PLC的應(yīng)用面廣、功能強(qiáng)大、使用方便，已經(jīng)成為當(dāng)代工業(yè)自動(dòng)化的主要裝置之一，在工業(yè)生產(chǎn)的所有領(lǐng)域得到了廣泛的使用，在其他領(lǐng)域(例如民用和家庭自動(dòng)化)的應(yīng)用也得到了迅速的發(fā)展。
電工委員會(IEC)在1985年的PLC標(biāo)準(zhǔn)草案第3稿中，對PLC作了如下定義：“可編程序控制器是一種數(shù)字運(yùn)算操作的電子系統(tǒng)，專為在工業(yè)環(huán)境下應(yīng)用而設(shè)計(jì)。它采用可編程序的存儲器，用來在其內(nèi)部存儲執(zhí)行邏輯運(yùn)算、順序控制、定時(shí)、計(jì)數(shù)和算術(shù)運(yùn)算等操作的指令，并通過數(shù)字式、模擬式的輸入和輸出，控制各種類型的機(jī)械或生產(chǎn)過程。可編程序控制器及其有關(guān)設(shè)備，都應(yīng)按易于使工業(yè)控制系統(tǒng)形成一個(gè)整體，易于擴(kuò)充其功能的原則設(shè)計(jì)。"從上述定義可以看出，PLC是一種用程序來改變控制功能的工業(yè)控制計(jì)算機(jī)，除了能完成各種各樣的控制功能外，還有與其他計(jì)算機(jī)通信聯(lián)網(wǎng)的功能。
公司名稱：福建中立恒自動(dòng)化設(shè)備有限公司
地址：福建省福州市鼓樓區(qū)溫泉街道五四路9號寧德大廈（宏福大廈）10層1064室
西門子 300 plc 通過 MPI 通訊卡與組態(tài)王進(jìn)行通訊時(shí)，能否實(shí)現(xiàn)雙設(shè)備冗余的功能？
可以實(shí)現(xiàn)。
）一個(gè) cp5611 卡可以連接兩臺 s7300plc（使用西門子廠家提供的可編程插頭來實(shí)現(xiàn)）；
2）在組態(tài)王軟件中建立兩個(gè) s7300plc，設(shè)備地址分別設(shè)備為 7.2 和 8.2（設(shè)備地址根據(jù)實(shí)際設(shè)備來設(shè)置），小數(shù)點(diǎn)前面的號指 plc 的地址，后面是 cpu 所在的槽號。這兩個(gè) plc 在 STEP7 編程軟件中是單獨(dú)定義的，所以除 plc 地址不一樣，槽號是一樣的；
3）在組態(tài)王中只須定義主設(shè)備的變量即可。
可當(dāng)天發(fā)貨！
組態(tài)王和西門子 300、400PLC 通訊支持哪些通訊鏈路？是否需要西門子軟件的支持？
1）MPI 電纜通訊方式：組態(tài)王所在的計(jì)算機(jī)必須安裝 STEP7 編程軟件；
2）MPI 通訊卡方式：組態(tài)王所在的計(jì)算機(jī)必須安裝 STEP7 編程軟件；
3）以太網(wǎng)通訊方式：不需要在組態(tài)王所在的計(jì)算機(jī)上安裝 STEP7 或 Simatic net 通訊軟件；
4）Profibus－DP通過方式：需要在本機(jī)上安裝 STEP7 編程軟件和 Simatic net 6.0(或以上版本)的通訊配置軟件和*；
Profibus－S7通過方式：需要在組態(tài)王所在的計(jì)算機(jī)上安裝 STEP7 編程軟件 ，但不需要安裝SIMATIC NET 軟件
LOT OF 6 Swagelok MALE CONNECTOR 1/4" TUBE X 1/4" NPT, SS-400-1-4, SHIPSAMEDY#X3
LOT OF 6 Swagelok CAP VCR 1/2" , SS-8-VCR-CP, SHIPSAMEDAY BOX 10 "F1"
Lot Of 6 Swagelok Angle Valve 3/8", SS-1GS6-A, No Nut&Ferrule Shipsameday#132P4
Lot Of 6 Stromwandler PSA 213 50/5A K1.1, 4.450.116.50, 69077003/7, RACK K #K14
LOT OF 6 SQUARE D LIGHT MODULE LAMP GE 756 & 755, 9001 KM-33 (5X) & KM-1 #1608Z1
Lot Of 6 SICK i11-S121 (5X)& i12-SA203, Safety Switch, ShipDameDay#1646BP
Lot Of 6 Set, Hansen Quick Disconnect Series 8000, 1/2" NPT, Shipsameday #170P3
LOT OF 6 PARKER/SWAGELOK UNION SS-810-6, SS-600-6, 8SC8-316, 4SC4-316 #131P9
Lot Of 6 PARKER FEMALE CONNECTOR 8FSC12N-316, 8FEL8N-316, 8BLEN8-316
LOT OF 6 PARKER BULKHEAD 1/4", 4MBC4N-316-C3 & 4BC4-316-C3, SHIPSAMEDAY#V1B
Lot Of 6 Micron IC FLASH 2G PARALLEL 63VFBG, MT29F2G08ABDHC-ET:D TR, SHIPSAMEDAY
Lot Of 6 Keyence Transmissive Fiber Optic, FU-77TZ, FU77TZ, ShipSameday
Lot Of 6 AEROVOX CAPACITOR 30AMP, A30GEN4C66 & 30VK6 & Filter Connects SF20
Lot Of 6 AB 1746-IB32 1746-0B32 1746-ITB16 1747-AIC 1492-IFM4 RackD #D18
