銷售產(chǎn)品：進(jìn)口DCS、PLC控制系統(tǒng)備品備件和大型進(jìn)口系統(tǒng)模塊備件公司
1.Allen-Bradley(美國AB)系列產(chǎn)品》
2.Schneider(施耐德電氣)系列產(chǎn)品》
3.General electric(通用電氣)系列產(chǎn)品》
4.Westinghouse（美國西屋）系列產(chǎn)品》
5.SIEMENS(西門子系列產(chǎn)品)》
6.銷售ABB Robots. FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、Panasonic、Robots、MOTOMAN Robots。
7.estinghouse（西屋）： OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
8.Invensys Foxboro（?？怂共_）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場輸入/輸出模塊）順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)據(jù)通信及處理等。Invensys Triconex: 冗余容錯控制系統(tǒng)、基于三重模件冗余（TMR）結(jié)構(gòu)的zui現(xiàn)代化的容錯控制器。
9.Siemens(西門子)：Siemens MOORE， Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。
10.Bosch Rexroth（博世力士樂）：Indramat，I/O模塊,PLC控制器,驅(qū)動模塊等。
◆Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。采購美國、德國、法國、意大利等歐盟工控產(chǎn)品、備品備件
very large, and the products with obvious price advantages (mainly refer to centrifugal blowers and general-purpose centrifugal and axial compressors), and high-tech industries and newly developed high-tech products (mainly refers to centrifugal compressors for ethylene plants with a capacity of more than 600000 tons, natural gas pipeline transmission compressors, high-pressure oil field gas injection compressors and compressors for large air separation units) , it is not competitive. In the ber case, the impact will be small after the market is opened. However, the enterprises producing such products should have a sense of urgency, focus on improving the development and innovation ability, improve the technical content and grade of products, and narrow the gap with foreign countries. In the latter case, it will be greatly impacted after the market is opened. ② generally used Small and medium-sized ventilators in transit are the vast majority of products in the fan industry, belonging to large quantities and a wide range of products. It is equivalent to the situation mentioned above that the products have low cost and price advantage. After China&＃39;s accession to the WTO, it will be conducive to expanding exports, and the opening of the domestic market basically does not pose a threat. For example, the world&＃39;s more famous Fan enterprises are mainly German TLT company Among them, Shanghai Blower Factory Co Ltd. has introduced German TLT technology, Shenyang Blower Factory has introduced Danish novenko technology, Chengdu electric machinery factory and Shenyang Blower Factory have introduced German k.k.k technology, and British Haodeng company has established a wholly-owned enterprise in China Enterprises have already participated in the domestic fan market competition. From the price comparison of such products, taking the prices of Japanese manufacturers as an example, the prices of Japanese manufacturers&＃39; fans are now twice that of domestic fans. After China&＃39;s accession to the WTO, the tariffs have been reduced, but their prices are still 50% ~ 60% higher than those of domestic products. This shows that such products will not be competitive after China&＃39;s accession to the WTO It
公司服務(wù)宗旨：為客戶創(chuàng)造利益，創(chuàng)造價值，滿意是我 們服務(wù)的宗旨，您的信賴是我們永遠(yuǎn)的追求！
實際的物理量，除了開關(guān)量、模擬量，還有運動控制。如機床部件的位移，常以數(shù)字量表示。運動控制，有效的辦法是NC，即數(shù)字控制技術(shù)。這是50年代誕生于美國的基于計算機的控制技術(shù)。當(dāng)今已很普及，并也很完善。目前，先進(jìn)的金屬切削機床，數(shù)控化的比率已超過40%～80%，有的甚至更高。PLC也是基于計算機的技術(shù)，并日益完善。PLC可接收計數(shù)脈沖，頻率可高達(dá)幾k到幾十k赫茲，可用多種方式接收這脈沖，還可多路接收。有的PLC還有脈沖輸出功能，脈沖頻率也可達(dá)幾十k，有了這兩種功能，加上PLC有數(shù)據(jù)處理及運算能力，若再配備相應(yīng)的傳感器(如旋轉(zhuǎn)編碼器)或脈沖伺服裝置，則完全可以依NC的原理實現(xiàn)種種控制。高、中檔的PLC，還開發(fā)有NC單元，或運動單元，可實現(xiàn)點位控制。運動單元還可實現(xiàn)曲線插補，可控制曲線運動。
1、For switching quantity control
The ability of PLC to control the switching quantity is very strong. The number of points controlled in and out, less than a dozen points, dozens of points, more can be hundreds, thousands, or even tens of thousands of points, because it can be networked, the number of points is almost unlimited, no matter how many points can be controlled, the logic of the control can be a variety of issues: combination, timing, instant, delay, no counting, the need to count, fixed order, random work, etc., can be carried out.
