Description
数据公路是否能支持由其它制造厂生产的硬件（可编程序控制器、计算机、数据记录装置等）。
为保证通信的完整，大部分DCS厂家都能提供冗余数据公路。
为了保证系统的安全性，使用了复
杂的通信规约和检错技术。所谓通信规约就是一组规则，用以保证所传输的数据被接收，并且被理解得和发送的数据一样。
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