© 2008 Swagelok Company. IS CAN Bus – CiA DSP 103 V 1.0 Low Cost, Intrinsically Safe Transducer Bus Enabling NeSSI Gen II Rick Ales Swagelok Company IFPAC 2008 Baltimore, MD
© 2008 Swagelok Company. Swagelok NeSSI Gen II Bus Architecture V T P A NeSSI Device Sample System Flow Sensors Sensor Analyzer Manager SAM IS NeSSI Bus Remote Operator Station & Plant Control System Ethernet Analyzer Hazardous Area Class 1 Div 1 (Zone 1)
© 2008 Swagelok Company. Swagelok ISO OSI Communications Model Virtual Message Path Actual Message Path
© 2008 Swagelok Company. Swagelok CANopen Communications Model DS301 Application Layer Communications Framework Profile DS401 Generic IO Modules Profile DS404 Measuring Devices Profile DS405 Programmable Devices Profile DS425 Medical Devices Data Link Layer CAN 2.0* ISO Physical Layer ISO CiA DS 102 Physical Layer CiA DSP 103 NEW Application Layer CENELEC EN Software IC Chip Drivers CAN: Controller Area Network protocol developed Robert Bosch for automotive applications. Hardware
© 2008 Swagelok Company. Swagelok IS and the Ignition Curve Voltage = Distance Frequency
© 2008 Swagelok Company. Swagelok IS Capable CANopen Architecture +Vdc Grnd CAN-HI CAN-LO Circuit Segment Cable Length Circuit Voltage ≤ 9.5 Vdc Segment Driver = 3.3 Vdc Cable Length ≤ 10 m
© 2008 Swagelok Company. Swagelok Gen II NeSSI Bus Open Standard CiA 103 DSP V1.0 April 2007
© 2008 Swagelok Company. Swagelok IS CANopen Highlights The CAN physical layerISO ,2 & CiA DSP103 Area ClassificationClass 1 Div 1 (Zone 1) Power bus specification P+F RSD2-PSD-EX4.43 Co-cabled 10m max2 Power and 2 CAN wires M12 or M8 ConnectorsSingle power source per device 3.3V BiCMOS Driver1/3 the Power of 5V Driver Entity Parameters V OC (V)I SC (A)GroupsC O (uF)L O (uH) A, B (IIC) (Acetylene & Hydrogen) Vdc1.0 A C (IIB) (ethylene) D (IIA) (propane) 6.480
© 2008 Swagelok Company. Swagelok What’s Next? DS301 Application Layer Communications Framework Profile DS401 Generic IO Modules Profile DS404 Measuring Devices Profile DS405 Programmable Devices Profile DS426 Analytical Devices Data Link Layer CAN 2.0 ISO Physical Layer ISO CiA DS 102 Physical Layer CiA DSP 103 Application Layer CENELEC EN NEXT
© 2008 Swagelok Company. Swagelok Discussion?