Taking Advantage of Foundation Fieldbus Device Functionality Larry Wolfe Director, Technology Deployment REM Services, Inc. Charlotte, NC
Taking Advantage of
Foundation FieldbusDevice Functionality
Larry WolfeDirector, Technology Deployment
REM Services, Inc.Charlotte, NC
November 17, 2009 Slide 22
Abstract
Taking Advantage of Foundation Fieldbus DeviceFunctionality
Foundation Fieldbus systems have been deployed in many facilitiessince their introduction in the late 1990’s. System and devicefunctionalities have improved in many ways since. This presentationwill provide an overview of Foundation Fieldbus functionality, contrastthe use of 4-20mA devices versus fieldbus devices in monitoring andcontrol strategies, and highlight what users across the organizationneed to know about the technology to gain the most benefit.
A control system and field devices utilizing current Foundation Fieldbusfunctionality will used throughout the presentation.
November 17, 2009 Slide 33
Larry Wolfe - Biography
Larry Wolfe is Director, Technology Deployment for REM Services,Inc. in Charlotte, North Carolina. Larry earned a BS in AerospaceEngineering in 1968 and an MS in Mechanical Engineering in 1974from the University of Oklahoma. Between his times at University heserved four years in the Air Force. He came to North Carolina aftergraduate school to Fiber Industries, Inc. in Salisbury, NC. After 10 +years with that company, he took a job with the Robert E. MasonCompany in Charlotte in 1985 and has worked for the Robert E. Masonfamily of companies since.
Larry has worked with the integration of Process Control systems andfield devices for most of his career. He has worked with FieldbusFoundation host and device products from Emerson since theirintroduction. He has worked with customers to implement the benefitsthe systems provide and has helped to familiarize users with systemand device capabilities.
November 17, 2009 Slide 44
Quick History of FF
• DCS Systems introduction in 1970’s• ISA – SP50 Committee efforts• Interoperability Systems Project• WorldFIP North America• Merging of ISP and WorldFIP NA to form
November 17, 2009 Slide 55
What is Foundation Fieldbus?
• H1 is an all-digital, serial, two-way, deterministic,cyclic and acyclic communication systeminterconnecting “field” equipment such assensors, actuators and I/O
• The Physical Layer is OSI layer 1• The Data Link Layer (DLL) is OSI layer 2• The Fieldbus Message Specification (FMS) is
OSI layer 7• The Communication Stack is comprised of
layers 2 and 7 in the OSI model
November 17, 2009 Slide 66
Physical Layer
• Foundation Fieldbus uses a two or threewire shielded cable (several classes fordifferent applications)
• Terminated at both ends• Maximum segment length 1900m• Segment Design Tools available• Connectivity and diagnostics products and
tools available from multiple vendors
November 17, 2009 Slide 77
OSI vs Fieldbus Model
* The user application is not defined by the OSI Model
OSI Model*
Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer
Data Link Layer
Physical Layer
Application Layer
Fieldbus AccessSublayer
Physical Layer
Communication“Stack”
UserApplication
UserApplication
Fieldbus Model
6
7
5
4
3
2
1
November 17, 2009 Slide 88
Device Descriptions
• The “drivers” for Foundation FieldbusDevices
• Typically two DD files and one capabilitiesfile
• Used by the host/control system tounderstand functions available in device
• DD’s are available on Foundation Fieldbuswebsite and vendor websites
November 17, 2009 Slide 99
Foundation Fieldbus Blocks
• The Fieldbus Foundation has defined astandard User Application Layer based on“Blocks.”
