1. Modular Sampling System Initiative Pittcon: March 7, 2001 New Sampling/Sensor Initiative “Electrifying” NeSSI - Wireless to the Rescue? Pittcon 2001 Meeting New Orleans, March 7, 2001

2. Modular Sampling System Initiative Pittcon: March 7, 2001 VTPA Today: Brute Force Method Power & Signal Delivered to Sensor from Controller Controller serve as the I/O Device Sampling System does not have any “Smarts” All Diagnostics in the Controller Analyzer Controller

3. Modular Sampling System Initiative Pittcon: March 7, 2001 ve IA Controller (ASIC) VTPA Sensor Analytical Manager SAM Signal In/Out to Analyzer Controller Alternative Brute Force Method P Legend: Pressure Sensor Temp Sensor Valve Analytical Sensor V A T Local Sensor I/O Manager (like Opto22 devices or PLC) Local SAM Power Each sensor uses individual signal/power wires Requires Wiring Harness Useful for Remote Operation of Sampling System (such as NIR and RAMAN analyzers - would be a fiber-optic probe in this case) A

4. Modular Sampling System Initiative Pittcon: March 7, 2001 V T P A Signal In/Out to AC Improvement 1: Power Bus (Addressed in previous Session) Sensor Analytical Manager (SAM) Signal Wires Only Shared Power Bus

5. Modular Sampling System Initiative Pittcon: March 7, 2001 SRT Improvement 2: Wireless Signal between SAM and Controller V T P A Sensor Manager (I/O Controller) Sensor Analytical Manager (SAM) Analyzer Controller SRT = Sensor Receiver/Transmitter Type 2 Configuration

6. Modular Sampling System Initiative Pittcon: March 7, 2001 Wireless Hub Improvement 3: Wireless Signal between SAM and Wireless Hub V T P A Sensor Manager (I/O Controller) Sensor Analytical Manager (SAM) Connected to Level 2 Ethernet Field LAN This configuration would be especially useful where Controller/Analyzer is remotely located from Sampling system (analyzer sensor in this case would typically be a fiber optic probe (e.g., RAMAN and NIR applications) Field Ethernet LAN Type 3 Configuration

7. Modular Sampling System Initiative Pittcon: March 7, 2001 P A Power Module V T SRT Improvement 4: All Wireless Signal Analyzer Controller Type 4 Configuration

8. Modular Sampling System Initiative Pittcon: March 7, 2001 Level 2 Ethernet Field GP Area P A V T RAMAN, NIR etc. Fiber-Optic Sensor. WH Examples of Wireless Configurations Control System Analyzer Server & Workstation WH = Wireless Hub 1 on 1 Type 4 1 on 1 Type 2 1 on 2 Type 2 1 on 1 Type 3 2 on 1 Type 2

9. Modular Sampling System Initiative Pittcon: March 7, 2001 Happy SAM