P0926CP工控产品自动化备件PLC模块DCS模块

P0926CP工控产品自动化备件PLC模块DCS模块

P0926CP工控产品自动化备件PLC模块DCS模块

控制器是指按照预定顺序改变主电路或控制电路的接线和 改变电路中电阻值来控制电动机的启动、调速、制动与反向的主令装置。控制器由程序状态寄存器PSR，系统状态寄存器SSR， 程序计数器PC，指令寄存器等组成，其作为“决策机构”，主要任务就是发布命令，发挥着整个计算机系统操作的协调与指挥作用。

 控制的分类主要包括两种，分别为组合逻辑控制器、微程序控制器，两个部分都有各自的优点与不足。

其中组合逻辑控制器结构相对较复杂，但优点是速度较快；微程序控制器设计的结构简单，但在修改一条机器指令功能中，需对微程序的全部重编。

P0926CP工控产品自动化备件PLC模块DCS模块

The controller refers to the main command device that changes the wiring of the main circuit or control circuit and changes the resistance value in the circuit to control the start, speed regulation, braking and reverse of the motor in accordance with the predetermined sequence. The controller is composed of program state register PSR, system state register SSR, program counter PC, instruction register, etc. As a "decision mechanism", its main task is to issue commands and play a role in the coordination and command of the entire computer system operation.

The classification of control mainly includes two kinds, namely, combinatorial logic controller and microprogram controller, both of which have their own advantages and disadvantages.

The structure of combinatorial logic controller is relatively complex, but the advantage is that the speed is fast. The design of microprogram controller is simple in structure, but in modifying a machine instruction function, the whole microprogram needs to be reprogrammed.