Communication between computer and programmable controller plays a very import role in the control system of Product Line.
在该生产线的控制系统中，控制计算机与可编程控制器的通讯具有非常重要的作用。
2
CBTC is adopted for signal system of Xi 'an Subway Line 2, which is a complete and movable block train control system based on wireless communication technology.
西安地铁2号线信号系统采用完整的、基于无线通信技术的、移动闭塞制式的CBTC列车自动控制系统。
3
Topology construction of communication network, linecontrol of communication and the software design are mainly discussed.