5SDA14F5007
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PLC是專為工業(yè)控制而開發(fā)的裝置,其主要使用者是工廠廣大電氣技術(shù)人員,為了適應(yīng)他們的傳統(tǒng)習(xí)慣和掌握能力,通常PLC不采用微機(jī)的編程語言,而常常采用面向控制過程、面向問題的“自然語言”編程。電工委員會(IEC)1994年5月公布的IEC1131-3(可編程控制器語言標(biāo)準(zhǔn))詳細(xì)地說明了句法、語義和下述5種編程語言:功能表圖(sequential function chart)、梯形圖(Ladder diagram)、功能塊圖(Function black diagram)、指令表(Instruction list)、結(jié)構(gòu)文本(structured text)。梯形圖和功能塊圖為圖形語言,指令表和結(jié)構(gòu)文本為文字語言,功能表圖是一種結(jié)構(gòu)塊控制流程圖。
梯形圖是使用得zui多的圖形編程語言,被稱為PLC的*編程語言。梯形圖與電器控制系統(tǒng)的電路圖很相似,具有直觀易懂的優(yōu)點,很容易被工廠電氣人員掌握,特別適用于開關(guān)量邏輯控制。梯形圖常被稱為電路或程序,梯形圖的設(shè)計稱為編程。
WATSON MCDANIEL W-KIT-7-21-065 COMPLETE HEAD ASSY.
WATTS 1/2 9D-M3 BACKFLOW OREVENTER W/ATMOSPHERIC VENT
WATTS 11/2 223 STD HIGH CAPACITY WATER PRESSURE REGULATOR VALVE
WATTS 174A-CAN 125 3/4" VALVE
WATTS EKF501H ELEMENT KIT
WATTS R35-02CP REGULATOR 20 BAR 300 PSI
WATTS REGULATOR EMV 11 6400-SS ELECTRIC ACTUATOR
WATTS REGULATOR RK 909 VT 3/4-1 REPAIR KIT
WAUKESHA CHERRY-BURRELL M38BP820053
WAUKESHA CHERRY-BURRELL M38BP820803TW
WAUKESHA CHERRY-BURRELL M38BP820804
WAUKESHA CHERRY-BURRELL M38BP820805
WAUKESHA CHERRY-BURRELL M38BP820806
WAUKESHA CHERRY-BURRELL M38BP821214
WAUKESHA VALVE 61C 1.5"T6 FLUID HANDLING
WAUKESHA VALVE 61C 1.5"T6 FLUID HANDLING SHORT STAFF
WAUKESHA VALVE WVALVE03784 W68T 1.5" CV35 S-LINE 4"
WAVE BIOTECH KIT 28411698
WEB PRINTING 800-138-00
WEB PRINTING 800-193-00
WEDGEWOOD TECHNOLOGY A47J-Y2J2Z-268Z SENSOR
WEED INSTRUMENTS 2672A-16-13
WEG CACFW090007T5060ESZ
WEG CWC012-01-30V04 MINICONTACTOR 24V
WEG TE01C040X0000101334
WEG USSSW050045T2246EPZ SOFT STARTER
WEIDMULLER 914893 INTERFACE TERMINAL BLOCK
WEIDMULLER GC-01
WEIDMULLER HDC16BABU *NEW IN A FACTORY BAG*
WEIDMULLER LR82859 OUTLET MODULE
WEIDMULLER LTD. 9915480000
WEIGH-TRONIX QC-3265 SCALE
WEINTEK MT506LV TOUCH SCREEN
WEISS HP140TBB HORIZ:160mm VERTIC: 65mm (AS PICTURED)
WEISS HP140TBB HORIZ:160mm VERTIC: 65mm SIN/COS 1Vpp (AS PICTURED)
WEKSLER 0-15 PSI GUAGE
WEKSLER 5" 0/50C BIMETAL THERMOMETER 5A1244CNXEL
WEKSLER BY42YPD4LW GAUGE 0-30 PSI
WEKSLER BY42YPD4LW GAUGE 0-30 PSI
