González Isaías, Calderón Antonio José, Mejías Andrés, Andújar José Manuel
Department of Electrical Engineering, Electronics and Automation, University of Extremadura, Avenida de Elvas, s/n, Badajoz 06006, Spain.
Department of Electronic, Computer Science and Automation Engineering, University of Huelva, Escuela Técnica Superior, Crta. Huelva-Palos de la Fra, Palos de la Fra, Huelva 21919, Spain.
Sensors (Basel). 2016 Oct 31;16(11):1822. doi: 10.3390/s16111822.
In this paper the design and implementation of a network for integrating Programmable Logic Controllers (PLC), the Object-Linking and Embedding for Process Control protocol (OPC) and the open-source Easy Java Simulations (EJS) package is presented. A LabVIEW interface and the Java-Internet-LabVIEW (JIL) server complete the scheme for data exchange. This configuration allows the user to remotely interact with the PLC. Such integration can be considered a novelty in scientific literature for remote control and sensor data acquisition of industrial plants. An experimental application devoted to remote laboratories is developed to demonstrate the feasibility and benefits of the proposed approach. The experiment to be conducted is the parameterization and supervision of a fuzzy controller of a DC servomotor. The graphical user interface has been developed with EJS and the fuzzy control is carried out by our own PLC. In fact, the distinctive features of the proposed novel network application are the integration of the OPC protocol to share information with the PLC and the application under control. The user can perform the tuning of the controller parameters online and observe in real time the effect on the servomotor behavior. The target group is engineering remote users, specifically in control- and automation-related tasks. The proposed architecture system is described and experimental results are presented.
本文介绍了一种用于集成可编程逻辑控制器（PLC）、过程控制对象链接与嵌入协议（OPC）和开源简易Java模拟（EJS）软件包的网络的设计与实现。一个LabVIEW接口和Java-Internet-LabVIEW（JIL）服务器完善了数据交换方案。这种配置允许用户与PLC进行远程交互。对于工业工厂的远程控制和传感器数据采集而言，这种集成在科学文献中可被视为一种创新。开发了一个用于远程实验室的实验应用，以证明所提方法的可行性和益处。即将进行的实验是对直流伺服电机模糊控制器进行参数化和监控。图形用户界面是用EJS开发的，模糊控制由我们自己的PLC执行。事实上，所提新型网络应用的显著特点是集成了OPC协议，以便与PLC和受控应用共享信息。用户可以在线执行控制器参数的调整，并实时观察对伺服电机行为的影响。目标群体是工程远程用户，特别是在与控制和自动化相关的任务方面。描述了所提的架构系统并给出了实验结果。
