摘要
在控制系统的设计和实施过程中，经常会碰到不同PLC主处理器之间相互通讯的问题，在配置有上层通讯系统（如以太网）时，这个矛盾并不突出．但是如果要求不同的PLC之间必须在控制层上实现数据通讯的话，那么情况就复杂了。针对一个实施项目中要求不同PLC之间相互通讯的情况进行实验，力求在这方面有所突破。
In the design and implementation process of control system, the data communication between every processor of the different PLCs always exists. The above said problem does not stand out when an upper-level communication system （such as an Ethernet） has been configured, However, the circumstance becomes complicated as if the system requires that the data communication between the different PLCs must be realized in a same control level. As for this problem the author makes an experiment, a breakthrough is expected.
出处
《自动化信息》
2006年第6期44-45,59,共3页
Automation Information