Lot Of 58 Brass Elbow Male Connector & Male Tee Branch 3/8" Tube X 1/4" NPT
Lot Of 5756, KOA Speer Thick Film Resistors SMD 1/16watts, RK73B1ELTP205J, N#36
Lot Of 573, Panasonic CAP ALUM 220UF 16V 20% SMD, ECE-V1CA221XP, PCE3353CT- #R15
Lot Of 572, Coilcraft 0805CS-681XGLC, Fixed Inductors 0805CS Ceramic Chip 68#V91
Lot Of 57, Cinch Connectivity CONN SMA JACK R/A 50 OHM PCB, 142-0701-301,
Lot Of 57 MDC VACUUM (47) NW16 Centering Ring, SST, (9X) NW Blank Cap #136AE
Lot Of 55, PANASONIC Electrolytic Capacitor EEE-1AA470WR SHIPSAMEDAY#V155
Lot Of 54, MOLEX CONN HEADER VERT 14POS 2.54MM, 0901310767,SHIPSAMEDAY
Lot Of 53, IDT 557G-08LF, IC MUX 2:1 PCI-EXPRESS 16-TSSOP, 800-1065-5-ND #V143
Lot Of 53 Molex 95009-2441, WM5489-ND, CONN MOD JACK 4P4C R/A UNSHLD#V132
LOT OF 52, AMP TYC1367337-1-X, 1367337-1-X #W79
Lot Of 514, ON MBRS340T3G, Schottky Diodes & Rectifiers 3A 40V, #S80
Lot Of 51, Texas PCM1754DBQ, Audio D/A Converter ICs 24-Bit 192kHz S#48
Lot Of 51, Texas OPA2353EA/250, High Speed Operational Amplifiers Hi-Spd #S69
Lot Of 51, ATC Multilayer Ceramic Capacitors, 700B120JT500X, SHIPSAMEDAY#AA107
Lot Of 5014, ON Bipolar Transistors Pre-Biased 100mA 50V BRT, MUN2111T1G #X46
Lot Of 5000, VISHAY Ceramic Capacitor CRCW0603100KJNTA, SHIPSAMEDAY#AC6
Lot Of 5000, PANASONIC SMD Chip Resistor, ERJ3EKF5620V, SHIPSAMEDAY#AA97
Lot Of 5000, PANASONIC Chip Resistor ERJ-6GEYJ330V, SHIPSAMEDAY#N130
Lot Of 5000, PANASONIC Chip Resistor ERJ-3GSYJ103V, SHIPSAMEDAY#W108
Lot Of 5000, PANASONIC Chip Resistor ERJ-3GSYJ103V, SHIPSAMEDAY #N151
Lot Of 5000, PANASONIC Chip Resistor ERJ-3GEYJ4R7V, SHIPSAMEDAY#N129
Lot Of 5000, PANASONIC Chip Resistor ERJ-3GEYJ102V, SHIPSAMEDAY#W99
Lot Of 5000, PANASONIC Chip Resistor ERJ-3GEYJ101V, SHIPSAMEDAY#N125
Lot Of 5000, PANASONIC Chip Resistor ERJ-3GEY0R00V, SHIPSAMEDAY#W96
Lot Of 5000, PANASONIC Chip Resistor ERJ-3GEY0R00V, SHIPSAMEDAY#N116
Lot Of 5000, PANASONIC Chip Resistor ERJ-3EKF5111V, SHIPSAMEDAY#N119
Lot Of 5000, PANASONIC Chip Resistor ERJ-3EKF4751V, SHIPSAMEDAY#W103
Lot Of 5000, PANASONIC Chip Resistor ERJ-3EKF2002V, SHIPSAMEDAY#N126
Lot Of 5000, PANASONIC Chip Resistor ERJ-3EKF1002V, SHIPSAMEDAY#N117
Lot Of 5000 VISHAY Thick Film Resistors, CRCW060330R1FKEA, SHIPSAMEDAY#AA82
Lot Of 5000 Rohm MCR10EZHF1004 RES SMD 1M OHM 1% 1/8W 0805, RHM1.00MCDKR-ND N#67
Lot Of 5000 KOA Thick Film Chip Resistor RM73B1JT102J, SHIPSAMEDAY#N150
Lot Of 500, Panasonic Ceramic Capacitor, ECJ-2VB2A102K, SHIPSAMEDAY#V202
Lot Of 500, Panasonic Ceramic Capacitor ECJ-1VF1E104Z, SHIPSAMEDAY#V200
