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Basic Foundation field bus communication

This document summarizes a presentation about Fieldbus Foundation technology given on February 28, 2003 in Singapore. The presentation introduces Fieldbus Foundation (FF) and how it works, including distributed control using function blocks, deterministic scheduling, and device description technology. It also discusses benefits such as reduced wiring and expanded process information. High Speed Ethernet is presented as an extension of FF that provides distributed control over a high-speed Ethernet backbone.

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© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic FOUNDATION fieldbus How It Works and Why It Works! An Introduction
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Agenda Refreshments and Introductions 08:00 – 08:30 Demonstrations 10:30 – 12:30 Break 10:00 – 10:30 Presentation 08:30 – 10:00
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Topics • Introduction to the Technology • How it Works! – Distributed Controls – Device Description Technology – HSE Redundancy • Testing and Registration – H1 Devices – Linking Devices – Host Systems
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Introduction
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic P L F Automation and Display Systems Fieldbus Process Plant H1 Fieldbus Fieldbus - a digital, two-way multi-drop communication link among intelligent measurement and control devices, and automation and display systems.
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic REDUCED WIRING AND INSTALLATION H1 Fieldbus Benefits Traditional 4-20 mA wiring, one IS barrier, one pair for each device 4-20 mA IS IS IS IS One IS barrier, one pair for many devices IS Fieldbus
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic EXPANDED VIEW OF PROCESS H1 Fieldbus Benefits IS IS IS IS 4-20 mA Fieldbus IS
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 Fieldbus Benefits MORE INFORMATION FOR ENGINEERING AND MAINTENANCE IS IS IS IS One Process Value 4-20 mA IS Fieldbus Mode, Value, Status, Alarms, Trends
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic 4-20 mA PID AO AI In today’s systems, control functions all reside in central controllers. H1 Fieldbus Benefits DISTRIBUTION OF FUNCTIONS Fieldbus can be used in the same way, but fieldbus also enables control and I/O functions to be distributed to field instruments. AI IS Fieldbus AO PID PID
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic High Speed Ethernet HSE uses the same User Layer technology as H1 – Function Blocks – Device Descriptions HSE uses the Ethernet/Internet for Communications – Standard IEEE Physical Layer – Standard Internet Protocols for the “Stack” – Commercial Off The Shelf (COTS) Network Equipment
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 P L Plant P L Plant P L Plant H1 H1 P L Plant H1 100 Meters on Twisted Pair 2000 Meters on Fiber HSE CLIENT COTS 100 Mbit/s Switch Linking Device Linking Device HSE Devices High Speed Ethernet High Speed Ethernet High Speed Ethernet Ethernet Field Device High Speed Ethernet
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic High Speed Ethernet Benefits HSE is Designed for High Performance Control • Distributed Control on a COTS 100 Megabit per Second Backbone • Same Function Blocks and Device Description Technology as H1 • Function Block Synchronization on the Backbone • System Time Synchronization - Master Clock (e.g. GPS) to HSE to H1 • New Flexible Function Blocks for Hybrid/Batch/PLC/Remote I/O Applications • Supports High Speed Data Generators/Users (e.g. Analyzers, Controllers) • Uses Standard Internet DHCP - Address Lease Reuse Reduces Startup Time • Short Messages Can be Packed to Reduce Interrupts on Receiving CPUs • Provides Redundant Network Interface and Redundant Devices HSE is Designed for Flexibility • Annunciation contains Manufacturer Identification and Model Number • Network Independence - Supports Dual LAN and Ring Topologies • Isolated Subnet, Backbone, Device and Subsystem Integration • Built-in Diagnostics - Annunciation of Changes and Network Statistics
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic High Speed Ethernet Benefits HSE is Designed for the Future • Takes Full Advantage of Modern Microprocessors and Network Architecture • Uses Platform Independent Internet Standards • HSE is Not a tunneling protocol - Not Constrained by Legacy Packet Design • Word Alignment and Flat Data Structures Greatly Reduce CPU Cycles • Modern - 32 Bit Object Address, 64 Bit Memory Address, 32 Bit Data Length • No Tag/Length Codes Needed Because There is No Old Protocol • IETF Recognized - Reserved Multicast Address - Annunciation & Redundancy • IETF Recognized - Reserved Ports for SM, FMS • Consistent Interface with Web Technology • Easy to extend to standard monitors
