Fieldbus Tutorial - Part 11 HSE Fieldbus

HSE Fieldbus

[File Name or Event]Emerson Confidential27-Jun-01, Slide 2

High Speed Ethernet

The seamless connection of Fieldbus H1 to High Speed Ethernet has been addressed by the Fieldbus Foundation

The Fieldbus User and application layer requirements are incorporated in the High Speed Ethernet specification.


Why High Speed Fieldbus?

Fieldbus

CMMSERP

Process

Control

System

Safety Systems, Electrical

Equipment, Monitoring of Rotating

Equipment and Complex Analyzers

Multiple or Long

Fieldbus Segments

High Speed

Interfaces


DCS

A Plant with Fieldbus

High Speed Fieldbus (100 Mbits/s)*

Low Speed Fieldbus (31.25 Kbits/s)

*Fast Ethernet

Maintenance

A Plant with Fieldbus

Interoperable devices


Why Ethernet?

•Bandwidth (10 Mb/s or 100 Mb/s)

•Broad commercial availability of

interfaces and components

•Seamless connection with upper networks

in the plant and with complex devices

•Enables use of thin clients

•Use of Web technology.


Ethernet: several Application Layer Protocols

Protocols

Networks

Application

Transport

Network

Physical +

Data LinkETHERNET

TCP

HSE

UDP

IP

TELNET SMTPFDP

Layers

(OSI names)

TCP - Transmission Control Protocol - Reliable Connection oriented protocol

UDP - User Datagram Protocol - Unreliable connectionless protocol


What is High Speed Ethernet (HSE)?

– It is the Fieldbus Foundation framework for interconnecting field devices to each other and to hosts using standard Information Technology (IT).

–Devices and hosts can be located anywhere on a TCP/IP network.

– Integration into a control system will depend on system awareness of FF function block/architecture


High Speed Ethernet

TCP/IP

ETHERNET

HSE

Application

Protocol

User Layer:

Function

Blocks


High Speed Ethernet

TCP/IP

ETHERNET

HSE

Application

Protocol

User Layer:

Function

Blocks

Commercial,

Off The Shelf

Ethernet Equipment


High Speed Ethernet

TCP/IP

ETHERNET

HSE

Application

Protocol

User Layer:

Function

Blocks

New Protocol Specs

for HSE•System Architecture Addendum

•System Management Addendum

•Network Management Addendum

•Data Link Addendum - Bridging

•Ethernet Presence

•Field Device Access Agent

•Redundancy


High Speed Ethernet

TCP/IP

ETHERNET

HSE

Application

Protocol

User Layer:

Function

Blocks

Additional Function Block

Specifications for HSE•Flexible Function Block (MIO)

•Flexible Function Block (61131 )

•FFB Application Guide

•Multi - Variable Optimization


HSE system components

A representative HSE system has the followingcomponents:

– Field Devices

– Linking Devices

– Interface Devices

– Host Devices for Operator display

– Host Devices for Configuration

The system also needs at least one Time serverand a DHCP Server.


HSE Devices Incorporate Standard Ethernet Technology

HSE Access Agent

Redundant

High Speed

Ethernet

TCP/IP

Net/Sys

MgtFunction Block AP

VCR VCR VCR VCR

HSE Field Device

ETHERNET


HSE Devices Incorporate Standard Ethernet Technology

Redundant High

Speed

Ethernet

HSE Field Device Access Agent

H1 H1

Chan. o o o o

1Chan.

N

TCP/IP

H1 Bridge

Net/Sys

Mgt

VCR

ETHERNET

Linking Device

Fieldbus H1Fieldbus H1


Field Hardened Link Device with IS Barriers

Bridge / Function Blocks

PS PS PS PS

SB SB SB SB

Power

Supply

Chan.1 Chan.2 Chan.3 Chan.4

H1/HSE

Fiber OpticFiber Optic

H1

SB SB

Hazardous

Area

High Speed Ethernet

Field Hardened!


