英维思(3008, 3625, 3508E.3721, 3700A 4351B)
本特利(3500/42M， 3500/ 22M, 3500/ 95.3500/05)
黑马(F3330, F3236， F6217, F7126, F8621A)
福克斯波罗(FBM203, FBM204, FBM217, FMB231)
AB: (1746 1747 1756 1770 1771 1785触摸屏2711系列CPU PLC)
普罗索芙特PROSOFT MVI46/56/69, AB旗下，跟AB模块
瑞恩RELIANCE模块,卡件
飞利浦EPRO MMS6210/ 621…. PR6423/003-031
美尔托Meltal MT1102-02-00, MS3101-00-00, MS3102-01-00
横河YOKOGAWA AAI, ADV, ADI, ANB, AMM, SB, PW(型号开头),卡件模块(CPU,电源,输出，PLC)
摩尔MOORE Q开头, 3开头模块,像电视显示器
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公司经销产品应用于数控机械 冶金、石油天然气、石油化工、化工、造纸印刷、纺织印染、机械、电子制造、汽车制造、烟草、塑胶机械

控制继电器存在的缺点今天继电器已应用到家庭及工业控制的各个领域。他们比以往的产品具有更高的可靠性。但是，这也是随之带来的一些问题。如绝大多数控制继电器都是长期磨损和疲劳工作条件下进行的，容易损坏。而且继电器的触点容易产生电弧，甚至会熔在一起产生误操作，引起严重的后果。再者，对一个具体使用的装有上百个继电器的设备，其控制箱将是庞大而笨重的。在全负荷运载的情况下，大的继电器将产生大量的热及噪声，同时也消耗了大量的电能。并且继电器控制系统必须是手工接线、安装，如果有简单的改动，也需要花费大量时间及人力和物力去改制、安装和调试。

二、可编程序控制器的优势、特点及功能

可编程控制器以体积小功能强大所著称，它不但可以很容易地完成顺序逻辑、运动控制、定时控制、计数控制、数字运算、数据处理等功能，而且可以通过输入输出接口建立与各类生产机械数字量和模拟量的联系，从而实现生产过程的自动控制。特别是现在，由于信息、网络时代的到来，扩展了PLC的功能，使它具有很强的联网通讯能力，从而更广泛地应用于众多行业。

１、顺序控制

顺序控制是PLC基本、应用比较广泛的领域。所谓的顺序控制，就是按照工艺流程的顺序，在控制信号的作用下，使得生产过程的各个执行机构自动地按照顺序动作。由于它还具有编程设计灵活、速度快、可靠性高、成本低、便于维护等优点，所以在实现单机控制、多机群控制、生产流程控制中可以完全取代传统的继电器接触器控制系统。它主要是根据操作按扭、限位开关及其它现场给来的指令信号和传感器信号，控制机械运动部件进行相应的操作，从而达到了自动化生产线控制。比较典型应用在自动电梯的控制、管道上电磁伐的自动开启和关闭、皮带运输机的顺序启动等。例如我分厂的原料混料系统就是利用了PLC的顺序控制功能。

２、闭环过程控制

以往对于过程控制的模拟量均采用硬件电路构成的PID模拟调节器来实现开、闭环控制。而现在完全可以采用PLC控制系统，选用模拟量控制模块，其功能由软件完成，系统的精度由位数决定，不受元件影响，因而可靠性更高，容易实现复杂的控制和先进的控制方法，可以同时控制多个控制回路和多个控制参数。例如生产过程中的温度、流量、压力、速度等。

CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1CI858-1 3BSE018137R1

The shortcomings of control relay Today, relay has been applied to various fields of household and industrial control. They have higher reliability than previous products. However, it also brings some problems. For example, most control relays are easily damaged due to long-term wear and fatigue. Moreover, the contacts of the relay are easy to produce arc, and even fuse together to cause misoperation, which will cause serious consequences. Moreover, the control box of a specific equipment equipped with hundreds of relays will be huge and cumbersome. In the case of full load carrying, large relays will generate a lot of heat and noise, and also consume a lot of electrical energy. And the relay control system must be manually wired and installed. If there is a simple change, it will also take a lot of time, manpower and material resources to reform, install and debug.



2、 Advantages, characteristics and functions of programmable controller



The programmable controller is famous for its small size and powerful functions. It can not only easily complete the functions of sequential logic, motion control, timing control, counting control, digital operation, data processing, etc., but also establish the connection with the digital and analog quantities of various production machinery through the input/output interface, so as to realize the automatic control of the production process. Especially now, due to the arrival of information and network era, the function of PLC has been expanded, so that it has strong networking communication ability, and is more widely used in many industries.



