A-B 1336F-B200-AA-EN-L4 PLC自动化备件

A-B 1336F-B200-AA-EN-L4 PLC自动化备件

A-B 1336F-B200-AA-EN-L4 PLC自动化备件

PLC应用系统大致可以分为三类:集中式、远程式、分布式控制系统。

1.集中式控制系统

集中式控制系统是用一个PLC控制一台或多个被控设备，主要用于输入、输出点数较少，各被控设备所处的位置比较近，且相互间的动作有一定联系的场合。其特点是控制结构简单。

⒉远程式控制系统

PLC通过通信电缆与被控设备进行信息传递。远程式控制系统是指控制单元远离控制现场，该系统一般用于被控设备十分分散，或工作环境比较恶劣的场合。其特点是需要采用远程通信模块，提高了系统的成本和复杂性。

3.分布式控制系统

该系统多用于有多台被控设备的大型控制系统，其各被控设备之间有数据信息传送的场合。其特点是系统灵活性强

A-B 1336F-B200-AA-EN-L4 PLC自动化备件

PLC application system can be roughly divided into three categories: centralized, remote, distributed control system.

1. Centralized control system

The centralized control system uses a PLC to control one or more controlled devices, which is mainly used for occasions where the input and output points are less, the position of each controlled device is relatively close, and the action of each other has a certain connection. It is characterized by simple control structure.

⒉ Remote control system

The PLC transmits information to the controlled device through the communication cable. Remote control system refers to the control unit away from the control site, the system is generally used for the controlled equipment is very scattered, or the working environment is relatively harsh occasions. It is characterized by the need to use remote communication module, which increases the cost and complexity of the system.

3. Distributed control system

The system is mostly used in large control systems with multiple controlled devices, where data information is transmitted between each controlled device. It is characterized by strong system flexibility,