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Function Blocks Function blocks: • Encapsulate basic automation functions • Reside in device or in host • Are connected and provide deterministic control FC FC HMI Process H1 Fieldbus FT FT FC HMI Process H1 Fieldbus FT PID-110 AO-110 AI-110 Each device contains • One resource block • Transducer blocks for each input and output • At least one function block
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Flexible Function Block (FFB) for Discrete/Batch/Hybrid Applications Application-Specific I/O Number and Type Configured by User Application-Specific Algorithm Configured by User Flexible Function Block
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Flexible Function Block (FFB) MAI O U T 1 - 8 AI OUT DI OUT_D MAO I N 1 - 8 AO CAS_IN DO IN_D IN_0 I N 1 - 8 IN_D IEC 61131 Application Flexible Function Block O U T 1 - 8 OUT_D OUT FFB is a “Wrapper” for an IEC 61131 Application
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Flexible Function Blocks 8 Channel Analog Input/Output 8 Channel Discrete Input/Output and Application Specific (IEC 61131-3) Basic Function Blocks PID Control, Ratio Control Manual Loader, PD Control Ratio,Control Selector Discrete Input/Output Analog Input/Output Bias/Gain Advanced Function Blocks Analog Alarm, Arithmetic Deadtime, Device Control Input Selector, Integrator Setpoint Ramp Generator Splitter Lead/Lag, Timer Signal Characterizer Basic and Advanced Process Control Applications Batch/Discrete/Hybrid/ Remote I/O/PLC Applications Standard Function Blocks Flexible Function Blocks ♦ Supervisory Data Acquisition ♦ Sensor bus interfacing ♦ Coordinated Drives ♦ Batch Control ♦ Single Loop Control ♦ Feedforward Control ♦ Cascade Control ♦ Override Control ♦ Ratio Control ♦ Manual Loader ♦ Lead/Lag Compensation ♦ Signal Characterization ♦ Timing and Integration ♦ Advanced Alarming ♦ Motor Control ♦ Math H1/HSE FOUNDATION fieldbus Communication Network FOUNDATION fieldbus User Layer Example Applications Function Blocks
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture H1 - Device Integration HSE - Subsystem Integration HSE - Server Integration OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION P L P L P L P L APPLICATION PACKAGES MIS
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture H1 - Device Integration P L P L P L P L OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION H1 INTEGRATES DEVICES AT THE FIELD LEVEL Function Blocks Running in Field Devices Control in the Field - Single Loop Integrity Fault Tolerant – Multiple Link Masters Power & Signal on a Single, Multi-Drop Wire Pair Distances up to 1900 Meters without Repeaters Can Add Repeaters - Fiber Optics Option Supports Intrinsic Safety
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture HSE - Subsystem Integration OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION HSE INTEGRATES SUBSYSTEMS High Performance Control Backbone (100 Mbps) Standard Ethernet Equipment and Wiring Standard Function Blocks PLUS Flexible Function Blocks for Discrete/Batch/PLC Redundant HSE Interfaces and Devices Linking Devices Integrate H1
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture HSE - Server Integration OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION HSE INTEGRATES DATA SERVERS Application Packages Provide Information for MIS Servers Provide the Platform for Application Package e.g. HMI, Configuration, Diagnostics, ERP, MES, etc. HSE is the Open Common Interface for Server Access All H1 and HSE Data is Available to the Server APPLICATION PACKAGES MIS
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture H1 + HSE Provides Full Information Integration • H1 and HSE Have the Same Proven Function Block User Layer • H1 and HSE Have Plug and Play Interoperability • H1 Provides Distributed Process Control and Device Integration • HSE Provides High Performance Control and Subsystem Integration • End User Selects Communications Performance Desired: H1 or HSE • HSE Allows Data Servers to Integrate all Plant Information H1 + HSE Flattens the Plant Hierarchy, Cuts Cost and Increases Performance • Integration of Sensors, I/O Converter and Controller into a Single Device • Single Architecture Reduces Networks and Gateways in the Plant • Open Architecture has Suppliers Competing on Features, Not Network • High Volume of H1 Devices and COTS Ethernet is Driving Down Cost • Diagnostics Reduce Shutdowns and Reduce MTTR
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic How it Works Distributed Control on H1
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Function Blocks A location-independent model for distributed control AI-110 PID-110 AO-110 FC FC HMI Process H1 Fieldbus FT FT
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 DEVICE TYPES • The “Link Active Scheduler” (LAS) controls communication on the bus. – Distributes Time to other devices – Compels devices to publish data at precise time • Device Type – Link Master - Capable of supporting the LAS function. – Basic - Not capable of supporting the LAS function.