1. Sequential control



Sequence control is a basic and widely used field of PLC. The so-called sequential control is to make each executive mechanism in the production process automatically act in sequence according to the sequence of the process flow and under the action of the control signal. Because it also has the advantages of flexible programming design, fast speed, high reliability, low cost and easy maintenance, it can completely replace the traditional relay contactor control system in the realization of single machine control, multi cluster control and production process control. It mainly controls the mechanical moving parts for corresponding operation according to the operation buttons, limit switches and other on-site command signals and sensor signals, so as to achieve automatic production line control. Typical applications include the control of automatic elevators, the automatic opening and closing of electromagnetic valves on pipelines, and the sequential starting of belt conveyors. For example, the raw material mixing system of our branch factory uses the sequence control function of PLC.



2. Closed loop process control



In the past, PID analog regulator composed of hardware circuit was used to realize open and closed loop control for analog quantity of process control. Now it is completely possible to use PLC control system and analog control module. Its functions are completed by software. The accuracy of the system is determined by the number of bits and is not affected by the elements. Therefore, it is more reliable, easy to achieve complex control and advanced control methods, and can control multiple control loops and multiple control parameters at the same time. For example, temperature, flow, pressure, speed, etc. in the production process.

 

ABB    EHDB130        
ABB    DSQC313        
ABB    PM860K01        
ABB    1TGE120011R1001        
ABB    PFEA113-20        
ABB    PM861AK01        
ABB    MSR04X1        
ABB    5SHY3545L0003        
ABB    086318-002        
ABB    IMASI23        
ABB    CI858-1 3BSE018137R1        
ABB    5SHY3545L0005        
ABB    07KT98        
ABB    DSQC626        
ABB    SPBRC400        
ABB    1TGE120021R0010        
ABB    KUC720AE01        
ABB    KUC720AE        
ABB    3HAC14550-2/09A        
ABB    UFC762AE101 3BHE006412R0101        
ABB    PFEA112-20 3BSE030369R0020        
ABB    MSR04XI        
ABB    DSQC346U        
ABB    HIEE300698R0001        
ABB    35AE92        
ABB    TP830        
ABB    DO880-1        
ABB    CI858        
ABB    DDO02        
ABB    3BHE027632R0101        
ABB    GDD471A001        
ABB    AM801F        
ABB    PM861AK01        
ABB    PFCL201C 10KN        
ABB    UDD406A        
ABB    EI803F        
ABB    ARCOL 0338        
ABB    RF615        
ABB    FC95-22 HESG440295R2 HESG448688R22        
ABB    BCU-02        
ABB    GFD212A        
ABB    DSQC633        
ABB    DO620        
ABB    SC510        
ABB    CI615        
ABB    5SHX1960L0004        
ABB    SK829007-B        
ABB    DSDX452        
ABB    UAC326AE        
ABB    CI858        
ABB    FI820F        
ABB    CB801        
ABB    DSQC602        
ABB    SPDSI22        
ABB    81EU01E-E        
ABB    5SHY4045L0006        
ABB    EI813F        
ABB    DSQC346G        
ABB    NTAC-02        
ABB    DSTF610端子        
ABB    FI830F        
ABB    07BR61R1 GJV3074376R1        
ABB    5SHY35L4520 5SXE10-0181 AC10272001R0101        
ABB    TC625        
ABB    3HAB8101-8/08Y        
ABB    FS450R12KE3/AGDR-71C        
ABB    AFC094AE02        
ABB    PPD115A102        
ABB    XM06B5        
ABB    SA801F        
ABB    INNIS21        
ABB    FI830F        
ABB     DTDX991A        
ABB    CI858-1        
ABB    BB510(DC5256)        
ABB    PM861K01        
ABB    83SR06B-E        
ABB    3HNA000512-001        
ABB    086407-502        
ABB    0745745Q        
ABB    TAS.580.0550G00        
ABB    REF542PLUS面板        
ABB    TP830        
ABB    PCD231B        
ABB    UFC921A101        
ABB    NU8976A99        
ABB    PCC322BE        
ABB    3BHB003688R0101        
ABB    SR511 3BSE000863R1        
GE    IS220PSVOH1B        
GE    URRHH        
GE    UR9EH        
GE    BK698A201S12        
GE    369-HI-R-M-0-0-0-E        
GE    SR489-P5-HI-A20-E        
GE    UR6CH        
GE    UR8NH        
GE    BK698A201S12        
GE    IS220PPROS1B        
GE    BK698CPA15B0        
GE    VMIVME-7750        
GE    IC698CPE030        
GE    IC697CPX928        
GE    IS200EPSMG1AED        
GE    UR8LH        
GE    UR8AH        
GE    UR8HH        
GE    IS200EGDMH1AFF        
GE    ENK32        
GE    SR489-P5-HI-A20-E        
GE    IC698CPE040-JP