1. NeSSI* - Generation II “Revolution or Evolution?”
*New Sampling/Sensor Initiative
CPAC - November 5-8, 2001
Rob Dubois - Peter van Vuuren - Jim Tatera .
Tatera and Associates
“the best way to predict the future is to create it”

2. The Recent History of ISA2001 Meeting (Joint ISA/CPAC Session)
NeSSI Tutorial Standing Room Only Interest Public Introduction of Generation II Specification
Open Discussion Session (Sept 11 Impact) Main Issue - Area Classification Requirements Identified X-Team to address
Ad-hoc Sensor Connectivity Session CAN-based protocols (e.g. SDS, DeviceNet) best candidates A C-team will clarify benefits of CAN and propose as preferred NeSSI sensor communications standard
Miscellaneous Efforts afoot to extend SP76 to IEC standard NeSSI Tutorial at INTERMAC Meeting in Japan (Nov 8) - Rob Dubois NeSSI Marketing Survey Underway
11/15/2018

3. Hot Off The Press
Legacy
NeSSI
11/15/2018

4. Facilitate the acceptance/implementation of...
Major Goals of
Facilitate the acceptance/implementation of...
modular, miniature & smart sample system technology
based on ISA SP76 standardization work
Promote the concept of...
field-mounted smart sampling/analytical systems
integration of sample systems with physical/chemical sensors
Lay the groundwork for...
open connectivity architecture for sensor communications (e.g. Ethernet, DeviceNet, etc.)
industry standard communication protocols (e.g. OPC, DeviceNet, CAN etc.)
web enabled technologies (e.g. Browser based HMI)
Provide a technology bridge to the process for...
“sensor/lab-on-a-chip” micro-analytical devices

5. NeSSI Generations NeSSI Generation I (circa 2000-2002)
mechanical, passive components are on a SP76 substrate
NeSSI Generation II (circa )
“electrified” passive & active components are on a SP76 substrate
integral heating and temperature control of the substrate
all electrical components are integrated with SAM
sensors and actuators communicate via sensor bus
smart (self-diagnostic) sample systems
NeSSI Generation III (circa 2003+)
many analytical sensors and micro-analytical systems
wireless sensors
11/15/2018

6. Generation II Dimensions covered in the Specification….
1. Heated Substrate
2. Physical Sensors
3. Actuators
4. SAM 
5. HMI (Graphical)
6. Wired Bus
7. Wireless Bus
8. X Mini Power Bus
9. Packaging
10. Analytical Sensor
11/15/2018

7. - over-temperature cut-off
1. Heated Substrate
Div/Zone 1
GP. A-D
Div/Zone 1 or 2
GP. A-D
Conduction Heating
- cartridge heater(s)
- over-temperature cut-off
AC Power
Furn. by
substrate mfg.
AC Power
Heating Fluids
(alternative)
11/15/2018

8. 2. Physical Sensors for System Diagnostics
Doing analytical is just not good enough!
Miniature Flow, Pressure, Temperature
Gas and/or liquid service
Rugged construction
Encapsulated (IEC Ex m)
Intrinsically Safe (IEC Ex ib)
Div/Zone 1 Gp A-D; T4 (135 C)
FLOW:
 P, coriollis,
thermal, other?
COM
A/D
Substrate
11/15/2018

9. 2. Conceptual Sensor for NeSSI
“Top Hat” Comm. Chip
Parallel Ports
- standard size/pin
- daisy chain A B
Body
- encapsulated
Comm.
Digital “Smart” Sensor
- engineering units
- memory µP
BARRIER
- Process Seal
- Electrical Isolation
- Thermal
Memory
A/D
Process Cavity
- no unswept voids
- low volume
Insulation Skirt
- engineered
1.50”
Base SS
- pressure rated
Sensor
11/15/2018

10. 3a. Electrical Actuators on the Substrate - COMBO
COMBO Valve
/w integral solenoid
Miniature substrate mount
Gas and/or liquid service
Wide P & T service
Rugged, encapsulated (IEC Ex m)
Intrinsically Safe (IEC Ex ib)
Div/Zone 1 Gp A-D; T4 (135 C)
Comm. SV
AIR
On/Off and
Proportional
Act.
11/15/2018

11. 3b. Conceptual “Combo” Valve
Parallel Ports
- standard size/pin
- daisy chain
“TopHat” Comm. Chip A B
Comm.
D/A
3-way “pilot” solenoid
valve - Intrinsically Safe
Vent
Solenoid
Instrument Air
Actuator
Digital On-Board
Actuator
- NO or NC
Vent
Conventional pneumatic valve
Valve
Engineered Insulation
Skirt
Thermal Barrier
11/15/2018