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic DEVICE TYPES H1 Fieldbus LAS BASIC DEVICE LAS = Link Active Scheduler LINK MASTER DEVICE LINK MASTER DEVICE BASIC DEVICE BASIC DEVICE BASIC DEVICE LAS X
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Deterministic Scheduling • Execution of function blocks and communication is scheduled • Execution is deterministic • Control is really distributed “on the wire” • KEY feature of FOUNDATION fieldbus - it is a system, not just a bus • FF also includes provisions for a back-up schedule
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Scheduling Example Function blocks: • Encapsulate basic automation functions • Reside in device or in host • Are connected and provide deterministic control FC FC HMI Process H1 Fieldbus FT FT FC HMI Process H1 Fieldbus FT PID-110 AO-110 AI-110 Each device contains • One resource block • Transducer blocks for each input and output • At least one function block
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Acyclic Alarms/Events Maintenance/Diagnostic Information Program Invocation Permissives/Interlocks Display Information Trend Information Configuration Function Block Execution Cyclic Communication - Publish Acyclic Communication Scheduling Example AI110 PID110 AO110 Cyclic Macrocycle
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic How it works Device Description Technology
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Descriptions • Device descriptions describe all the capabilities of a Foundation Fieldbus device in a standard language • Device description services uses device descriptions to provide all the information from a device to the system’s host devices Benefits of device descriptions include: • Operators use only one HMI, and all process data looks and feels the same for operators • Maintenance needs only one configurator, not a different handheld for each device • Device descriptions are the key to interoperability
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Description A DD contains the following information about the parameters of a device: • Attributes like coding, name, engineering unit, write protection, how to display etc. • The arrangement of the parameters in a menu structure, names of menus and submenus. • Information about the relation of a parameters to others. • Information about help texts and help procedures. • Information about necessary operating interactions (e.g. calibration), also called methods.
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Vendor Writes DD for Device 009 101 002 "MEASURED_VALUE" 001 010 061 "3.1f" 021 066 220 000 000 020 000 000 000 000 DD Token File (.FFO) Tokenizer Tool VARIABLE ProcessVariable { LABEL "MEASURED_VALUE"; TYPE FLOAT { DISPLAY_FORMAT "3.1f"; MAX_VALUE 110.0; MIN_VALUE 0.0; } } DDL Source File DD Symbol File (.SYM) block __analog_output_block 0x800201F0 member VL_SP_LO_LIM variable-list 0xC0010175 variable ProcessVariable float 0x80020136
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Descriptions Enumerations Units Relationships Calibration Help Host Associates DD with Data Values … … … … ... Fieldbus DD Structured text description for each field device that precisely defines the format of its data 101011010101010….. “Process Value”
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Host Uses DD to display data Host Application Device Description Services Library DD Files Values are read from the device over the fieldbus. Number of digits of precision Engineering Unit Label 25.50 Measured_Value %
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Capability file • Based on the Common File Format specification • Provides the details of device for offline configuration tool. • Describes the Communication aspects of the device • Provides examples values
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic CFF VS. DD Device Description • Describes Function Block parameters • Menu and Method Procedures for configuring a device’s Function Block. • Multi-lingual label and help information • Parameter relationships Capability File • Profile information • Actual number of Function Blocks inside device • Function Block Timing • Provides example communication and function block data • Details host systems need to for offline configuration.
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic DD/CFF Files available on the Web The Fieldbus Foundation will maintain the Device Descriptions and Capability Files for registered devices. Accessible via FTP or http://www.fieldbus.org INTERNET Fieldbus.org Fieldbus Host System
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic How it works HSE Redundancy
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerance • Use COTS hardware and software. • Provide redundant communication paths; redundant paths must be transparent to Applications. • Provide for redundant devices; devices connect to all network types. • Test connectivity through all ports; devices make independent decisions about which port to use. • Devices share knowledge of network status.
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerant Example Simple Network (Non- Redundant) HSE Subnet LD = Linking Device HD = Host Device LD-Y LD-X Non Fault Tolerant LAN HD Interface A A A
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerant Example Dual Interface/Dual LAN HD HSE Subnet LD-Y LD-X LAN A LAN B Interfaces HD A B A B A B A LD = Linking Device HD = Host Device
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerant Example Dual Interface/Single LAN HSE Subnet LD = Linking Device HD = Host Device LD-Y LD-X Single Fault Tolerant LAN HD Interface A A A B B
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Redundancy Example LAN A LAN B A B A B A B A B X X Node 3: Interface A partial failure; can receive, but not transmit Node 4: Interface B complete failure. Device 1 Device 2 Device 3 Device 4
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Redundancy Example * Note that the cross statuses will all be “X” for a dual LAN. That is, messages originating from an interface A are never heard on an interface B and vice versa. X/X X/X X/X OK/X 4 X/OK OK/X X/OK OK/X 3 (this device) X/OK X/X X/OK OK/X 2 X/OK X/X X/OK OK/X 1 Received from Interface A*/B Received from Interface A/B* Received from Interface A*/B Received from Interface A/B* Device 3 Received on Interface B Device 3 Received on Interface A Received on Interface B Received on Interface A Device # Reported Status Extracted from Diagnostic Message Diagnostic Message Received
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Testing and Registration
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Interoperability Interoperability is the capability to substitute a field device from one manufacturer for that of another manufacturer without loss of functionality. Interoperability offers: • Freedom to choose the right device for an application • The ability of the manufacturer to add new and useful features • Elimination of proprietary protocols and custom software drivers and upgrade
