Factory Acceptance Testing should involve customer's experts and knowledge in defining, reading and validating tests, while keeping labor costs at moderate level. This involvement requires a testing approach, whic...
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ISBN:
(纸本)9781479948451
Factory Acceptance Testing should involve customer's experts and knowledge in defining, reading and validating tests, while keeping labor costs at moderate level. This involvement requires a testing approach, which hides implementation details and emphasizes domain terminology. Keyword driven testing is seen a viable test automation solution to reduce cost and enable customer involvement in acceptance testing. We propose an approach for adaptation of Keyword driven testing framework to IEC 61131-3 industrial process control applications. It utilizes importing of application elements, presented with plcopen xml, and transforming them to proxy objects to be used as variables in test code, with domain specific names. Benefits include simplification of test and keyword specifications and hiding of implementation details from testers.
The growing complexity of industrial automation demands the adoption of software engineering principles for improving the development process of control systems. This paper presents a methodological approach to the de...
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The growing complexity of industrial automation demands the adoption of software engineering principles for improving the development process of control systems. This paper presents a methodological approach to the design and development of complex automation systems relying on model-driven engineering (MDE). A benefit of this approach is the integration of methods and techniques widespread within the automation discipline with modern MDE techniques guiding the designer through the development phases. A second advantage is to add flexibility enough to adapt the steps to the needs of the system under design. Finally, the architecture presented is prepared to be adapted to methodology extensions to cover other aspects of automation systems. The framework is based on domain models that are defined through the development phases using the terminology of the automation field. Using model transformations both documentation about system analysis and design and the skeleton of software units are automatically generated. A proof-of-concept tool has been developed that has been tested on the design of medium-complexity projects to assess the impact of its use with respect to project documentation and maintenance. Note to Practitioners-Control software development can be considered one of the challenges in automation field for achieving leadership in the future economic market. This work presents a model-driven engineering-based approach making use of both automation and software engineering methods and techniques for developing automation control systems. The framework implements the methodology for industrial automation systems (MeiA center dot) for guiding developers through the development phases and generates the analysis and design documentation using domain terminology, the design documentation that involves the minimal units of design, and the program organization units in one-to-one correspondence with the minimal units of design. From a practical point of view, it sh
Modern industrial processes have grown to be increasingly complex and their development is under tighter time and resource constraints. During the design lifecycle, the handover between process design and automation e...
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ISBN:
(纸本)9781728103037
Modern industrial processes have grown to be increasingly complex and their development is under tighter time and resource constraints. During the design lifecycle, the handover between process design and automation engineering is a critical step. This paper presents a standards-driven method for supporting the design to automation continuum. The source data format is ISO 15926 Proteus xml. Automation software describing control loops, alarms and interlocks are added as generic attributes in the Instrumentation Loop Function of the Proteus file. The target format is plcopen xml for TEC 611313 based automation software. Control software code, global variables and the main program declarations and body, is auto-generated and defines the basic structure of the automation application. The standards-based method is compared with an applied approach based on state-of-the-art tools used by the industry.
Model checking methods have been proven to be a valuable asset for identifying undesired behaviour of safety-critical Instrumentation and Control (I&C) logics. Their application in the nuclear domain has been very...
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ISBN:
(纸本)9781728154145
Model checking methods have been proven to be a valuable asset for identifying undesired behaviour of safety-critical Instrumentation and Control (I&C) logics. Their application in the nuclear domain has been very successful and has triggered significant interest from the safety community. Creating formal models from the diagrams found on paper or from digital formats without the needed semantics is one bottleneck that hinders the adoption of model checking due to costs in time and may introduce errors. This paper proposes a methodology for the creation of formal models from I&C diagrams drawn in generic modelling tools (lacking specific I&C semantics). The generic I&C logic diagram is transformed into an intermediate UML model that in turn can be transformed to other target formats like IEC 61131 plcopen xml I&C software or NuSMV formal model code. This methodology is demonstrated with a typical example of a trip signal generator application logic. This application logic is drawn in MS Visio, it is transformed to an I&C model in UML with the needed properties for model checking, then to IEC 61131 plcopen xml and to an input file for the NuSMV model checker.
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