www.circortech.com cpac fall- plowery 11-7-07 1 the ct76 solutions package: latest advances in...
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www.circortech.com
CPAC Fall- Plowery 11-7-07
1
The CT76 Solutions Package:
Latest Advances in Sample System Low Flow Instrumentation and IS Digital Bus
Technology
Patrick Lowery, CPAC Fall Meeting10/8/2007
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CPAC Fall- Plowery 11-7-07
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“Today”“Today”
Digital PilotValves
Multi-variable flow/pressure
meters
Common digital bus and power line to GC
9 volt Explosion Proof and IS
Power Supply
IS Power 9.5V out
Non-safe 120V in
Digital temp probe
Communication to the Analyzer
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“2008”“2008”
CAN Bus pilot valves and
sensors
Multi-variable flow/pressure/temp meters/controllers
IS communication gateways and
controllers (i.e. SAM)
IS CAN Bus
Communication to smart analyzer or to analyzer network/
DCS / PLC
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Technology RoadmapTechnology Roadmap
GEN III(micro-
Analyzers)
GEN II(standardized digital bus
components and embeddedor discreet sample system controller)
GEN I(standardized mechanical interconnect
and component footprint)
NeSSI™ Roadmap
NeSSI™ is a trademark of the Center for Process Analytical Chemistry, University of Washington
End of 2006
( “Gen 1.5”, analog and
mechanical)
TODAY (Gen 2)
End of 2007 (full IS and Control Solutions available)
Initiative “Gen 1.0”, started 1999
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StatusStatus
CIRCOR Tech built working Siemens I2C devices and delivered to the field in early 2007
CIRCOR participated in the CAN in Automation (CiA103 working group to help finalize draft document in early 2007
CIRCOR moved forward with several iterations of IS and non-incendive technology
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Component Solutions
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Multivariable DevicesMultivariable Devices
Multi-Variable Flow Meter Upstream and Downstream
Pressures Flow rate Fluid Temperature Closed-loop Control All Intrinsically Safe (IS)
except for Modbus version Contains device description
in memory Digitally re-scale of ranges Field rescale of orifice pack Integrated pressure relief
valve 1.5” x 3” x 4” (WxLxH) size IP65, NEMA 4X package
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Flow Meter FeaturesFlow Meter Features
IS Circuitry in mother daughter board arrangement for different sensor interfaces and different connector types
Different connectors and status indicating LED’s
IP rated SS enclosure
Digital Address ID
New multi-variable pressure, differential pressure, and temperature combo sensor (co-developed with Ametek using their MEMS Technology)
Anti-clogging flow restriction with integral relief valve
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Flow MeterFlow Meter
Three bus versions are (or will be) available IS CAN Bus Siemens I2C Maxum GC bus Modbus/RS485
Principle operates on measuring DP-P-T across a flow restriction, using new multi-variable MEMS sensing technology
Focusing on repeatability and reliability applications over pure accuracy applications
Closed-loop version will be available with a “combi-valve” using proportional air signal for IS considerations
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Flow Meter COOFlow Meter COO
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Future Flow MeterFuture Flow Meter
P, ΔP, T VALUES ARE STORED DAILY IN EEPROM AND
PERIODICALLY ANALYZED OR TRENDED
DP SENSORP1 and Temp
SENSOR
PARTICLE FILTER
HIGH PRESSURE
SIDE
LOW PRESSURE
SIDE
AMPLIFICATION, A/D CONVERTERS
MICROCONTROLLEROR
DSPEEPROM
P, ΔP
FILTER ELEMENT
DIGITAL BUSTRANSCEVIER
+ -
DIGITAL BUS INFORMATION (CAN BE SUPERIMPOSED
ON POWER LINES AS WELL)
Using the same sensor and circuitry, we can now use a particle filter as the flow restriction element. With intelligent sub-routines, the device can self-calibrate.
The device can monitor the status of the filter over time and tell the operator or a computer when the filter is clogged to a critical point.