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Benefits of Testing and Registration • Every device must pass interoperability testing to be registered by the Foundation • Assures users that devices from different manufacturers have been subjected to common set of tests • Confirms characteristics of devices • Assures interoperability Registered devices display the Fieldbus Foundation registered mark Fieldbus Foundation publishes a list of registered devices in the product directory at www.fieldbus.org
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 Conformance Testing • Conformance test of communication stack confirms compliance with FOUNDATION protocol specification • Conformance testing is performed only at Fraunhofer Institute, an independent testing facility in Germany • Test results from stack under test are compared with those from a system with a known good stack for verification
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Stack Registration Process Upper Tester ™ FOUNDATION Registered H1 Stack = Tests Run at Fraunhofer Institute in Karlsruhe, Germany Report issued to FF H1 Stack to be tested
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Stack Registration Status 50 Registered Stacks • 26 Link Masters • 24 Basic Stacks Updated: 14-Feb-2003
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Testing Kit (HTK) Test Scope • Annunciation and Startup • Address/Tag Assignment • System/Network Management Behavior • HSE Messaging • H1-H1 Bridging • HSE-H1 Communication • Capability File • Redundancy Messaging
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Linking Device Registration Linking Device to be tested Registered H1 Stack HSE Stack H1 HSE ™ ; FOUNDATION Registered Linking Device Exhibit A on Web Site = Tests Run at Fieldbus Foundation in Austin, TX Report issued to Device Manufacturer ;
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Linking Devices • Allow communications between HSE and H1 networks • Registered Linking Devices – ABB – Emerson – SMAR – Softing Linking Device HSE H1 Links Updated: 14-Feb-2003
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Interoperability Testing Program • Confirms common characteristics of devices • Essential for plug & play • Assures users that devices from different manufacturers have been subjected to common set of tests • Fieldbus Foundation will publish list of registered devices in a product directory (www.fieldbus.org) • Devices tested and verified by a Third Party
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Interoperability Testing Requirements • Registered Communication Stack – Confirm compliance with communication protocol specification • Physical Layer Conformance Test – Ensure device complies with physical layer specification Only when both requirements are meet can a manufacturer submit for Interoperability Testing.
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Registration Process Device to be tested Function Blocks Registered Stack ™ ; FOUNDATION Registered Device Listed on FF web site = Tests Run at Fieldbus Foundation in Austin, TX Report issued to Device Manufacturer ;
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Registration Status 128 Unique Registered Devices 221 Total Registrations (multiple device versions) Updated: 14-Feb-2003
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HIST Program Details • HIST participation is voluntary • Host System Vendors develop Test Cases based on FF-controlled HIST Procedures • FF Staff perform or witness running of tests on host • Host completing HIST is issued a Letter of Confirmation (LOC) • Host functionality supported and posted on FF web site
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HIST Host Feature Checklist • Device Tag Assignment • Device Address Assignment • Configuration of Link Master Devices • Block Tag Configuration • Block Instantiation • Standard Blocks • Enhanced Blocks • Custom Blocks • Function Block Linkage Configuration • FF Alert Configuration • FF Alert Handling • FF Trend Configuration • FF Trending Handling • Device Description Services • DD Method Execution • DD Menu Handling • DD Edit Displays Handling • Capability Files
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Host Interoperability Support Test • The following hosts have met the requirements and have joined the HIST Program – ABB - Industrial IT – Emerson Process Management - DeltaV – Foxboro - FoxCAE – Honeywell - PlantScape – Honeywell - Experion-PKS – Rockwell - Process Logix – Smar - System 302 – Yamatake - Industrial-DEO – Yokogawa - CENTUM – Yokogawa - STARDOM Updated: 14-Feb-2003
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HIST - User Benefits • Confirms functionality supported by Host Vendors • Essential for plug & play • Assures users that registered devices from different manufacturers have been subjected to many hosts • Fieldbus Foundation will publish list of Host functionality supported, and registered devices used on FF Web site (WWW.FIELDBUS.ORG)
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Additional References
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Additional References www.fieldbus.org Download Technical Guides • FD-043 Technical Overview • AG-165 Installation and Planning Guide • AG-140 Wiring and Installation Guide • AG-163 Intrinsically Safe Systems Guide
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Additional References Title: "Process fieldbuses - Engineering, Operation and Maintenance" Author: Jonas Berge Publisher: The Instrumentation, Systems and Automation Society (ISA) ISBN 1-55617-760-7 Price: US$ 95 (US$ 76 for ISA members)
© 2003 by the Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Questions

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Basic Foundation field bus communication

  • 1.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic FOUNDATION fieldbus How It Works and Why It Works! An Introduction
  • 2.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Agenda Refreshments and Introductions 08:00 – 08:30 Demonstrations 10:30 – 12:30 Break 10:00 – 10:30 Presentation 08:30 – 10:00
  • 3.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Topics • Introduction to the Technology • How it Works! – Distributed Controls – Device Description Technology – HSE Redundancy • Testing and Registration – H1 Devices – Linking Devices – Host Systems
  • 4.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Introduction
  • 5.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic P L F Automation and Display Systems Fieldbus Process Plant H1 Fieldbus Fieldbus - a digital, two-way multi-drop communication link among intelligent measurement and control devices, and automation and display systems.
