Question

哪位高手把这段中文翻译成英文 不要软件自动翻译过来的 谢谢

目前，PLC在国内外已广泛应用于钢铁、石油、化工、电力、建材、机械制造、汽车、轻纺、交通运输、环保及文化娱乐等各个行业，使用情况大致可归纳为如下几类。
开关量的逻辑控制
这是PLC最基本、最广泛的应用领域，它取代传统的继电器电路，实现逻辑控制、顺序控制，既可用于单台设备的控制，也可用于多机群控及自动化流水线。如注塑机、印刷机、订书机械、组合机床、磨床、包装生产线、电镀流水线等。
模拟量控制
在工业生产过程当中，有许多连续变化的量，如温度、压力、流量、液位和速度等都是模拟量。为了使可编程控制器处理模拟量，必须实现模拟量（Analog）和数字量（Digital）之间的A/D转换及D/A转换。PLC厂家都生产配套的A/D和D/A转换模块，使可编程控制器用于模拟量控制。
运动控制
PLC可以用于圆周运动或直线运动的控制。从控制机构配置来说，早期直接用于开关量I/O模块连接位置传感器和执行机构，现在一般使用专用的运动控制模块。如可驱动步进电机或伺服电机的单轴或多轴位置控制模块。世界上各主要PLC厂家的产品几乎都有运动控制功能，广泛用于各种机械、机床、机器人、电梯等场合。
过程控制
过程控制是指对温度、压力、流量等模拟量的闭环控制。作为工业控制计算机，PLC能编制各种各样的控制算法程序，完成闭环控制。PID调节是一般闭环控制系统中用得较多的调节方法。大中型PLC都有PID模块，目前许多小型PLC也具有此功能模块。PID处理一般是运行专用的PID子程序。过程控制在冶金、化工、热处理、锅炉控制等场合有非常广泛的应用。

Answer 1

At present, has been widely applied in PLC steel, petroleum, chemical industry, electric power, building materials, machinery manufacturing, automotive, textile, transportation, environmental protection, and cultural entertainment industries, using general can be summed up as follows several types.
The logic control switch quantity
This is the most fundamental and most extensive PLC application domain, it is replacing the traditional relay circuit, realize logic control, sequence control, which can be used for the control of a single device, can also be used to control and automation line more machines. Such as injection molding machine, printing machine, a stapler, combination machine tools, grinding spurt, packaging production line, electroplating line etc.
Analog control
In industrial production process, there are many changes, such as temperature, pressure, and flow, liquid level and speed are simulated. In order to make the programmable controller processing Analog, must realize Analog/Digital and Analog to produce stats () () of Digital between the A/D conversion and D/A transformation. PLC manufacturer production supporting the A/D and D/A conversion module, make the programmable controller for analog control.
Exercise control
PLC can be used in circular motion or linear motion control. From control configuration, early directly to switch I/O modules connected position sensor and actuator, now generally use special movement control module. If can drive stepping motor servo motor or the uniaxial or multi-axis position control module. The world of major PLC control functions are almost, widely used in all kinds of machinery, machine tool, robots, elevator, etc.
Process control
Refers to the process control of temperature, pressure, and flow rate analog closed-loop control. As industrial controlling computer, PLC can prepare all kinds of control algorithm procedures, complete closed-loop control. The PID closed-loop control system is usually USES morer adjustment methods. There are large and medium-sized PLC, many small PID module has the function of PLC module. PID processing is generally run special PID subroutines. Process control in metallurgy, chemical, heat treatment, so there is widely used.

Answer 2

At present, PLC at home and abroad, has been widely used in iron and steel, petroleum, chemical, electric power, building materials, machinery manufacturing, automobile, textile, transportation, environmental protection and cultural entertainment and other industries, the use can be broadly divided into the following categories.
The logic control switch
PLC which is the most fundamental and wide-ranging applications, which relay to replace the traditional circuits, the realization of the logic of control, order control, equipment can be used for a single control group can also be used for multi-line control and automation. Such as injection molding machines, printing presses, Protocol machinery, modular machine tools, grinding machines, packaging production line, assembly line, such as electroplating.
Analog Control
In the industrial production process, there are many changes in the amount of continuous, such as temperature, pressure, flow, level and speed are all analog. In order to deal with analog programmable controller, the need for analog (Analog) and Digital (Digital) between the A / D conversion and D / A conversion. PLC manufacturers are supporting the production of the A / D and D / A converter module, so that the programmable controller used to simulate the volume control.
Motion Control
PLC can be used in a circular motion or linear motion control. From the control configuration, the early switch directly to I / O modules to connect the location of sensors and the executing agency, is now generally use a dedicated motion control module. Such as stepper motor or servo-driven single-axis or multi-axis motor control module location. PLC world's major manufacturers of products that almost every motion control functions, a wide variety of machinery, machine tools, robots, elevators and so on.
Process Control
Process control refers to the temperature, pressure, flow volume of the closed-loop control simulation. For industrial control computer, PLC to the preparation of a wide range of process control algorithm to complete the closed-loop control. PID regulation of a general closed-loop control system with a lot of adjustment methods. PLC have a large and medium-sized PID modules, many small PLC module also has this feature. PID operation processing is PID-specific subroutines. Process control in metallurgy, chemical industry, heat treatment, boilers, control and so on have a very wide range of applications.

Answer 3

At present, PLC spins in already having applied to iron and steel , petrochemical industry, electric power , building material , machinofacture , automobile broadly , making light of at home and abroad , traffic , environmental protection reach culture entertainment and so on industry , usage condition are summed up as one by one basically for resembling as follows almost.

The amounts logics control a switch

This is fundamental , the broadest PLC application field , it substitutes the tradition relay circuit , the logic controls , order controls realization, charge reaching the automation production line now that controlling may be used for Shan platform equipment, also may be used for many fleets. If the injection machine , the printing machine, subscribe a book, machinery, constitutes machine tool , grinder , package production line , electroplating production line etc.

Simulation amounts are controlled

In industry, procedure of production amounts having a lot of continuous change in the middle,if the temperature , pressure , rate of flow , liquid place and speed etc. all are to simulate amounts. Change for making programming controller handle A/D between the amounts (Analog) and figure amount (Digital) simulating amounts , realizing a simulation be obliged to changing reaching D/A. Supporting A/D and D/A the PLC manufacturer is all produced changes a module , the amounts messenger programming controller be used to simulate control.

Motion is controlled

Can be used for circling motion or rectilinear motion of PLC controlling. From that control organ allocation comes, direct be used for I/O early phase switch amounts modules link location sensor and actuating mechanism , use special-purpose motion under the control of module like now. If may drive step-by-step electric motor or the servo electric motor, single axis or polyaxis location controls a module. Every product of main PLC manufacturer controls almost It both moves a function in the world , is used for occasion such as various machinery , machine tool , robot , electric elevator broadly.

Process control

Process control is to refer to the closed cycle under the control of simulating amounts's to the temperature , pressure , rate of flow etc.Can weave the all kinds of control algolithm program , accomplish closed cycle under the control of as industrial control computer , PLC. That PID is adjusted is that general closed cycle navar is so useful as to adjust method comparatively muchly. Big medium-sized PLC It both PID module, at present a lot of minitype PLC also has this function module. That PID handles a sort is to run the special-purpose PID functional element program. Process control has applying very broadly in occasion such as metallurgy , chemical industry , heat treatment , boiler under the control of.