结合Modbus TCP的LabVIEW虚拟进程现场总线控制系统

2019 9th IEEE International Conference on Control System, Computing and Engineering (ICCSCE) Pub Date : 2019-11-01 DOI:10.1109/ICCSCE47578.2019.9068540

S. Mangkalajan, W. Koodtalang, T. Sangsuwan, Noppadol Pudchuen

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引用次数: 1

摘要

本文结合Modbus TCP协议，利用LabVIEW设计并实现了现场总线控制系统(FCS)中的虚拟进程。在NI输入/输出宽(NI - myDAQ)支持的LabVIEW中模拟了一个电平虚拟过程，提供0-5V模拟输入和输出信号。它用于控制执行器和从模拟过程的传感器读取数据。集成以太网屏蔽的Arduino宽带是Modbus TCP/电压转换器，在可编程逻辑控制器(PLC)之间传输数据，PLC充当客户端和Arduino服务器。因此，虚拟过程可以由真实的PLC控制，也可以由真实的监控系统通过TCP/IP网络进行监控。实验结果表明，各设备之间的数据通信良好。两种方法的平均绝对百分比误差小于5.24%。此外，该模型具有灵活性强、成本低等特点。因此，它适用于教学和培训。

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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Virtual Process Using LabVIEW in Combination with Modbus TCP for Fieldbus Control System

This paper presents a design and implementation of virtual process using LabVIEW in combination with Modbus TCP protocol for fieldbus control system (FCS). A level virtual process has been simulated in LabVIEW supported by NI input/output broad (NI - myDAQ), providing the 0-5V analog input and output signals. It is used to control actuators and to read data from sensors of the simulated process. Arduino broads incorporated with Ethernet shields are the Modbus TCP/voltage converter, communicating the data between programmable logic controller (PLC) that acts like a client and Arduino servers. Therefore, the virtual process can be controlled by the real PLC, and can be monitored by the real monitoring system over TCP/IP network. The experimental results show that the data communication among all devices works well. The mean absolute percentage error between both processes is less than 5.24%. In addition, the proposed model is very flexible and low cost. Hence, it is suitable for teaching and training.

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来源期刊

2019 9th IEEE International Conference on Control System, Computing and Engineering (ICCSCE)

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