  • 6.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic REDUCED WIRING AND INSTALLATION H1 Fieldbus Benefits Traditional 4-20 mA wiring, one IS barrier, one pair for each device 4-20 mA IS IS IS IS One IS barrier, one pair for many devices IS Fieldbus
  • 7.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic EXPANDED VIEW OF PROCESS H1 Fieldbus Benefits IS IS IS IS 4-20 mA Fieldbus IS
  • 8.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 Fieldbus Benefits MORE INFORMATION FOR ENGINEERING AND MAINTENANCE IS IS IS IS One Process Value 4-20 mA IS Fieldbus Mode, Value, Status, Alarms, Trends
  • 9.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic 4-20 mA PID AO AI In today’s systems, control functions all reside in central controllers. H1 Fieldbus Benefits DISTRIBUTION OF FUNCTIONS Fieldbus can be used in the same way, but fieldbus also enables control and I/O functions to be distributed to field instruments. AI IS Fieldbus AO PID PID
  • 10.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic High Speed Ethernet HSE uses the same User Layer technology as H1 – Function Blocks – Device Descriptions HSE uses the Ethernet/Internet for Communications – Standard IEEE Physical Layer – Standard Internet Protocols for the “Stack” – Commercial Off The Shelf (COTS) Network Equipment
  • 11.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 P L Plant P L Plant P L Plant H1 H1 P L Plant H1 100 Meters on Twisted Pair 2000 Meters on Fiber HSE CLIENT COTS 100 Mbit/s Switch Linking Device Linking Device HSE Devices High Speed Ethernet High Speed Ethernet High Speed Ethernet Ethernet Field Device High Speed Ethernet
  • 12.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic High Speed Ethernet Benefits HSE is Designed for High Performance Control • Distributed Control on a COTS 100 Megabit per Second Backbone • Same Function Blocks and Device Description Technology as H1 • Function Block Synchronization on the Backbone • System Time Synchronization - Master Clock (e.g. GPS) to HSE to H1 • New Flexible Function Blocks for Hybrid/Batch/PLC/Remote I/O Applications • Supports High Speed Data Generators/Users (e.g. Analyzers, Controllers) • Uses Standard Internet DHCP - Address Lease Reuse Reduces Startup Time • Short Messages Can be Packed to Reduce Interrupts on Receiving CPUs • Provides Redundant Network Interface and Redundant Devices HSE is Designed for Flexibility • Annunciation contains Manufacturer Identification and Model Number • Network Independence - Supports Dual LAN and Ring Topologies • Isolated Subnet, Backbone, Device and Subsystem Integration • Built-in Diagnostics - Annunciation of Changes and Network Statistics
  • 13.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic High Speed Ethernet Benefits HSE is Designed for the Future • Takes Full Advantage of Modern Microprocessors and Network Architecture • Uses Platform Independent Internet Standards • HSE is Not a tunneling protocol - Not Constrained by Legacy Packet Design • Word Alignment and Flat Data Structures Greatly Reduce CPU Cycles • Modern - 32 Bit Object Address, 64 Bit Memory Address, 32 Bit Data Length • No Tag/Length Codes Needed Because There is No Old Protocol • IETF Recognized - Reserved Multicast Address - Annunciation & Redundancy • IETF Recognized - Reserved Ports for SM, FMS • Consistent Interface with Web Technology • Easy to extend to standard monitors
  • 14.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Function Blocks Function blocks: • Encapsulate basic automation functions • Reside in device or in host • Are connected and provide deterministic control FC FC HMI Process H1 Fieldbus FT FT FC HMI Process H1 Fieldbus FT PID-110 AO-110 AI-110 Each device contains • One resource block • Transducer blocks for each input and output • At least one function block
  • 15.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Flexible Function Block (FFB) for Discrete/Batch/Hybrid Applications Application-Specific I/O Number and Type Configured by User Application-Specific Algorithm Configured by User Flexible Function Block
  • 16.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Flexible Function Block (FFB) MAI O U T 1 - 8 AI OUT DI OUT_D MAO I N 1 - 8 AO CAS_IN DO IN_D IN_0 I N 1 - 8 IN_D IEC 61131 Application Flexible Function Block O U T 1 - 8 OUT_D OUT FFB is a “Wrapper” for an IEC 61131 Application
  • 17.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Flexible Function Blocks 8 Channel Analog Input/Output 8 Channel Discrete Input/Output and Application Specific (IEC 61131-3) Basic Function Blocks PID Control, Ratio Control Manual Loader, PD Control Ratio,Control Selector Discrete Input/Output Analog Input/Output Bias/Gain Advanced Function Blocks Analog Alarm, Arithmetic Deadtime, Device Control Input Selector, Integrator Setpoint Ramp Generator Splitter Lead/Lag, Timer Signal Characterizer Basic and Advanced Process Control Applications Batch/Discrete/Hybrid/ Remote I/O/PLC Applications Standard Function Blocks Flexible Function Blocks ♦ Supervisory Data Acquisition ♦ Sensor bus interfacing ♦ Coordinated Drives ♦ Batch Control ♦ Single Loop Control ♦ Feedforward Control ♦ Cascade Control ♦ Override Control ♦ Ratio Control ♦ Manual Loader ♦ Lead/Lag Compensation ♦ Signal Characterization ♦ Timing and Integration ♦ Advanced Alarming ♦ Motor Control ♦ Math H1/HSE FOUNDATION fieldbus Communication Network FOUNDATION fieldbus User Layer Example Applications Function Blocks
