IEC 61069-1:2016

Overview

IEC 61069-1:2016 is an international standard published by the International Electrotechnical Commission (IEC) focused on industrial-process measurement, control, and automation. It specifically addresses the evaluation of system properties for system assessment purposes. This Part 1 of the series defines terminology and basic concepts essential for the assessment of Basic Process Control Systems (BPCS) and Basic Discrete Control Systems (BDCS), collectively known as Basic Control Systems (BCS).

This second edition from 2016 replaces the original 1991 version, incorporating a reorganization of content for enhanced clarity and consistency, as well as integrating material from IEC TS 62603-1:2014. The standard is widely used for discrete, batch, and continuous control applications, providing a foundational framework for understanding and evaluating control systems in industrial environments.

Key Topics

Terminology and Definitions

• Establishes clear and standardized terms for use in the assessment of control systems.
• Covers abbreviations, acronyms, symbols, and conventions vital for consistent communication.

Basic Concepts of System Assessment

• Defines the structure and properties of Basic Control Systems (BCS), including BPCS and BDCS.
• Addresses system functionalities such as data processing, communication, human-machine interface, and external system interfaces.

System Properties Covered

• Functionality: The capability to perform required control tasks.
• Performance: Efficiency and effectiveness in executing system functions.
• Dependability: Reliability and availability under specified conditions.
• Operability: Ease of operation and maintenance of the system.
• Safety: Systems’ contribution to overall operational safety and hazard prevention.

Influencing Factors

• Identifies environmental and installation factors affecting system properties, including:
  • Installation environment conditions (temperature, humidity, corrosive atmospheres)
  • Electromagnetic compatibility (EMC)
  • Power supply quality
  • Mechanical vibrations and shocks
  • Integration of subsystems and earth connections

Applications

IEC 61069-1:2016 is critical for engineers and professionals involved in designing, operating, and assessing industrial control systems. Its practical applications include:

• System Design and Validation: Assisting in defining system requirements and validating system properties against operational demands and safety standards.
• Performance Assurance: Guiding the evaluation of system performance to ensure efficient process control in industrial environments such as oil and gas, chemical plants, and manufacturing.
• Risk Management: Providing a basis for assessing dependability and safety, helping mitigate operational risks and comply with regulatory safety requirements.
• Maintenance Planning: Enhancing operability assessments to reduce downtime and streamline maintenance activities.
• Interdisciplinary Coordination: Offering a common terminology and framework that fosters collaboration between system designers, operators, and maintenance teams.

Related Standards

IEC 61069-1 is part of a broader series that comprehensively covers system property evaluations in industrial automation:

• IEC 61069-2: Assessment methodology outlining procedural approaches for system assessment.
• IEC 61069-3: Assessment of system functionality to verify control system operations.
• IEC 61069-4: Evaluation of system performance metrics.
• IEC 61069-5: Assessment of system dependability focusing on reliability and availability.
• IEC 61069-6: Operability assessment to ensure user-friendly maintenance and operation.

This standard is harmonized with IEC and ISO directives and integrates information from IEC TS 62603-1 for influencing factors, ensuring alignment with international best practices.

Keywords: IEC 61069-1, basic control system, industrial process control, control system assessment, BPCS, BDCS, system properties, system terminology, system evaluation, industrial automation standards, system dependability, IEC standards, process automation.