12. Gateway to an Ethernet LAN
4a. SAM explained...
Gateway to an Ethernet LAN
- OPC perhaps
HMI Interface - Field
- Graphical
- Wireless
- e.g. Bluetooth™,
Software Applets for
Sample System
Repetitive Tasks
(Industry Common)
Host to a
Sensor/Actuator Bus
11/15/2018

13. 4b. SAM Applets for Common Tasks
Zero & span validation
Pressure regulation
Stream switching
Maintenance diagnostics
Temperature control
Interoperability
talk to all analytical systems
Enabling Technology
for quick introduction
of microAnalytical
to Industry 
SAM
11/15/2018

14. 5. Human Machine Interface
PDA    
Hello? PC F Vv T Vv P F A
11/15/2018
Vv=automatic valve; P=pressure sensor; F=Flow Sensor;
A=Analytical Sensor;T=Temp. Sensor

15. 6a. Standalone “SAM” with Wired Sensor/Actuator Bus
Target Ex ib intrinsically safe
Plug & Play
CAN based connectivity
Analyzer System Ethernet LAN
Analyzer Controller
Sensor Analytical Manager (SAM)  ? V P
Legend: Pressure Sensor Temp Sensor Valve/Actuator Analytical Sensor V A T P T A
11/15/2018

16. 6b. Embedded SAM With Wired Sensor/Actuator Bus
Target Ex ib intrinsically safe
Plug & Play
CAN based connectivity
Analyzer System Ethernet LAN ? 
Analyzer Controller w/ Embedded SAM Functionality V P T A P
Legend: Pressure Sensor Temp Sensor Valve/Actuator Analytical Sensor V A T
11/15/2018

17. 7. Wireless Signal (Gen III…?)
Signal: Bluetooth , , other?
Plug and Play!
Power
X-proof miniature power bus
Analyzer System Ethernet LAN
Sensor Analytical Manager (SAM)  V P T A
P.S.
11/15/2018

18. 8. What the world needs is... ..a miniature wiring method
Sensors (typ)
..a miniature wiring method
“plug & socket”
Division/Zone 1
e.g. MTL (England)
Mini-Power Bus
AC Power
AC/DC
11/15/2018

19. 9. Enclosure/Package Convection Heater X-Proof (OPTIONAL) Div/Zone 1
GP. A-D
Div/Zone 1 or 2
GP. A-D
Temp. Sensor
Intrinsic Safe
AC Power
No Purge or
Pressurization
NEMA or IP Rated
Enclosure
- insulated
11/15/2018

20. 10. Analytical Sensors (Gen III…?)
Fiber Optic
SAM 
One sensor
per component
“lab on a chip” AT
One Sensor and
Multiple Analytes
“laser scanning device” F Vv T A A
11/15/2018

21. What would a Gen II prototype look like?
Programmable, heated substrate
Digital, serial sensors/actuators: F, P, T
Zone 1 enclosure interior
SAM; control algorithms
Wireless - graphical HMI
Packaged for outdoor installation
11/15/2018

22. Summary Generation II NeSSI Release of Generation II Spec
Evolution as opposed to revolution
Release of Generation II Spec
1st quarter 2002
To NeSSI Distribution List & IFPAC
11/15/2018

23. Acknowledgements I Dow Syncrude ExxonMobil Chemical CPAC
Danny Quevillon
Reg Hartwig
Walt Henslee
Bac Vu (SP76)
Syncrude
Ian Verhappen
ExxonMobil Chemical
Dan Podkulski (SP76)
Jeff Gunnell
John Cumbus
Rajko Puzic
CPAC
Mel Koch
Lloyd Burgess
Brian Marquardt
11/15/2018

24. Acknowledgements II Doug Mitchell - Panametrics
John Wawrowski - Swagelok
Rick Ales - Swagelok
Yoav Barshad - Applied Analytics
Nick van Bruggen - Porter
Carl Jones - Rosemount Analytical
CD Feng - Rosemount Analytical
Bob Nickels - Honeywell
Chris Towle - MTL
11/15/2018

25. Help Wanted/Needed Technology Teams
A-Team – Define Applications for SAM
C-Team – Communications for SAM to Sensors +
X-Team – Hazardous Electrical Area Issues
NeSSI Partners
A group of users and vendors to help invest in, develop, and evaluate NeSSI technology.
CPAC Web Site Listing NeSSI/SP76 Compatible Components
11/15/2018