Documenting Control System Functionality for Digital Control Implementations

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Documenting Control System Functionality for
Digital Control Implementations

• IAEA Technical Meeting Sept 13 to 16
• Chatou, France
• J. Harber, M. Borairi
• S. Tikku, A. Josefowicz

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Background

• Process Control
• Digital Control Computers, Relay, Anlg Ctrl
• Safety Critical Applications
• Modern Tools
• Requirements development traceability
• Hardware functionality

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Plant Control Platforms
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Implementation Considerations

• Decomposition into Functions
• Safety significance
• Production considerations
• Process Control Simulations
• Development of plant models
• Operator Interfaces
• Use of modern HFE Concepts

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Software Development Process
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Control Requirements

• Overview Diagram
• Definition of system boundaries and interfaces
• Standard Functions
• Encapsulation
• Re-useable elements
• Support for Downstream Activities
• Validation of design

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CFS Overview Diagram
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Typical Relay Logic
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Standard Function
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