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Valve SolutionsValve Solutions
Ultra Low powered solenoid valve manifolds
Intrinsically safe Multiples of six per bus
node to save on cabling cost
Up to 85 deg C Can go inside the sample
cabinet IP65 protection Less 0.1watts per valve
(maximize power budget)
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System Solutions
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Bus DescriptionsBus Descriptions
Modbus Devices: Based on an RS-485 physical layer Communication protocol invented by Modicon (PLC manufacturer) Widely used in automation products and integrated with almost all PLCs Typically used in Class 1, Div2 (zone 2) applications but can be used in Class 1
Div 1 with IS certified devices and IS isolator repeater/barriers Limited to 1-2 devices per Isolator/Repeater due to power consumption (i.e. 24V
technology) Siemens Maxum I2C: Based on proprietary physical layer
Used inside of Siemens Applied Automation Inc. (SAAI) process GC for years Robust and simple, Plug-and-Play Can only be used with Siemens hardware (configured to Siemens specifications)
CAN bus Devices: based on CiA103 physical layer standard CT76 iCAN™: CIRCOR Application Layer Protocol based on “Modbus emulation”
and IEEE1451.1 Electronic Data Sheet description using CiA103 physical layer and core Bosch CAN 2.0 data link layer (ISO 11889-1)
CANopen: A open standard application layer (EN 50325-4, CiA DS301) (more device resources needed, but available today)
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Next Steps for Bus
Next Steps for Bus
AIO
FT
Table
CAL
XMLmetadata
XMLmetadata
StandardSymbol w/Object Fields
StandardSymbol w/Object Fields
“TEDS”Device
Description
“TEDS”Device
Description
CANbusCANbus
SAMEthernetEthernet
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What’s Next
PROCESSANALYZER AND
CORE CPU LOCALHMI
ETHERNET OR FIELDBUS
OTHERANALYZERS
IN PLANT
SCADAOR
DCSOPTIONAL
CONNECTIVITY TO LAPTOP OR PDA WITH GUI
I/O “MODULES” WITH µP,DIGITAL PNEUMATIC CONTROL,
DIGITAL EPC PROPORTIONAL CONTROL FOR PILOT DRIVEN DEVICES
CAN, FIELDBUS, SERIAL
MULTI DROPFOR ADDITIONAL
SAMPLING SYSTEMS
TEMP CONTROLLED CABINET
DIGITALI/O FORDIGITALDEVICES
ANALOGI/O FORANALOGDEVICES
TEMPCONTROL
AIR CONTROL FOR PNEUMATICS AND PROPORTIONAL
FLOW
IS BARRIERS FOR ANALOG AND DIGITAL I/O
CLASS 1, DIVISION 1
ZONE
CAN ACCESS STATUS/HEALTH OF ANY ANALYZER OR RELATED SUBSYSTEM,
INCLUDING SAMPLING SYSTEM
CLASS 1, DIVISION 2, ZONE
THE CONCEPT BEHIND THE INTEGRATED ANALYZER/SAMPLING SYSTEM IS TO USE WHAT
IS AVAILABLE TODAY IN TERMS OF FLUID CONTROL/SENSING TECHNOLOGY AND THE
CURRENT I/O WITHIN THE ANALYZER
IF THE DEVICES ARE DIGITAL OR ANALOG MULTIVARIABLE (SUCH AS HART), THEN USE THE
MULTIVARIABLE INFORMATION, IF THEY ARE SIMPLY ANALOG, USE THE ANALOG
INFORMATION
ALL OF THIS INFORMATION AND CONTROL CAN BE UTILIZED VIA CONVENTIONAL DCS OR HMI
CONTROL
“Embedded SAM”
Sensor
Actuator
Manager
(Control Master
is the Process
Analyzer)
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Progress towards SAMProgress towards SAM
Example of IS CAN Bus Network (courtesy of CiA IS CAN Bus working group
Being Developed by CIRCOR
Being developed
By CIRCOR
Pepper & Fuchs
Being developed
By CIRCOR
Gateway-repeaterGateway-repeater
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SummarySummary
Circor has submitted hazardous area certification files to IEC-US-Canada and ATEX for IS Can bus and Modbus devices (valves, sensors, multi-variable flow, flow and pressure control)
Simple Gateways allow for connectivity to any architecture (Ethernet, PLC, SAM, data loggers, etc)
Next steps include driving TEDs for CANopen, SAM (application interface??), and derivations of core technology available today