介绍项目改造过程中,使用德国西门子公司PLC S7-400H冗余系统与Wincc V7.2改造原有项目,分别从硬件和软件两个方面进行比较详细的描述,改造后系统运行稳定,并对基于SCADA系统发展建设企业生产数据信息化构建企业工业4.0云数据进行初步探索。 Introduction Project transformation process, the use of the German Siemens PLC S7-400H redundant system and Wincc V7.2 transformation of the original project, respectively, from the hardware and software aspects of a more detailed description of the system after the transformation stable operation, and based on the SCADA system development and construction of enterprise production data and information technology to build Enterprise 4.0 cloud data to conduct a preliminary exploration.