850040060P 欧美备件 DCS系统 PLC模块 俄罗斯工业

850040060P 欧美备件 DCS系统 PLC模块 俄罗斯工业

从开关量控制发展到顺序控制、运送处理，是从下往上的。  连续PID控制等多功能，PID在中断站中。  

可用一台PC机为主站，多台同型PLC为从站。  也可一台PLC为主站，多台同型PLC为从站，构成PLC网络。

这比用PC机作主站方便之处是：有用户编程时，不必知道通信协议，只要按说明书格式写就行。  PLC网格既可作为独立DCS/TDCS，也可作DCS/TDCS的子系统。

From the switch volume control to the sequence control, transport processing, from the bottom up. Continuous PID control and other functions, PID in the interrupt station.

A PC can be used as the main station, and multiple PLCS of the same type are the secondary stations. A PLC can also be the main station, and several PLC of the same type can be the slave station to form a PLC network.

This is more convenient than using a PC as the main station: when there is user programming, you do not have to know the communication protocol, as long as it is written in instruction format. PLC grid can be used as an independent DCS/TDCS or as a subsystem of DCS/TDCS.