  • 18.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture H1 - Device Integration HSE - Subsystem Integration HSE - Server Integration OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION P L P L P L P L APPLICATION PACKAGES MIS
  • 19.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture H1 - Device Integration P L P L P L P L OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION H1 INTEGRATES DEVICES AT THE FIELD LEVEL Function Blocks Running in Field Devices Control in the Field - Single Loop Integrity Fault Tolerant – Multiple Link Masters Power & Signal on a Single, Multi-Drop Wire Pair Distances up to 1900 Meters without Repeaters Can Add Repeaters - Fiber Optics Option Supports Intrinsic Safety
  • 20.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture HSE - Subsystem Integration OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION HSE INTEGRATES SUBSYSTEMS High Performance Control Backbone (100 Mbps) Standard Ethernet Equipment and Wiring Standard Function Blocks PLUS Flexible Function Blocks for Discrete/Batch/PLC Redundant HSE Interfaces and Devices Linking Devices Integrate H1
  • 21.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture HSE - Server Integration OPEN, INTEGRATED ARCHITECTURE for INFORMATION INTEGRATION HSE INTEGRATES DATA SERVERS Application Packages Provide Information for MIS Servers Provide the Platform for Application Package e.g. HMI, Configuration, Diagnostics, ERP, MES, etc. HSE is the Open Common Interface for Server Access All H1 and HSE Data is Available to the Server APPLICATION PACKAGES MIS
  • 22.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Integrated Architecture H1 + HSE Provides Full Information Integration • H1 and HSE Have the Same Proven Function Block User Layer • H1 and HSE Have Plug and Play Interoperability • H1 Provides Distributed Process Control and Device Integration • HSE Provides High Performance Control and Subsystem Integration • End User Selects Communications Performance Desired: H1 or HSE • HSE Allows Data Servers to Integrate all Plant Information H1 + HSE Flattens the Plant Hierarchy, Cuts Cost and Increases Performance • Integration of Sensors, I/O Converter and Controller into a Single Device • Single Architecture Reduces Networks and Gateways in the Plant • Open Architecture has Suppliers Competing on Features, Not Network • High Volume of H1 Devices and COTS Ethernet is Driving Down Cost • Diagnostics Reduce Shutdowns and Reduce MTTR
  • 23.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic How it Works Distributed Control on H1
  • 24.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Function Blocks A location-independent model for distributed control AI-110 PID-110 AO-110 FC FC HMI Process H1 Fieldbus FT FT
  • 25.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 DEVICE TYPES • The “Link Active Scheduler” (LAS) controls communication on the bus. – Distributes Time to other devices – Compels devices to publish data at precise time • Device Type – Link Master - Capable of supporting the LAS function. – Basic - Not capable of supporting the LAS function.
  • 26.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic DEVICE TYPES H1 Fieldbus LAS BASIC DEVICE LAS = Link Active Scheduler LINK MASTER DEVICE LINK MASTER DEVICE BASIC DEVICE BASIC DEVICE BASIC DEVICE LAS X
  • 27.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Deterministic Scheduling • Execution of function blocks and communication is scheduled • Execution is deterministic • Control is really distributed “on the wire” • KEY feature of FOUNDATION fieldbus - it is a system, not just a bus • FF also includes provisions for a back-up schedule
  • 28.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Scheduling Example Function blocks: • Encapsulate basic automation functions • Reside in device or in host • Are connected and provide deterministic control FC FC HMI Process H1 Fieldbus FT FT FC HMI Process H1 Fieldbus FT PID-110 AO-110 AI-110 Each device contains • One resource block • Transducer blocks for each input and output • At least one function block
  • 29.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Acyclic Alarms/Events Maintenance/Diagnostic Information Program Invocation Permissives/Interlocks Display Information Trend Information Configuration Function Block Execution Cyclic Communication - Publish Acyclic Communication Scheduling Example AI110 PID110 AO110 Cyclic Macrocycle
  • 30.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic How it works Device Description Technology
  • 31.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Descriptions • Device descriptions describe all the capabilities of a Foundation Fieldbus device in a standard language • Device description services uses device descriptions to provide all the information from a device to the system’s host devices Benefits of device descriptions include: • Operators use only one HMI, and all process data looks and feels the same for operators • Maintenance needs only one configurator, not a different handheld for each device • Device descriptions are the key to interoperability
  • 32.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Description A DD contains the following information about the parameters of a device: • Attributes like coding, name, engineering unit, write protection, how to display etc. • The arrangement of the parameters in a menu structure, names of menus and submenus. • Information about the relation of a parameters to others. • Information about help texts and help procedures. • Information about necessary operating interactions (e.g. calibration), also called methods.