WEKSLER BY42YPH4LW GAUGE 0-200
WELDONET BONNEY 10X3-S40S SA182F304
WEM GLD17/TN242124 *NEW NO BOX
WENGLOR IM02VB-P24
WESCHLER INSTRUMENTS 8000-11-01-60 RELAY
WESTAMP A6531-10CS-316
WESTAMP A6531-10CS-316
WESTAMP A6531-10CS-367
WESTAMP A6531-10CS-367
WESTAMP A6622-16F3-2-103 (082484) SERVO CONTROL (AS PICTURED)
WESTCODE N370CH18 THYRISTOR
WESTERN RESEARCH & DEVELOPMENT WPC100720M1 CIRCUIT BOARD
WESTFALIA 3402-3440-000 WORM WHEEL
WESTFALIA 9143-2285-011 LOWER DISCHARGE
WESTFALIA SPRING ASSEMBLY 0010-6220-000
WESTIGNHOUSE 32.1600.711-00
WESTIGNHOUSE MPR3B1A4DA MOTOR PROTECTIVE RELAY
WESTINGHOUSE 1736A32G01 CIRCUIT BOARD
WESTINGHOUSE 1F0912 TRASNFORMER
5SDA14F5007
WESTINGHOUSE 1F09955
WESTINGHOUSE 1F603
WESTINGHOUSE 2050A15G01 SIZE 5 AC CONTROL
WESTINGHOUSE 2081400
WESTINGHOUSE 210-1289246-D CONTACTOR
WESTINGHOUSE 223P790H01G PC DRIVE BOARD
WESTINGHOUSE 227P452H01 AMPTECTOR I SOLID STATE MODULE 6998D02G04
WESTINGHOUSE 2D81400G10 CONTROLLER
WESTINGHOUSE 32A1528G06 RELAY
WESTINGHOUSE 409C530A29
WESTINGHOUSE 436A907G01
WESTINGHOUSE 5661D26G25 CIRCUIT BREAKER TRIP UNIT
WESTINGHOUSE 588C438G01
WESTINGHOUSE 589C517G01 SPEED AMP BOARD
WESTINGHOUSE 7510E56G0 POWER BOARD
WESTINGHOUSE 765A943G01 CONTROL RELA 120V
WESTINGHOUSE 8204D51 CIRCUIT BOARD
WESTINGHOUSE 8205D79H0
WESTINGHOUSE 9969D9610 COIL SIZE 4 110V 60HZ
WESTINGHOUSE A200M4CAC MOTOR CONTROL
WESTINGHOUSE A201K5CXZ1 MODEL J MOTOR CONTROL
WESTINGHOUSE A201K6CX MODEL J MOTOR CONTROL
WESTINGHOUSE A204S1AHA
WESTINGHOUSE A204S1BAAC SAFETY SWITCH
WESTINGHOUSE A210M3CC MODEL A CONTACTOR SIZE 2 45AMPS
WESTINGHOUSE A900M0DAC
WESTINGHOUSE AMPTECTOR I-A MODEL
WESTINGHOUSE BOARD 2838A32G01
WESTINGHOUSE BOARD 2838A45G01
WESTINGHOUSE CIRCUIT BREAKE HKB3250F (CHIPPED AS PICTURED)
WESTINGHOUSE CIRCUIT BREAKER 1264C99G02
WESTINGHOUSE CIRCUIT BREAKER 20AMP 1532373A
WESTINGHOUSE CIRCUIT BREAKER E1025
WESTINGHOUSE CIRCUIT BREAKER EB3025
WESTINGHOUSE CIRCUIT BREAKER FD3020A02
WESTINGHOUSE CIRCUIT BREAKER KD3400FS
WESTINGHOUSE CIRCUIT BREAKER MCP03150R
WESTINGHOUSE CIRCUIT BREAKER NC31000
