【摘要】 结合冷水机组监控系统,文中介绍基于PLC的系统的硬件组成和软件功能,以VisualBasic为开发工具,实现上位机与PLC之间的通信。更多还原

【Abstract】 Combining the cold-water machine supervision system,the hardware configuration and software function of the system based on PLC are introduced in this paper. To realize the communication between the master station and PLC,a program is developed using VB software.更多还原