  • 33.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Vendor Writes DD for Device 009 101 002 "MEASURED_VALUE" 001 010 061 "3.1f" 021 066 220 000 000 020 000 000 000 000 DD Token File (.FFO) Tokenizer Tool VARIABLE ProcessVariable { LABEL "MEASURED_VALUE"; TYPE FLOAT { DISPLAY_FORMAT "3.1f"; MAX_VALUE 110.0; MIN_VALUE 0.0; } } DDL Source File DD Symbol File (.SYM) block __analog_output_block 0x800201F0 member VL_SP_LO_LIM variable-list 0xC0010175 variable ProcessVariable float 0x80020136
  • 34.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Descriptions Enumerations Units Relationships Calibration Help Host Associates DD with Data Values … … … … ... Fieldbus DD Structured text description for each field device that precisely defines the format of its data 101011010101010….. “Process Value”
  • 35.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Host Uses DD to display data Host Application Device Description Services Library DD Files Values are read from the device over the fieldbus. Number of digits of precision Engineering Unit Label 25.50 Measured_Value %
  • 36.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Capability file • Based on the Common File Format specification • Provides the details of device for offline configuration tool. • Describes the Communication aspects of the device • Provides examples values
  • 37.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic CFF VS. DD Device Description • Describes Function Block parameters • Menu and Method Procedures for configuring a device’s Function Block. • Multi-lingual label and help information • Parameter relationships Capability File • Profile information • Actual number of Function Blocks inside device • Function Block Timing • Provides example communication and function block data • Details host systems need to for offline configuration.
  • 38.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic DD/CFF Files available on the Web The Fieldbus Foundation will maintain the Device Descriptions and Capability Files for registered devices. Accessible via FTP or http://www.fieldbus.org INTERNET Fieldbus.org Fieldbus Host System
  • 39.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic How it works HSE Redundancy
  • 40.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerance • Use COTS hardware and software. • Provide redundant communication paths; redundant paths must be transparent to Applications. • Provide for redundant devices; devices connect to all network types. • Test connectivity through all ports; devices make independent decisions about which port to use. • Devices share knowledge of network status.
  • 41.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerant Example Simple Network (Non- Redundant) HSE Subnet LD = Linking Device HD = Host Device LD-Y LD-X Non Fault Tolerant LAN HD Interface A A A
  • 42.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerant Example Dual Interface/Dual LAN HD HSE Subnet LD-Y LD-X LAN A LAN B Interfaces HD A B A B A B A LD = Linking Device HD = Host Device
  • 43.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Fault Tolerant Example Dual Interface/Single LAN HSE Subnet LD = Linking Device HD = Host Device LD-Y LD-X Single Fault Tolerant LAN HD Interface A A A B B
  • 44.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Redundancy Example LAN A LAN B A B A B A B A B X X Node 3: Interface A partial failure; can receive, but not transmit Node 4: Interface B complete failure. Device 1 Device 2 Device 3 Device 4
  • 45.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Redundancy Example * Note that the cross statuses will all be “X” for a dual LAN. That is, messages originating from an interface A are never heard on an interface B and vice versa. X/X X/X X/X OK/X 4 X/OK OK/X X/OK OK/X 3 (this device) X/OK X/X X/OK OK/X 2 X/OK X/X X/OK OK/X 1 Received from Interface A*/B Received from Interface A/B* Received from Interface A*/B Received from Interface A/B* Device 3 Received on Interface B Device 3 Received on Interface A Received on Interface B Received on Interface A Device # Reported Status Extracted from Diagnostic Message Diagnostic Message Received
  • 46.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Testing and Registration
  • 47.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Interoperability Interoperability is the capability to substitute a field device from one manufacturer for that of another manufacturer without loss of functionality. Interoperability offers: • Freedom to choose the right device for an application • The ability of the manufacturer to add new and useful features • Elimination of proprietary protocols and custom software drivers and upgrade
  • 48.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Benefits of Testing and Registration • Every device must pass interoperability testing to be registered by the Foundation • Assures users that devices from different manufacturers have been subjected to common set of tests • Confirms characteristics of devices • Assures interoperability Registered devices display the Fieldbus Foundation registered mark Fieldbus Foundation publishes a list of registered devices in the product directory at www.fieldbus.org