• There are three standard block types inthe FF User Application Layer
• Resource Block• Transducer Block• Function Block
November 17, 2009 Slide 1010
Resource Block
• The Resource Block describescharacteristics of the fieldbus device suchas the device name, manufacturer, andserial number
• There is only one Resource Block in adevice
November 17, 2009 Slide 1111
Transducer Block
• The Transducer Blocks are used toconfigure devices
• Transducer Blocks decouple FunctionBlocks from the local input/outputfunctions required to read sensors andcommand output hardware
• They can contain information such ascalibration date and sensor type
November 17, 2009 Slide 1212
Function Blocks
• Function Blocks (FB) provide the controlsystem behavior
• The input and output parameters ofFunction Blocks can be linked over thefieldbus
• The execution of each Function Blockused is precisely scheduled
November 17, 2009 Slide 1313
Partial Function Block List
RARatio
PIDProportional/Integral/Derivative
PDProportional/Derivative
MLManual Loader
DODiscrete Output
DIDiscrete Input
CSControl Selector
BGBias/Gain
AOAnalog Output
AIAnalog Input
SymbolFunction Block Name
AALAnalog Alarm
TMRTimer
ARArithmetic
ISInput Selector
SPGSetpoint Ramp Generator
ITIntegrator (Totalizer)
DTDeadtime
LLLead Lag
SCSignal Characterizer
OSOutput Splitter
DCDevice Control
SymbolFunction Block Name
November 17, 2009 Slide 1414
Still More Function Blocks
MDOMultiple Discrete Output
MDIMultiple Discrete Input
MAOMultiple Analog Output
MAIMultiple Analog Input
SymbolFunction Block Name
November 17, 2009 Slide 1515
Commissioning Devices
• Assign the device a name• Assign the device a permanent address
– (DeltaV calls this the Commissioned address)
• Download the information to the deviceand the host
November 17, 2009 Slide 1616
Downloading Devices
• Loads information into host accessibleparameters of the device – typically innon-volatile memory
• Assigns permanent Fieldbus addressesand names to devices and device blocks
• May require download of “shadow” blocksif host uses this functionality
November 17, 2009 Slide 1717
Segment Communications
• VCR• DD / DDL• Basic Device• Link Master• Compel Communications• Publish PV OUT• Subscribe• Token• Probe Node Message
November 17, 2009 Slide 1818
DeltaV Macrocycle
November 17, 2009 Slide 1919
Segment Design Software
• Pepperl+Fuchs Segment Design– http://www.segmentchecker.com/
• MTL Fieldbus segment calculator v1.5.4– http://www.mtl-inst.com/products/C397
November 17, 2009 Slide 2020
Handheld Tools
• Segment Diagnostic Tools– MTL Fieldbus Monitor, FBT-6– MTL FBT-3 Fieldbus monitor– MTL FBT-4 Fieldbus Power & Signal Probe– MTL Fieldbus Wiring Validator, FBT-5
• http://www.mtl-inst.com/product/test_equipment/
• Device Configuration/Diagnostic Tools– Emerson 375 / 475 Field Communicators
HART and Foundation Fieldbus• http://www2.emersonprocess.com/en-us/brands/fieldcommunicator/Pages/fieldcommunicators.aspx
November 17, 2009 Slide 2121
Foundation Fieldbus DeviceConfiguration / Diagnostic Software
• Emerson AMS Intelligent Device Manager– http://www2.emersonprocess.com/en-
US/brands/amssuite/amsdevicemanager/Pages/AMSDeviceManager.aspx
• National Instruments– http://sine.ni.com/nips/cds/view/p/lang/en/nid/10240
November 17, 2009 Slide 2222
References
• Fieldbus Foundation– http://www.fieldbus.org/
• Emerson Process Managementhttp://www2.emersonprocess.com/en-US/plantweb/whatisplantweb/connecting/Pages/FOUNDATION_Fieldbus.aspx
November 17, 2009 Slide 2323
References
• Pepperl+Fuchs– http://www.am.pepperl-fuchs.com/products/productfamily.jsp?division=PA&productfamily_id=1244
• MTL– http://www.mtl-inst.com/products/C77/
November 17, 2009 Slide 2424
Resources for learninghttp://www2.emersonprocess.com/en-US/plantweb/whatisplantweb/connecting/Pages/FOUNDATION_Fieldbus.aspx
November 17, 2009 Slide 2525
Resources for learning cont.
• http://www2.emersonprocess.com/en-US/plantweb/whatisplantweb/connecting/Pages/FOUNDATION_Fieldbus.aspx
November 17, 2009 Slide 2626
Resources for learning cont.
• http://plantweb.emersonprocess.com/university/default.asp
November 17, 2009 Slide 2727
Resources for learning cont.
• http://plantweb.emersonprocess.com/university/engSch_Fieldbus_XML.asp
November 17, 2009 Slide 2828
Resources for learning cont.
November 17, 2009 Slide 2929
Questions?
Questions? / Comments!
November 17, 2009 Slide 3030
Foundation Fieldbus Demo
• Foundation Fieldbus Demonstration– Host DeltaV V10.3 Scalable Process System– AMS Intelligent Device Manager– Devices
• Rosemount– 3051S DPT 848T TT 644 TT– 3144 TT 752 Indicator
• Fisher Controls International– DVC6000F
• FieldQ– QC34 FF Controller
November 17, 2009 Slide 3131
Thank You Very Much!!
Thank you very muchfor your hospitality!!!