1. NeSSI: Industry Vision & Gen III – what are the next steps?
Discussion Moderator: Rob Dubois
CPAC/NeSSI Workshop
Seattle, Washington, USA
November 9, 2006

2. Agenda A recap of industry visions. Is NeSSI in alignment?
Gen III microAnalytical
issues and barriers
Gen III specification
what information is needed?
Gen III implementation
what could CPAC do to enable the development of microAnalytical devices?

3. 1. Industry Visions – is NeSSI in alignment?
NAMUR, VDI/VDE-GMA (Roadmap for Process Sensors )
All physical and chemical data are available at any time by all equipment parts and processes
Measurement takes place without interference in the process
The measured values are available in real time
Ideally sensor systems function without maintenance, calibration and adjustment
The sensor systems are inexpensive
NIST/ATP Vision 2020 (Process Measurement and Control )
Develop technology to provide smart sensors for all process measurement
Develop tools to diagnose faults in real-time
…deliver modular systems both in hardware and software.
Develop devices to minimize maintenance: including self-diagnostics, fault detection, minimized service requirements and the capability for in-situ standardization and calibration.

4. Gen III Model: microAnalytical on NeSSI (power & communication on the NeSSI-bus)
Valve
D/A
Network
Press/
Temp
A/D
Network
SAM
Substrate
Substrate
Substrate
On/Off and Modulating Valves
Flow, Pressure, Temp. Sensors
PHASED Micro GC
Moisture in Dry Gas

5. Examples of (early) Generation III (microAnalytical)
microGC
Courtesy of SLS micro technology
microGC (PHASED)
Courtesy of Honeywell
Photometeric sensor
Courtesy of J. Coates

6. 2. Gen III what are the Issues & Barriers? (notes)
Can/should the NeSSI-bus be used to transfer high intensity data (spectra and chromatograms)?
one can send just send key information, quality factors
can be done
keep open ended – should be able to handle large amounts information
CAN can handle high intensity data
data speed is not critical in many applications

7. Different Implementation Model for microAnalytical
dcs
“B” Type
non-modular
NeSSI-bus used for communication
can use power externally or from the bus
EExd enclosure
“A” TYPE
modular
bus power and comm.
Intrinsically Safe
NeSSI™-bus P A V F
Sensor/Actuator
Manager (SAM)
Fluid Handling System
Aux. Power (hazardous wiring methods)

8. 3. What would be required in a Gen III document? (notes)
Detailed specification is not required
Need Development phases
macro to micro…
Interfaces described to allow Intellectual Property to “flourish” between the rails
Have inventors concentrate on microAnalytical measurement not packaging and communication
Provide connectivity model

9. Could we employ a phased Development?
Phase III
Phase II
Phase I
Hybrid/uses some NeSSI
on-substrate/bus powered
Throwaway
low power
smallest
disposable
robust/self-diagnostic
redundant

10. 4. Gen III Implementation (notes)
What could CPAC do to enable the development of microAnalytical devices?
a clearing house for microanalytical
further definition needed
use of the terms microlytics and sensometrics for small devices