摘要
随着现代工业系统的结构日益复杂化,在工业控制中PLC控制器往往需要与多台上位机设备建立通信连接。以安川MP系列控制器为例,阐述了与多台PC上位机建立连接的原理和实现。详细介绍了安川MP系列控制器基于多传送缓冲器通道机制通信的基本原理。提出采用MSG-RCV通信函数实现控制器与多台PC机通信的方法,并编程实现。对通信效率与控制器高速扫描周期之间的关系进行了分析和讨论。
With increasing complexity of the structure of modern industrial systems, PLC controllers used for industrial control often need to establish communication connection with several upper eomputers. Taking Yaskawa MP series controller as example, this paper describes the principle and implementation of the establishment of communication between it and several upper PCs, gives details about the basic principle of eommunication of Yaskawa MP series controller based on multiple conveyance buffer channel mechanism, and proposes adoption of MSG-RCV communication function to realize communication between the controller and PCs through programming. Furthermore, the relationship between communication effie.iency and the high-speed scanning period of the controller is also analyzed and discussed.
出处
《电气自动化》
2017年第2期19-21,28,共4页
Electrical Automation