The hardware structure of the PLC is variable and the software program is programmable, which is very flexible when used for control. Multiple sets or groups of programs can be written when necessary and called as needed. It is very adaptable to the industrial site multiple conditions, multiple state transbation needs.
PLC for switching control is a lot of examples, bllurgy, machinery, light industry, chemical industry, textile, etc., almost all industrial industries need to use it. At present, the goal of the first PLC, but also other controllers can not be compared with it, is that it can be easily and reliably used for switching control. 2, for analog control
Analog quantities, such as current, voltage, temperature, pressure, etc., its size is continuously changing. Industrial production, especially the continuous production process, often to control these physical quantities.
As an industrial control electronics, PLC can not control these quantities, it is a major deficiency, for which the PLC manufacturers are in this area for a lot of development. At present, not only large, medium-sized machine can be analog control, is a small machine, can also be such control. PLC for analog control, to be configured with analog and digital conversion of the A / D, D / A unit. It is also the I/O unit, but it is a special I/O unit.
A/D unit is the analog quantity of the external circuit, converted into digital quantity, and then sent to the PLC; D/A unit, is the digital quantity of the PLC into analog quantity, and then sent to the external circuit. As a special I/O unit, it still has the characteristics of I/O circuit anti-interference, internal and external circuit isolation, and b and output relays (or internal relays, which is also a zone of PLC working memory, can read and write) to exchange inbation and so on.
Here the A in the A/D, mostly current, or voltage, but also temperature. the A in the D / A, mostly voltage, or current. Voltage, current change range is mostly 0 ~ 5V, 0 ~ 10V, 4 ~ 20mA, some can also handle positive and negative values. Here the D, small machines are mostly 8-bit binary numbers, medium and large are mostly 12-bit binary numbers. a / d, d / a single, there are also multiple. Multiplex accounts for more b and output relays. With A/D, D / A unit, the rest of the processing are digital, which is not difficult for PLC with inbation processing capabilities. Medium and large PLC processing power is stronger, not only can be digital addition, subtrb, multiplication, division, but also open square, interpolation, but also floating point operations, some have PID instructions, can be the deviation of the system amount of proportional, differential, integral operations, and then produce the corresponding output, the computer can calculate almost all of it can calculate.
In this way, the use of PLC to achieve analog control is entirely possible.
PLC for analog control, and A/D, D / A combination of units together, and the use of PID or fuzzy control algorithms to achieve control, you can get a very high quality of control. The advantage of using PLC for analog control is that in the analog control at the same time, the switch can also be controlled. This advantage is that other controllers do not have, or control is not as convenient as the implementation of PLC. Of course, if the system is purely analog, the use of PLC may be in the perbance to price ratio is not as good as the use of regulators.
3, for motion control
The actual physical quantities, in addition to switching, analog, and motion control. Such as the displacement of machine parts, often expressed in digital quantities. Motion control, an effective approach is NC, that is, digital control technology. This is a computer-based control technology born in the United States in the 1950s. Today has been very popular, and also very well. At present, advanced bl cutting machine tools, the rate of NC has been more than 40% to 80%, and some even higher. PLC is also based on computer technology, and increasingly perfect. PLC can receive counting pulses, the frequency can be as high as a few k to tens of k Hz, available in a variety of ways to receive the pulse, but also multiplexed reception. Some PLC and pulse output function, pulse frequency can also reach tens of k, with these two functions, coupled with the PLC has data processing and computing capabilities, if equipped with the corresponding sensors (such as rotary encoders) or pulse servo device, it can be fully in accordance with the principle of NC to achieve a variety of control. High-grade, mid-range PLC, but also developed NC unit, or motion unit, can achieve point control. Motion units can also achieve curve interpolation, curve control movement
Translated with www.DeepL.com/Translator (free version)
優(yōu)勢型號如下:
5SHY3545L0009
5SHY3545L0016
HESG440295R2
HESG448688R22PPC905AE101
IMMPI01
IMMPI02
IMNPM01
IMPCC01
IMPTM01
IMQRS22
IMRI002
IMRIO02
IMSED01
IMSEM11
IMSET01
IMSPM01
INBIM02
INBTM01
INCT01
INDDM01
INICT01
INICT03
INICT03A
INICT12
INICT13A
INICT13A
INICTO3A
INIIT01
