外文翻译应用于电气系统的可编程序控制器文档格式.docx

1、外文原文Programmable Controller Designed forElectro-pneumatic SystemsSummary this item is mainly the procedure which studies electricity system and in brief valid control current of air to launch machine to compatibly flow the appearance of system. It of the fulfillment foundation include according to t

2、he control procedure of particularly have of the current of air controller, automation design, current of air system and design according to the electronics of the tiny controller.1. Brief introductionThe automation which uses an electricity technique mainly constitutes to. from 3 part: Launch machi

3、ne or motor, sensor or button, the form is zero partses such as the control of flower petal. Now, greatly part of system logic the controllers of the operation drive all procedure logic controller （PLC） replace. PLC sensor and switchs aring an importation to carry, but launch the direct control valv

4、e of machine is an exportation to carry and have an internal procedure to operate among them all circulate essential logic, imitate other devices like calculator, in fixed time machine etc., carry on a control to the whole movement appearance of system.Can according to need numerous time to establis

5、h and imitate thus of system, so all from PLC usage, this item contains vivid advantage. Therefore can save time, the danger of decrease error, in the meantime under the sistuation that use same material, it can be getting more precise.Many company that is on the market used the PLC of normal regula

6、tions and it can not only control with the current of air system, but also can use various electricity equipments. PLC wide range of application, can be apply in much industry to produce medium, even used for safety and automation of building in.Because of above various characteristic, the PLC provi

7、ded a lot of resourceses in somely physically appliedly, even include not a resources of control the system and the electricity system was a kind of application like this.For the engineering of automation, the PLC usage is more expensive, particularly is to those small scaled systems.Aim at this kin

8、d of circumstances a kind of viable way establish a controller that can provide particular size and function. This kind of controller can create according to the tiny controller.This kind of applies scope according to the tiny controller smaller, the machine that can used for a type perhaps can use

9、to do a be like the common PLC is similar and can be woven a distance of controller, so it can pass variable turn of logic procedure to carry on various homework. All of these characteristic basis concrete demand of dissimilarity but dissimilarity, concrete of design of empirical of dissimilarity bu

10、t dissimilarity. But the main advantage of this kind of design lie in designing a personnel to understand an own controller very much, can freely control the big baby size of controller, change it of function. This means that this item contains more special, but in the meantime the control of system

11、 also from it of design control.2. Electricity systemPeople can find out to speak of in three preceding contexts from an automation of basic parts, the in addition is a logic circuit which controls system. The technique of only mature forerunner cans make a particular logic circuit and performance t

12、he parts that exactitude need when operate to get stripe.For a simple sport, the system auto procedure can complete, but for indirect or more complicated sport, the procedure of system will produce complicated circuit and false signal. This is need another method can save time, produce clear circuit

13、, can keep accidental signal from hand over fold to stop with circuit.The line roadbed method of different standard of this kind of way call follow the sequence and advance gradually type or rule system, it to the current of air and the electricity system very valid, and is also a foundation of this

14、 item. It include according to launch the system of foundation that the machine appearance each dissimilarity variety establish.The square one is each circuit that the step designs those kinds of standards. The second step is a conjunction to receive to come from sensor and the switch sends the air

15、or the fax to the supply line of each step in the meantime with previous sport signal. If show in the diagram, 1 with 2 standard circuits is a current of air of with the electricity system serve. We can know very much of see each one step suddenly with the contact of the of next step.3. The applied

16、principle of controller inner partThe above-mentioned method can make each sport of launch the machine nicely defined with the step. This be also a new appearance which says that the every sport varieties of launch the machines are systems, but the change of of two different appearances be called a step.The standard circuit which speaks of in times before can the in aid of design personnel define different appearance different