Fieldbus Tutorial - Part 11 HSE Fieldbus

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Emerson Confidential
27-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.

27-Jun-01, Slide 3
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

27-Jun-01, Slide 5
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

27-Jun-01, Slide 6
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.

27-Jun-01, Slide 7
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

27-Jun-01, Slide 8
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

27-Jun-01, Slide 9
High Speed Ethernet
TCP/IP
ETHERNET
HSE
Application
Protocol
User Layer:
Function
Blocks

27-Jun-01, Slide 10
High Speed Ethernet
TCP/IP
ETHERNET
HSE
Application
Protocol
User Layer:
Function
Blocks
Commercial,
Off The Shelf
Ethernet Equipment

27-Jun-01, Slide 11
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

27-Jun-01, Slide 12
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

27-Jun-01, Slide 13
HSE system components
A representative HSE system has the following
components:
– Field Devices
– Linking Devices
– Interface Devices
– Host Devices for Operator display
– Host Devices for Configuration
The system also needs at least one Time server
and a DHCP Server.

27-Jun-01, Slide 14
HSE Devices Incorporate Standard
Ethernet Technology
HSE Access Agent
Redundant
High Speed
Ethernet
TCP/IP
Net/Sys
Mgt
Function Block AP
VCR VCR VCR VCR
HSE Field Device
ETHERNET

27-Jun-01, Slide 15
HSE Devices Incorporate Standard
Ethernet Technology
Redundant High
Speed
Ethernet
HSE Field Device Access Agent
H1 H1
Chan. o o o o
1
Chan.
N
TCP/IP
H1 Bridge
Net/Sys
Mgt
VCR
ETHERNET
Linking Device
Fieldbus H1Fieldbus H1

27-Jun-01, Slide 16
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!

27-Jun-01, Slide 17
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

27-Jun-01, Slide 18
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

27-Jun-01, Slide 19
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

27-Jun-01, Slide 20
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.

27-Jun-01, Slide 21
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

27-Jun-01, Slide 22
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+

27-Jun-01, Slide 23
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

27-Jun-01, Slide 24
Tree Topology
A Device May Be Connected
and Disconnected Without
Impacting Other Devices
Trunk
Spur
Linking Device

27-Jun-01, Slide 25
Flexible Function Block Capability
in HSE Devices
IEC 61131

27-Jun-01, Slide 26
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

27-Jun-01, Slide 27
Ethernet Wiring
Hub
Hub
Hub
Max Length
between points =
100 m
Power
Supply
2 wire
4 wire
Hub

27-Jun-01, Slide 28
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

27-Jun-01, Slide 29
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 485
Plant Historian
1
2
3
4
Web Browser
for Sensor
configuration
Ethernet

27-Jun-01, Slide 30
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

27-Jun-01, Slide 31
Full Scale Fieldbus Architecture
Classic & HART I/O
H1
As-I/DeviceNet/DP
HSE (High Speed Ethernet)
HSE Field
Device
HSE Controllers
H1 Field Device
Field Mounted
Linking Device
Host Device
PLC
Fieldbus H1
H1
Firewall
Web Browser

27-Jun-01, Slide 32
61131
Programming
Tool
Device.
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

27-Jun-01, Slide 33
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.

Fieldbus Tutorial - Part 11 HSE Fieldbus

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