Closed-loop determinism for non-deterministic environments: Verification for IEC 61499 logic controllers

Lindsay V. Allen, K. M. Goh, D. Tilbury
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引用次数: 5

Abstract

Verification of logic controllers can identify errors during the design stage so they can be remedied and prevent some faults from occurring once the system is running. Input order robustness is the property that multiple inputs arriving in a variety of orders, and regardless of the order, produce the same set of outputs and same final state. Verifying this property ensures determinism of the closed-loop system even if the environment is non-deterministic. Because use of the IEC 61499 standard for distributed control is becoming more widespread, we present the application of input order robustness verification to controllers implemented in this formalism. Open issues with IEC 61499 execution semantics are presented and discussed in relation to input order robustness verification.
非确定性环境的闭环确定性:IEC 61499逻辑控制器的验证
逻辑控制器的验证可以在设计阶段识别错误,以便对其进行补救,并防止系统运行后出现一些错误。输入顺序稳健性是指多个输入以各种顺序到达,并且无论顺序如何,都会产生相同的输出集和相同的最终状态的属性。验证此属性可确保闭环系统的确定性,即使环境是非确定性的。由于IEC 61499标准在分布式控制中的应用越来越广泛,我们提出了输入顺序鲁棒性验证在这种形式下实现的控制器中的应用。提出并讨论了与输入顺序鲁棒性验证相关的IEC 61499执行语义的开放问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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