WESTINGHOUSE CONTROLLER 2D78522
WESTINGHOUSE DRIVE BOARD 7064C03G01
WESTINGHOUSE FB3050PL TRI-PAC DEION CIRCUIT BREAKER 3P 50A
WESTINGHOUSE FD3025VL CIRCUIT BREAKER 25A
WESTINGHOUSE FD3035VL CIRCUIT BREAKER 35A
WESTINGHOUSE FD3045VL CIRCUIT BREAKER 45A
WESTINGHOUSE FD3150
WESTINGHOUSE FDB3150L CIRCUIT BREAKER
WESTINGHOUSE FDPS363 PANELBOARD SWITCH
WESTINGHOUSE HKD3225 w aux switch and shunt CIRCUIT BREAKER
WESTINGHOUSE HKD3225A06U18 CIRCUIT RBEAKER 225A
WESTINGHOUSE HLA3600T CIRCUIT BREAKER TRIP DEVICE 600A 3P
WESTINGHOUSE HM2P250W5 MOTOR CIRCUIT PROTECTOR 250A
WESTINGHOUSE HMA3800T CIRCUIT BREAKER FRAME, TRIP UNIT
WESTINGHOUSE HMCP003A0CB CIRCUIT BREAKER
WESTINGHOUSE HMCP015E0 CIRCUIT BREAKER 15A
WESTINGHOUSE HMCP015E0A06
WESTINGHOUSE HMCP250A5C MOTOR CIRCUIT PROTECTOR 250A
WESTINGHOUSE HMCP400F5W 400A CIRCUIT BREAKER
WESTINGHOUSE HMCP400X5 CIRCUIT BREAKER
WESTINGHOUSE IM13AG13
WESTINGHOUSE INPUT PROCESS CONTROL 1C31125G01
WESTINGHOUSE JA3175 CIRCUIT BREAKER 175A *FACTORY SEALED*
WESTINGHOUSE JA3175W CIRCUIT BREAKER
WESTINGHOUSE JA3225 CIRCUIT BREAKER
WESTINGHOUSE JA3225W CIRCUIT BREAKER
WESTINGHOUSE JB3250W CIRCUIT BREAKER
WESTINGHOUSE KD3400FS
WESTINGHOUSE KDB3175 CIRCUIT BREAKER
WESTINGHOUSE KDB3225W CIRCUIT BREAKER
WESTINGHOUSE KDL3225F CIRCUIT BREAKER 125A
WESTINGHOUSE LA3300 W/ 50 DEGREE TRIP
WESTINGHOUSE LA3400WK
WESTINGHOUSE LCL3250F CIRCUIT BREAKER
WESTINGHOUSE LD3600WK CIRCUIT BREAKER 600A
WESTINGHOUSE MCP0322 MOTOR CIRCUIT BREAKER PROTECTOR
WESTINGHOUSE MG-6 RELAY AUXILIARY MULTI CONTACT *USED
WESTINGHOUSE MME-10-150
WESTINGHOUSE MOTOR CONTROL A200M2CB
WESTINGHOUSE MOTOR CONTROL A900M1AB SIZE 1 SPEED 2
WESTINGHOUSE NB31200WK w/ 83E2319 w/ 4980D16G06 CIRCUIT BREAKER
WESTINGHOUSE NCDC312F1 CIRCUIT BREAKER (AS PICTURED)
WESTINGHOUSE NCDC312F1 CIRCUIT BREAKER
WESTINGHOUSE NCDC312F1 CIRCUIT BREAKER
WESTINGHOUSE NCDC312F1 CIRCUIT BREAKER w/ TRIP
WESTINGHOUSE NL-771-H
WESTINGHOUSE NL-772-H
WESTINGHOUSE OHMS 8-7 RESISTOR S# 874975
WESTINGHOUSE PB32500F CIRCUIT BREAKER
WESTINGHOUSE PC BOARD 3A99158-G01
WESTINGHOUSE PC1100-1022