progress and developments in network solutions for nessi generation ii
DESCRIPTION
Progress and Developments in Network Solutions for NeSSI Generation II. CPAC May 2005 John Mosher – Honeywell Sensing & Control. The Network “Rail” Enables Information. Communications Interface “Rail”. The Area Between the Enabling “Rails” is Where Sensor and Instrument Vendors Add Value and - PowerPoint PPT PresentationTRANSCRIPT
Progress and Developmentsin Network Solutions for
NeSSI Generation II
CPAC May 2005John Mosher – Honeywell Sensing & Control
Physical Interface “Rail” – ANSI/SP76Physical Interface “Rail” – ANSI/SP76
Communications Interface “Rail”Communications Interface “Rail”
The Area Between the Enabling “Rails” is WhereThe Area Between the Enabling “Rails” is WhereSensor and Instrument Vendors Add Value andSensor and Instrument Vendors Add Value andCommercialize Intellectual Property.Commercialize Intellectual Property.
The Network “Rail” Enables Information
NeSSI-Net
• NeSSI Generation II Network Requirements:NeSSI Generation II Network Requirements:- Intrinsically Safe
- Multi-variable Capability
- Configuration Storage and Update Capability
- Diagnostic Capability
- Connectivity to Sensor Actuator Manager (SAM)
- Fault Tolerance
- Protocol administered independently (not by NeSSI/CPAC)
- Open System
- World-wide acceptance
- Petrochemical market acceptance
- Key customer acceptance
The Network Enables Information and Uptime
•The Fieldbus Foundation:
- Offered to help with Specification Definition
- Will coordinate resources with NeSSI product vendors
- Offered Technical Assistance in Implementing FF
- Understands Vision for MicroAnalytical Platform
- Free Device Conformance Testing
Foundation Fieldbus
•Foundation Fieldbus Chosen for Generation II/III
- Proposed, discussed and accepted at CPAC Fall Meeting
- Meets all criteria of requirements
- Minor engineering work to shrink network interface
- Press Release Issued at Foundation Fieldbus General Assembly
Foundation Fieldbus Value:
• FF delivers benefits today- Wiring and cabinet savings
- Asset management for lower maintenance and fewer incidents
- Faster startup, commissioning, maintenance
• Fieldbus supports a rich set of capabilities - Control on the wire (the only protocol that has it)
- Automatic Addressing
- Automatic Configuration via Electronic Data Descriptions
- Automatic Replacement Device Configuration
- Built-in Alarming
- Function Blocks for Simple Device Management
- Seamless Data Transfer with FF HSE (High Speed Ethernet)
Foundation Fieldbus Users
• BASF • BP• Bristol Myers Squibb• ChevronTexaco• ConocoPhillips• CPC• Distileria Serralles• Gaz de France • NGT• Petroquimica União• Polioles S.A.• Pride Chemical• Putra Jaya
• Qatar Petroleum Corporation
• SASOL • Shell Global Solutions• Shin-Etsu• SINOPEC• Skandinaviska Raffinaderi• Sokolovska Uhelna • Solvay • Statoil Kvitebjoern• Sunoco• Unocal• Wintershall
Programmable Substrate Heater
Auxiliary Heating/Cooling
Substrate
FF Interface
AO
AI
FOUNDATION fieldbus H1
AI
AI
PIDDI
AO
SAM
SAM Controller
FFB
FOUNDATION fieldbus HSE/OPC/etc…FF Blocks
TB
TB
PS
FISCOPower Supply
Control Functions
A/D
Network
Foundation Fieldbus Architecture for NeSSI
FF Device Design Parameters
Recommended Parameters for Hazardous Area Devices:
Parameter Recommended Value
Device Approval Voltage 24 V min
Device Approval Current 250 mA min
Device Input Power 1,2 W min
Device Residual Capacitance 5 nF max
Device Residual Inductance 20 uH max
I.S. Classification EX ia IIC (gas groups A & B) T4
Source: Foundation Fieldbus Application Guide 31.25 kbp/s Intrinsically Safe Systems AG-163 Rev 2.0
Fieldbus I.S. Power Architecture
I.S. Fieldbus with Bus-Powered Devices
Ph – Fieldbus Power Supply with I.S. Circuit
Ph
Db – I.S. Certified Bus-powered Device
Db Db Db
Th – I.S. Certified Terminator
Th
Th
I.S. Interface
SAFE AREA HAZARDOUS AREA
Source: Foundation Fieldbus Application Guide 31.25 kbp/s Intrinsically Safe Systems AG-163 Rev 2.0
NeSSI-Net Future Directions
• Room for Improvement?- Extended Temperature Range
- Improved FISCO Node Count
- ProfiBus PA
• NIST Program- Intrinsically Safe CAN bus
- Working Group Established
- Adoption of CANOpen
- Definition of Physical Layer
- Prototype in Development
- IS Certification costs Discussed
The Network Enables Information and Uptime
Honeywell Foundation Fieldbus
New Experion R300 Series C Foundation Fieldbus Module• 4 Fieldbus H1 channels• Fully Redundant Configuration available• 100 Mbps to Experion Controller or directly to Server
