A tool for trace visualization and offline debugging of PLC applications

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012) Pub Date : 2012-09-01 DOI:10.1109/ETFA.2012.6489785

R. Berger, Herbert Prähofer, Christian Wirth, Roland Schatz

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引用次数: 5

Abstract

This paper describes a tool for offline debugging and trace visualization of PLC applications. Based on trace data obtained by a deterministic replay technology for multi-threaded Soft PLC applications, the tool allows visualizing an application run in its various aspects and on various levels of abstraction. Each view shows a different level of detail, allowing the user to dive into the program from high-level views showing abstract program behavior to low-level views showing each executed statement or variable value in detail. With a set of views the tool supports the user to get an overview of the program execution, to identify abnormal program behavior, to discover the causes for program failures, and finally to locate defects in the source code. The paper presents the conceptional background of the approach, shows how program runs can be visualized, and how they can be analysed in detail. Then it demonstrates how the the tool supports a debugging process by an illustrative example.

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跟踪可视化和离线调试PLC应用程序的工具

本文介绍了一种用于PLC应用脱机调试和跟踪可视化的工具。基于多线程软PLC应用程序的确定性重放技术获得的跟踪数据，该工具允许可视化应用程序在各个方面和各个抽象级别上的运行。每个视图显示不同级别的详细信息，允许用户从显示抽象程序行为的高级视图深入到详细显示每个执行语句或变量值的低级视图。通过一组视图，该工具支持用户获得程序执行的概览，识别异常的程序行为，发现程序失败的原因，并最终定位源代码中的缺陷。本文介绍了该方法的概念背景，说明了如何将程序运行可视化，以及如何对程序运行进行详细分析。然后通过一个说明性示例演示了该工具如何支持调试过程。

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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Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012)

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