319083-0200
319083-0200
319083-0200
联系人：刘锦玲
319083-0200
319083-0200
联系人：刘锦玲
手 机：15359273791（微信同号）
Email: sales5@xrjdcs,com
地址:福建省厦门市翔安区中国.梦谷1号楼1403
厦门兴锐嘉进出口公司将诚信为您服务，保证原装。
以下是我司主营品牌，现列部分卡件列表以供参考，欢迎随时询价：
Foxboro（福克斯波罗）：I/A Series系统，FBM现场输入/输出模块等。
Triconex（英维斯）: 冗余容错容错控制器。
Westinghouse（西屋）： OVATION系统备件。
Allen-Bradley: Reliance瑞恩、1747/1746/1756/1771/1785等。
Schneider Modicon（施耐德莫迪康）处理器、控制卡、电源模块等。
ABB：工业机器人备件DSQC系列、Bailey INFI 90等。
Siemens(西门子)：Siemens MOORE， Siemens数控系统等。
Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。
XYCOM：I/O 、VME板和处理器等。
GE FANUC(GE发那科)：模块、卡件、驱动器等各类备件。
Yaskawa（安川）：伺服控制器、伺服马达、伺服驱动器。
Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。
Woodward（伍德沃德）：数字控制器。
各品牌DCS、PLC备件优势供应，充足库存：
IS200TBAIS1C
IS400JPDHG1A
IS200TBAIH1C
IS200TTURH1C
IS200STAOH2A
IS400JPDDG3A
IS200TREGS2B
IS200TRPOS2C
IS200TRLYH1B
IS200TDBTH2A
IS200TBCIS2C
672281
672276
607536
IS2020JPDBG01 / 1-1:IS200JPDBG1A
IS200JPDGH1A
IS220PAICH1B
IS220YAICS1A
IS200TRPGH1B
IS220PTURH1B
IS220YDIAS1A
IS200WROBH1A
IS420UCSBS1A
IS220YDOAS1A
IS220PDIOH1B
3500/22M-01-03-02
3500/42M-01-02
3500/40M-01-02
3500/50M-01-02
672278
672279
672284
672287
671603
707536
IS220PPDAH1B
The principle of liquid crystal display is to use the physical characteristics of liquid crystal, through the voltage control of its display area, there is power display, so can display graphics. The liquid crystal display is divided into Matrix, segment, character and so on. The lattice liquid crystal display has the advantages of small size, light weight, thin shape, low energy consumption, low operating voltage, no radiation, especially wide field of view, large amount of display information and so on. The liquid crystal display is connected to the main chip through a 20 pin socket, controls the brightness of the LCD by adjusting the size of the drive voltage through a 50K adjustable resistor, and controls the backlight of the LCD by two triode, as shown in figure 10. P1.5 control LCD Data / display instruction data, P1.6 control data read / write, P1.7 control enable signal, P28 pins as data pins, P3.0 and P3.1 as slice selection signal of LCD, p4.1 controls the backlight display of the LCD. Communication interface circuit design, communication interface with the peripheral serial host data exchange and support printing and other tasks. Serial communication only needs a few ports to realize the communication between single-chip microcomputer and PC, which has incomparable advantages. The MSP430 series has a USART module for serial communication. In this design, the USART module of MSP430F149 communicates with the peripheral serial host through RS232 serial port. The system uses a dedicated level converter chip MAX3232 to achieve the level conversion, as shown in figure 11. The MAX3232 chip is a level conversion chip produced by Maxim Company, including two-way receiver and driver, with reliable performance. The source of sine wave is 220V / 50Hz sine wave which is directly from the market electricity, and it is converted to 50Hz sine wave (for example, 5V) which is lower voltage by using voltage transformer. The harmonic distortion of the sine wave depends on the harmonic distortion of the power supply and the parameters of the transformer, and its output amplitude is realized by the drive circuit of the photoelectric coupler controlled by the D / A converter, the output signal of the D / A converter controls the turn-on level of the optocoupler, and the superimposed voltage of AC and DC produced by the voltage divider and the resistance divider. The DC component is isolated by the capacitor, and only the AC component is sent to the operational amplifier for amplification several times, generates a pure AC signal controlled by the magnitude of the D / A signal. The triangle wave generator generates 150khz triangle wave, and the low frequency sine wave generator generates 50hz sine wave. Both signals are sent to the comparator's in-phase and in-phase input, respectively, and a rectangular wave is generated at the comparator's output. The frequency of the rectangular wave is the same as that of the 150khz triangle wave. The pulse width of the rectangular wave is modulated by the real-time amplitude of the 50hz sine wave, and then changes with the real-time amplitude of the 50hz sine wave. It is sent to one input end of the high-speed electronic switch and reverse through a first-stage inverter to the other input end of the high-speed electronic switch.
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