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Analyser Network Data Transfer
NeSSI Workshop May 5, 2005
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Enterprise Data Layers
Company Management Data Presentation Company Management Information Level 5 Company Production Assignment Scheduling Supervision Company Production Scheduling Assignment IT Security Policies and Practices (ISO 17799) Operational & Production Supervision Production Scheduling & Operational Management Level 4 Common technologies, policies and practices Purdue reference Model Levels Supervisor’s Console Inter-Area Coordination Level 3 Supervisor’s Console Supervisory Control Level 2 Ethernet Mfg Security Policies and Practices (ISA 99) Operator’s Console Direct Digital Control Level 1 HSE Process Safety IEC 61508, (ISA 84, IEC 61511) Controllers H1 Process Safety Critical
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Fieldbus Device Structure
Resource Block Hardware information Status information Transducer Block Isolates function blocks from local I/O functions required to read sensor Stores calibration information Function Blocks Provide control system behavior 10 standard function blocks 19 additional ones will be available Fieldbus Resource Block Function Blocks Transducer Block Physical Sensor or Actuator
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Resource Block (RB) Contains data that is specific to the hardware that is associated with a device no links no data processing each device must have a resource block ON / OFF switch for device All configurations MODE_BLK: Auto
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Transducer Block (XD) Manufacturer-specific
Each device has a different XD Sensor information Calibration Status All configurations MODE_BLK: Auto Device-specific TERMINAL_NUMBER (IF and FI devices) SENSOR_TRANSDUCER_NUMBER (dual temp. dev.)
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Function Blocks Another key feature Standard function blocks:
enables control strategy implementation allows function blocks from different manufacturers to pass information Standard function blocks: Discrete Input Discrete Output Analog Input Analog Output PID/PI/I Controller PD/P Controller Control Selector Manual Loader Bias / Gain Station Ratio Station
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Function Blocks Advanced function blocks: Pulse Input
Complex Analog Output Complex Discrete Output Step Output PID Device Control Deadtime Integrator Analog Alarm Analog Human Interface Setpoint Ramp Generator Input Selector Signal Characterizer Lead Lag Controller Signal Splitter Arithmetic Timer Digital Alarm Digital Human Interface
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Function Block Model Outputs Inputs (Manual, Auto, etc...)
Algorithms Example: PID Inputs Outputs Mode Structure (Manual, Auto, etc...) Alarm Subsystem Event Subsystem
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Flexible Function Block
New Block Subclass - Flexible Flexible (MIO) - Part 4 Multiple Analog Input - 8 Channels Multiple Analog Output - 8 Channels Multiple Discrete Input - 8 Channels Multiple Discrete Output - 8 Channels Flexible (IEC ) - Part 5 Application-specific Blocks
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Flexible Function Block
FULLY User Configurable Use IEC languages to define: Block calculations Data Manipulation Outputs can be ANY of the Function Block types defined by the Foundation including Multiple Inputs
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Flexible Function Block - Hardware
Linking Device most prevalent Interface between H1 and HSE HSE based output Classes Linking Field Only Linking Class available at present
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High Speed Ethernet (HSE)
Based on Ethernet Supports all types of physical media Fiber (IS) Copper Coax H1 consumes 1% of available bandwidth “Comingle” with other Ethernet based communications if desired Web based, etc.
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Enterprise Data Layers
Company Management Data Presentation Company Management Information Level 5 Company Production Assignment Scheduling Supervision Company Production Scheduling Assignment IT Security Policies and Practices (ISO 17799) Operational & Production Supervision Production Scheduling & Operational Management Level 4 Common technologies, policies and practices Purdue reference Model Levels Supervisor’s Console Inter-Area Coordination Level 3 Supervisor’s Console Supervisory Control Level 2 Ethernet Mfg Security Policies and Practices (ISA 99) Operator’s Console Direct Digital Control Level 1 HSE Process Safety IEC 61508, (ISA 84, IEC 61511) Controllers H1 Process Safety Critical
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Data Transfer beyond Field Level
Data Objects Consistent definition from field to ERP Develop “data dictionary” ISA-76 Working Group Formed at AD 2005 Develop path forward for project plan approval in October
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Next Steps Consistent “dictionary” Apply throughout system
Compatible with existing efforts by other organizations ISA Mimosa Namur Others? Object based Parent-child relationships Apply throughout system
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Next Steps Call for volunteers Contribute materials for Analyser types
Sample system variables S.A.M.
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