Basic Principles of IEC 61499 Reference Model

2017 ◽  
pp. 11-23 ◽  
Author(s):  
Thomas Strasser ◽  
Alois Zoitl
Keyword(s):  
Reference Model ◽  
Basic Principles ◽  
Iec 61499

Standardized Dynamic Reconfiguration of Control Applications in Industrial Systems

2014 ◽  
Vol 2 (1) ◽  
pp. 57-73 ◽  
Author(s):  
Thomas Strasser ◽  
Martijn Rooker ◽  
Gerhard Ebenhofer ◽  
Alois Zoitl
Keyword(s):  
Power Systems ◽  
Reference Model ◽  
Dynamic Reconfiguration ◽  
Automation System ◽  
Special Focus ◽  
Control Logic ◽  
Industrial Automation ◽  
Control Applications ◽  
Automation And Control ◽  
Iec 61499

Industrial areas like manufacturing, logistics and power systems require highly flexible and adaptable control solutions in order to fulfill future requirements. An industrial automation system has to provide technologies, concepts and mechanisms allowing the adaption of control logic during operation. Proper engineering approaches as well as execution environments with dynamic reconfiguration capabilities are needed to turn this vision into reality. This article provides an overview of applying the IEC 61499 reference model for distributed automation as basis for a standard-compliant reconfigurable method in industrial environments. It covers the modeling and engineering of reconfiguration applications and their execution on distributed embedded controllers using IEC 61499. This approach significantly increases engineering efficiency and reuse in component-based design of industrial automation and control applications. A special focus of this contribution is the discussion of implemented industrial use cases from the manufacturing, robotics and power systems domain.

Zero-Downtime Reconfiguration of Distributed Control Logic in Industrial Automation and Control

2011 ◽  
pp. 55-81 ◽  
Author(s):  
Thomas Strasser ◽  
Alois Zoitl ◽  
Martijn Rooker
Keyword(s):  
Control Systems ◽  
New Technologies ◽  
Reference Model ◽  
Industrial Process ◽  
Control Logic ◽  
Control Applications ◽  
Automation And Control ◽  
Engineered Systems ◽  
And Control ◽  
Iec 61499

Future manufacturing is envisioned to be highly flexible and adaptable. New technologies for efficient engineering of reconfigurable systems and their adaptations are preconditions for this vision. Without such solutions, engineering adaptations of Industrial Process Measurement and Control Systems (IPMCS) will exceed the costs of engineered systems by far and the reuse of equipment will become inefficient. Especially the reconfiguration of control applications is not sufficiently solved by state-of-the-art technology. This chapter gives an overview of the use of reconfiguration applications for zero-downtime system reconfiguration of control applications on basis of the standard IEC 61499 which provides a reference model for distributed and reconfigurable control systems. A new approach for the reconfiguration of IEC 61499 based control application and the corresponding modeling is discussed. This new method significantly increases engineering efficiency and reuse in component-based IPMCS.

Standardized Dynamic Reconfiguration of Control Applications in Industrial Systems

2019 ◽  
pp. 776-793
Author(s):  
Thomas Strasser ◽  
Martijn Rooker ◽  
Gerhard Ebenhofer ◽  
Alois Zoitl
Keyword(s):  
Power Systems ◽  
Reference Model ◽  
Dynamic Reconfiguration ◽  
Automation System ◽  
Special Focus ◽  
Control Logic ◽  
Industrial Automation ◽  
Control Applications ◽  
Automation And Control ◽  
Iec 61499

Industrial areas like manufacturing, logistics and power systems require highly flexible and adaptable control solutions in order to fulfill future requirements. An industrial automation system has to provide technologies, concepts and mechanisms allowing the adaption of control logic during operation. Proper engineering approaches as well as execution environments with dynamic reconfiguration capabilities are needed to turn this vision into reality. This article provides an overview of applying the IEC 61499 reference model for distributed automation as basis for a standard-compliant reconfigurable method in industrial environments. It covers the modeling and engineering of reconfiguration applications and their execution on distributed embedded controllers using IEC 61499. This approach significantly increases engineering efficiency and reuse in component-based design of industrial automation and control applications. A special focus of this contribution is the discussion of implemented industrial use cases from the manufacturing, robotics and power systems domain.

Zero-Downtime Reconfiguration of Distributed Control Logic in Industrial Automation and Control

2012 ◽  
pp. 2024-2051
Author(s):  
Thomas Strasser ◽  
Alois Zoitl ◽  
Martijn Rooker
Keyword(s):  
Control Systems ◽  
New Technologies ◽  
Reference Model ◽  
Industrial Process ◽  
Control Logic ◽  
Control Applications ◽  
Automation And Control ◽  
Engineered Systems ◽  
And Control ◽  
Iec 61499

Future manufacturing is envisioned to be highly flexible and adaptable. New technologies for efficient engineering of reconfigurable systems and their adaptations are preconditions for this vision. Without such solutions, engineering adaptations of Industrial Process Measurement and Control Systems (IPMCS) will exceed the costs of engineered systems by far and the reuse of equipment will become inefficient. Especially the reconfiguration of control applications is not sufficiently solved by state-of-the-art technology. This chapter gives an overview of the use of reconfiguration applications for zero-downtime system reconfiguration of control applications on basis of the standard IEC 61499 which provides a reference model for distributed and reconfigurable control systems. A new approach for the reconfiguration of IEC 61499 based control application and the corresponding modeling is discussed. This new method significantly increases engineering efficiency and reuse in component-based IPMCS.

scholarly journals Joint analysis of refractions with surface waves: An inverse solution to the refraction-traveltime problem

Geophysics ◽  
2006 ◽  
Vol 71 (6) ◽  
pp. R131-R138 ◽  
Author(s):  
Julian Ivanov ◽  
Richard D. Miller ◽  
Jianghai Xia ◽  
Don Steeples ◽  
Choon B. Park
Keyword(s):  
Surface Wave ◽  
Surface Waves ◽  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Reference Model ◽  
Real Data ◽  
Joint Analysis ◽  
Basic Principles ◽  
Refraction Tomography

We describe a possible solution to the inverse refraction-traveltime problem (IRTP) that reduces the range of possible solutions (nonuniqueness). This approach uses a reference model, derived from surface-wave shear-wave velocity estimates, as a constraint. The application of the joint analysis of refractions with surface waves (JARS) method provided a more realistic solution than the conventional refraction/tomography methods, which did not benefit from a reference model derived from real data. This confirmed our conclusion that the proposed method is an advancement in the IRTP analysis. The unique basic principles of the JARS method might be applicable to other inverse geophysical problems.

Current Issues: Evidence-Based Practice for the Real World: Thoughts on Clinical Education in Communication Disorders

2010 ◽  
Vol 20 (3) ◽  
pp. 100-105 ◽  
Author(s):  
Anne K. Bothe
Keyword(s):  
Clinical Education ◽  
Real World ◽  
Evidence Based Practice ◽  
Communication Disorders ◽  
University Faculty ◽  
Evidence Based ◽  
Speech Language Pathology ◽  
Basic Principles ◽  
The Real ◽  
Language Pathology

This article presents some streamlined and intentionally oversimplified ideas about educating future communication disorders professionals to use some of the most basic principles of evidence-based practice. Working from a popular five-step approach, modifications are suggested that may make the ideas more accessible, and therefore more useful, for university faculty, other supervisors, and future professionals in speech-language pathology, audiology, and related fields.

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