摘要
介绍了在VB语言中利用S7 0PC Server访问WinCC中的数据并通过RS-232将开关量传送到报 警控制箱DSR32B,然后经HD-MX2560巨型音视频切换矩阵实现对生产现场的实时监控和报警的方 法;重点叙述了自行设计的某卷烟厂报警系统的通信协议和通信程序;半年多的运行表明,客户端利用 OPC访问服务器兼容性强,上位机与下位机的通信稳定可靠,使用方便。
The method that in VB language we can use S7 OPC Server to access the data of WinCC and send the digital tags to the alarming control box DSR32B through RS-232 is introduced. Based on monitoring system of cigarette factory, communication protocol and communication program are described. Through the half-year operation, it is compatible by using OPC to access the and slave computer is stable and convenience. server, and the communication between host computer
出处
《测控技术》
CSCD
2005年第11期50-52,共3页
Measurement & Control Technology