  • 49.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic H1 Conformance Testing • Conformance test of communication stack confirms compliance with FOUNDATION protocol specification • Conformance testing is performed only at Fraunhofer Institute, an independent testing facility in Germany • Test results from stack under test are compared with those from a system with a known good stack for verification
  • 50.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Stack Registration Process Upper Tester ™ FOUNDATION Registered H1 Stack = Tests Run at Fraunhofer Institute in Karlsruhe, Germany Report issued to FF H1 Stack to be tested
  • 51.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Stack Registration Status 50 Registered Stacks • 26 Link Masters • 24 Basic Stacks Updated: 14-Feb-2003
  • 52.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Testing Kit (HTK) Test Scope • Annunciation and Startup • Address/Tag Assignment • System/Network Management Behavior • HSE Messaging • H1-H1 Bridging • HSE-H1 Communication • Capability File • Redundancy Messaging
  • 53.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HSE Linking Device Registration Linking Device to be tested Registered H1 Stack HSE Stack H1 HSE ™ ; FOUNDATION Registered Linking Device Exhibit A on Web Site = Tests Run at Fieldbus Foundation in Austin, TX Report issued to Device Manufacturer ;
  • 54.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Linking Devices • Allow communications between HSE and H1 networks • Registered Linking Devices – ABB – Emerson – SMAR – Softing Linking Device HSE H1 Links Updated: 14-Feb-2003
  • 55.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Interoperability Testing Program • Confirms common characteristics of devices • Essential for plug & play • Assures users that devices from different manufacturers have been subjected to common set of tests • Fieldbus Foundation will publish list of registered devices in a product directory (www.fieldbus.org) • Devices tested and verified by a Third Party
  • 56.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Interoperability Testing Requirements • Registered Communication Stack – Confirm compliance with communication protocol specification • Physical Layer Conformance Test – Ensure device complies with physical layer specification Only when both requirements are meet can a manufacturer submit for Interoperability Testing.
  • 57.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Registration Process Device to be tested Function Blocks Registered Stack ™ ; FOUNDATION Registered Device Listed on FF web site = Tests Run at Fieldbus Foundation in Austin, TX Report issued to Device Manufacturer ;
  • 58.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Device Registration Status 128 Unique Registered Devices 221 Total Registrations (multiple device versions) Updated: 14-Feb-2003
  • 59.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HIST Program Details • HIST participation is voluntary • Host System Vendors develop Test Cases based on FF-controlled HIST Procedures • FF Staff perform or witness running of tests on host • Host completing HIST is issued a Letter of Confirmation (LOC) • Host functionality supported and posted on FF web site
  • 60.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HIST Host Feature Checklist • Device Tag Assignment • Device Address Assignment • Configuration of Link Master Devices • Block Tag Configuration • Block Instantiation • Standard Blocks • Enhanced Blocks • Custom Blocks • Function Block Linkage Configuration • FF Alert Configuration • FF Alert Handling • FF Trend Configuration • FF Trending Handling • Device Description Services • DD Method Execution • DD Menu Handling • DD Edit Displays Handling • Capability Files
  • 61.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Host Interoperability Support Test • The following hosts have met the requirements and have joined the HIST Program – ABB - Industrial IT – Emerson Process Management - DeltaV – Foxboro - FoxCAE – Honeywell - PlantScape – Honeywell - Experion-PKS – Rockwell - Process Logix – Smar - System 302 – Yamatake - Industrial-DEO – Yokogawa - CENTUM – Yokogawa - STARDOM Updated: 14-Feb-2003
  • 62.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic HIST - User Benefits • Confirms functionality supported by Host Vendors • Essential for plug & play • Assures users that registered devices from different manufacturers have been subjected to many hosts • Fieldbus Foundation will publish list of Host functionality supported, and registered devices used on FF Web site (WWW.FIELDBUS.ORG)
  • 63.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Additional References
  • 64.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Additional References www.fieldbus.org Download Technical Guides • FD-043 Technical Overview • AG-165 Installation and Planning Guide • AG-140 Wiring and Installation Guide • AG-163 Intrinsically Safe Systems Guide
  • 65.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Additional References Title: "Process fieldbuses - Engineering, Operation and Maintenance" Author: Jonas Berge Publisher: The Instrumentation, Systems and Automation Society (ISA) ISBN 1-55617-760-7 Price: US$ 95 (US$ 76 for ISA members)
  • 66.
    © 2003 bythe Fieldbus Foundation. All rights reserved. “. . . dedicated to a single international fieldbus.” General Assembly 28 February 2003 Singapore Polytechnic Questions