1. © Swagelok Company, 2002 Rick Ales 4/21/2003 Evolution of NeSSI Gen III Circa 200? Miniature/Modular (enabled by Mechanical Standard) Smart Devices (enabled by Communication Standard) Micro Analytical (enabled by Technology Advances) End User Value Gen II Circa 2005 Gen I Now We are Here At the Pipe (enabled by Intrinsic Safety)

2. © Swagelok Company, 2002 Rick Ales 4/21/2003 Intrinsically Safe Network Dilemma Existing IS Networks: –ControlNet –Foundation Fieldbus –Profibus PA –HART These Networks are: –Too big, –Too complicated –Too expensive!

3. © Swagelok Company, 2002 Rick Ales 4/21/2003 Why DeviceNet? Up to 64 Nodes. 500 m @ 125Kb, 100 m @ 500Kb. 8 byte network length, fragmentation application. Linear trunk / drop line. Power & signal on same cable. 24Vdc @ 8A Peer to Peer or Master/Slave. Remove & replace under power. Hazardous area classification is Class 1 Div 2 Open standard administered by ODVA. SMALL, SIMPLE & CHEAP!! –5-10 times cheaper than other industrial networks.

4. © Swagelok Company, 2002 Rick Ales 4/21/2003 Why Not DeviceNet? Not rated Class 1 Div 1 A factory automation protocol.

5. © Swagelok Company, 2002 Rick Ales 4/21/2003 NeSSI Sensor Bus Choices Make a Class 1 Div 1 network (ie. Foundation Fieldbus, Profibus PA, Hart, or ControlNet) small and cheap or … Use Class 1 Div 2 DeviceNet in an enclosure rated for hazardous environments or … Make DeviceNet Class 1 Div 1

6. © Swagelok Company, 2002 Rick Ales 4/21/2003 Common Industrial Protocol Device Profiles & Electronic Data Sheets Application Object Library Messaging Routing & Connection Management Control Net Ether Net /IP Device LevelControl LevelInformation Level Device Net Transport, Data Link & Physical Layers User & Application Layers DeviceNet Overview DeviceNet is an open industrial networks built upon the Common Industrial Protocol (CIP). –DeviceNet is managed by ODVA. –ControlNet is managed by ControlNet International –EtherNet/IP jointly managed by ControlNet International & ODVA

7. © Swagelok Company, 2002 Rick Ales 4/21/2003 Intrinsically Safe DeviceNet Class 1 Zone 0 rating of EEx ia IIC T4 DeviceNet Master and the single network power source is located in Class 1 Zone 2 area. Main trunk line maximum distance 100 ft. Maximum power consumption per node is 0.25W Maximum 10 nodes per trunk line. Technically feasible!!

8. © Swagelok Company, 2002 Rick Ales 4/21/2003 NeSSI DeviceNet Structure Semiconductor Device Profiles Automotive Device Profiles Application Object Library Messaging Routing & Connection Management Device Net (CAN Bus) DeviceNet Physical Layer Div 2 ControlNet DLL Transport ControlNet Physical Layer Future Firewire, USB Bluetooth, ATM Encapsulation 802.x EtherNet Physical Layer IP UDPTCP User Layer Application Layer Data Link & Transport Layer Physical Layer Device LevelControl LevelInformation Level Common Device Profiles Generic Device Profiles CIP Div 2Div 1 Analytical Inst. Device Profiles

9. © Swagelok Company, 2002 Rick Ales 4/21/2003 Open DeviceNet Vendor Association ODVA is an international association comprised of members from the world's leading automation companies.

10. © Swagelok Company, 2002 Rick Ales 4/21/2003 ODVA’s Role Owns and manages the DeviceNet Specification. Manages the development of CIP network technologies. Assists manufacturers and users of CIP networks through tools, training and marketing activities. Manages testing labs to verify conformance of vendors' products to the DeviceNet Specifications.

11. © Swagelok Company, 2002 Rick Ales 4/21/2003 ©2001 Open DeviceNet Vendor Association Technical Review Board (TRB) Board Of Directors CIP Common Protocol System Architecture SIG CIP Common Marketing SIG CIP Common Device Profile SIGs Enabler SIG (future) Enabler JSIG Physical Layer SIG Physical Layer JSIG System SIG System JSIG Conformance SIG Conformance JSIG Automotive SIGSemiconductor SIG ODVA Member Functions Analytical Instrumentation SIG

12. © Swagelok Company, 2002 Rick Ales 4/21/2003 ODVA Staff Executive Director Staff Technologist Conformance Test Service Providers Member and Customer Service Operations Management

13. © Swagelok Company, 2002 Rick Ales 4/21/2003 DeviceNet IS Initiative Extend the user layer definitions to include analytical instrumentation device definitions and additional EDS formats. Extend the conformance testing to include support for analytical applications. Extend the physical layer definition to include the intrinsically safe option. Obtain agency approval of DeviceNet IS.

14. © Swagelok Company, 2002 Rick Ales 4/21/2003 Resource Requirements Quorum of Analytical Instrumentation vendors to form a DeviceNet SIG and create device profiles & conformance tests. ($5K/yr ODVA dues.) –Analytical Instrument SIG might be supplemented by a User’s Advisory Board. (Associate membership) Engineering resource for physical layer development. Technical resource to obtain agency approval. Development, testing and approval project costs: $500K to $750K.

15. © Swagelok Company, 2002 Rick Ales 4/21/2003 What’s Next? Reassess the need for intrinsically safe network. Convene a group of Key NeSSI stake holders to meet with ODVA directors to create a DeviceNet IS initiative project plan and identify resources and funding sources. ODVA goal: announce the DeviceNet IS initiative at ISA 2003.