000 products are certified

• Behave in a known and predictable manner • Ensures safe and accurate communication

• Over a 100 tests validated by NMEA • Expose any flaws or weaknesses in the protocol

implementation • Listing of certified products – www.nmea.org

• Beware of “Compatible” or “Works With”


Product Certification

http://www.nmea.org/

NMEA 2000 Network Messages


www.nmea.org

NMEA 2000 Network Messages


http://www.nmea.org/

NMEA 0183 Wind Data

NMEA 2000 Certified

0183 Gateway

Connecting to Other Data Sources


NMEA 2000 Certified

USB Gateway


Connecting to Other Data Sources

NMEA 2000 Certified

0183 Gateway

NMEA 2000 GPS information is sent to

VHF radio for DSC broadcast

NMEA 2000

Connecting to

Other Data Sources Property of NMEA Do not copy or redistributed with NMEA permission

Engine Controller 2 Engine

Controller 1

NMEA 2000

NMEA 2000 Cable/Connector


Engine Interface Units

NMEA 2000

NMEA 2000 Cable/Connector


Traditional


NMEA 2000


Traditional


NMEA 2000


Traditional NMEA 2000


LIGHTSTBD NAVIGATION

MAST NAVIGATIONLIGHT

MAIN DC CIRCUIT

LOWER HELM

UPPER HELM SWITCH PANEL

SWITCH PANEL

BREAKER PANEL

BATTERY BANKTRIM TABS

WINDLASS

Traditional


NMEA 2000

SCI

SCI

OI MODULEF/BRIDGE

OI MODULEAFT

NMEA 2000 BACK BONE

OI

OI

TRIM TABS

WINDLASS

OI MODULEFWD CBN

BATTERY BANK

UPPER HELM

LOWER HELMSCI MODULE

SCI MODULE



LIGHTSTBD NAVIGATION


MAIN DC CIRCUIT

LOWER HELM

UPPER HELM SWITCH PANEL

SWITCH PANEL

BREAKER PANEL

BATTERY BANKTRIM TABS

WINDLASS

Traditional


NMEA 2000

SCI

SCI

OI MODULEF/BRIDGE

OI MODULEAFT

NMEA 2000 BACK BONE

OI

OI

TRIM TABS

WINDLASS

OI MODULEFWD CBN

BATTERY BANK

UPPER HELM

LOWER HELMSCI MODULE

SCI MODULE



NMEA 2000 Traditional


• Future-Proof • Alarms and Faults – A set of tools for a suite of alarms and

faults. • Power Generation – Status and control of power generation

devices, such as generators, alternators, inverters, hybrids, and shore power on ships.

• Electrical Distribution – Delivery of power on vessels; identifying loads, load sharing, and virtual breakers

• Galileo • E-Navigation • AIS Updates

NMEA 2000


• Increasing Your Profitability • Simple Installation • Less Weight • Boosts Employee Productivity

• Eliminates Hidden Costs / Employee Training /Error Reduction

• Faster to Market • One Backbone Replaces the “Old” Standard Harness • Reduction in Parts Inventory and Warehousing Costs

NMEA 2000


• Customers Want Choices • Customization and Integration of Products

• NMEA 2000 Certified Products Provide Choices

• No Need to be Locked in with One Vendor

• One Manufacturer Does Not Need to “Own” the Boat

• Give Customers the Best of Class


Give Customers What They Want

Questions?


NMEA 2000 Gives Customers the Choice and the Flexibility They Deserve Today & Tomorrow