ABB V17152-310 智能变送器模块 DCS系统

ABB V17152-310 智能变送器模块 DCS系统

ABB V17152-310 智能变送器模块 DCS系统

1、 算术逻辑运算单元ALU(Arithmetic and Logic Unit)

ALU主要完成对二进制数据的定点算术运算(加减乘除)、逻辑运算(与或非异或)以及移位操作。在某些CPU中还有专门用于处理移位操作的移位器。

通常ALU由两个输入端和一个输出端。整数单元有时也称为IEU(Integer ExecuTIon Unit)。我们通常所说的“CPU是XX位的”就是指ALU所能处理的数据的位数。

2、 浮点运算单元FPU(FloaTIng Point Unit)

FPU主要负责浮点运算和高精度整数运算。有些FPU还具有向量运算的功能，另外一些则有专门的向量处理单元。计算机系统的硬件结构主要由四部分组成：控制器、运算器、内存和输入输出设备，其中，控制器和运算器统称为中央处理器。简称CPU.它是计算机硬件系统的指挥中心.它包括控制器和运算器两个部件,其中,控制器的功能是控制计算机各部分协调工作,运算器则是负责计算机的算术运算和逻辑运算。

ABB V17152-310 智能变送器模块 DCS系统

ALU(Arithmetic and Logic Unit) ALU(Arithmetic and Logic Unit)

ALU mainly performs fixed-point arithmetic operations (addition, subtraction, multiplication and division), logical operations (and or non-XOR) and shift operations on binary data. There are also shifters in some cpus specifically designed to handle shift operations.

Typically, an ALU consists of two inputs and one output. Integer ExecuTIon units are sometimes called IEUs (Integer Execution Units). We usually say that "the CPU is XX bits" refers to the number of bits of data that the ALU can process.

2. FloaTIng Point Unit (FPU)

FPU is mainly responsible for floating point arithmetic and high precision integer arithmetic. Some Fpus also have vector computing capabilities, while others have specialized vector processing units. The hardware structure of the computer system is mainly composed of four parts: controller, arithmetic, memory and input and output equipment, among which the controller and arithmetic are collectively referred to as the central processor. It is the command center of the computer hardware system. It includes controller and arithmetic two parts, in which the function of the controller is to control the coordination of all parts of the computer, arithmetic is responsible for the computer arithmetic and logic operations.