HSE Fieldbus Architecture

Conventional and

H1 Field Devices

H1

As-I/DeviceNet/DP/etc

HSE (High Speed Ethernet)

HSE Field Device Linking

Device

H1 Field Devices

Host Devices

( FF Function Block Aware)

PLC

I/O Gateway

Analyzers


HSE Physical Layout

Conventional and

H1 Field Devices

As-I/DeviceNet/DP/etc

HSE Field Device

Host Devices

PLC

I/O Gateway

Analyzers

H1

Linking Device

H1 Field Devices

Router

Other TCP/IP Networks

Commercial,

Off The Shelf

(COTS)

Ethernet Equipment


Alert

Function

Block

Trend

Object

Function

Block

Alert

Function

Block

Trend

Object

Function

Block

Function Block Application In HSE Devices

H1 Fieldbus DeviceHSE Device

Linking Device

Alert

Function

Block

Trend

Object

Function

Block

HSE

Host Device


Engineering a HSE Installation

Ethernet provides a common method of

connecting to a HSE network.

•Control segments may be constructed

from HSE devices and standard

switch/hub technology.

•Any type of Ethernet (wire, fiber,

radio) can be used, as long as it can be

connected to a standard speed-sensing

switch.


H1

H1 Field Devices

Fiber is Used if Devices Are Spread over a large area or when EMI is a problem

Conventional and

H1 Field Devices

HSE

Host Devices

PLC Switch

100 Meters on

Twisted Pair

2,000 Meters

on Fiber Optic


Ethernet Wiring

Name Cable Max Segment Nodes/ Segment

10Base5 Thick Coax 500 m 100

10Base2 Thin Coax 200 m 30

10Base-T Twisted pair 100 m 1024

10Base-F Fiber 2000 m 1024

Physical Media

TX+TX-

RX+

RX-

RJ45

Signal Power+


May be part of link

device hardware

Wiring H1 Devices to a Linking Device

H1

Power

Supply

Terminator Terminator

Spur

Linking Device

Power

Cond.

HSE


Tree Topology

A Device May Be Connected and Disconnected WithoutImpacting Other Devices

Trunk

Spur

Linking Device


Flexible Function Block Capability in HSE Devices

IEC 61131


A plant in the future

HMI/

Overall

Configurator

H1 Low Speed FF H1 Low Speed FF

Linking Dev.Linking Dev.

Remote I/O

Fast Ethernet

(Fiber)

Controller

Field

Controlled

Area


Ethernet Wiring

Hub

Hub

Hub

Max Length

between points =

100 m

Power

Supply

2 wire4 wire

Hub


Alert

Function

Block

Trend

Object

Function

Block

Alert

Function

Block

Trend

Object

Function

Block

Function Block Application In HSE Devices

H1 Fieldbus DeviceHSE Device

Linking Device

Alert

Function

Block

Trend

Object

Function

Block

HSE

Host Device


RMD

Multiplexer replacement

– Up to 512 pts per Module

– Multiple Modules(up to 32 per RS485 segment)

Application for Remote Data Monitoring

H1

Legacy DCS

Modbus

RS 485Plant Historian

12

34

Web Browser

for Sensor configuration

Ethernet


Link Device with Wireless Connection for Maintenance

Fieldbus H1 Fieldbus H1

Fieldbus H1 Fieldbus H1

Link Device With Web Server

High

Speed

Ethernet

Web

Browser

Web

Browser


Full Scale Fieldbus Architecture

Classic & HART I/O

H1As-I/DeviceNet/DP

HSE (High Speed Ethernet)

HSE Field Device

HSE Controllers

H1 Field Device

Field Mounted

Linking Device

Host Device

PLC

Fieldbus H1H1

Firewall

Web Browser


61131

Programming

ToolDevice.

ddl

Tokenizer

Symbol.

txt

Device.

ffo

FF Config

Tool

Each FFB has a Device Description and Capabilities

File Generated by the Programming Tool

Flexible Function Block

Capability.

cff

Config.

files


What To Look For in Purchasing HSE

Device Class 41-45 Specify Functionality(s) i.e. Field Device, Linking Device, Interface or Host Device. All HSE Devices must qualify as one or more of these classes.

Device Classes 46-49 Specifies Device Networking Capability e.g. redundancy, time handling, IP address handling. All HSE Devices must be characterized by these classes.