5SDA11D1702
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準）詳細地說明了句法、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。
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WESTINGHOUSE PC1100-1022
WESTINGHOUSE PC1100-1024
WESTINGHOUSE PC700B/M2030400610 DRIVE
WESTINGHOUSE PWM5880C86H01PC BOARD W/RED LIGHTS
WESTINGHOUSE S01AA15AC VOLTRAP
WESTINGHOUSE SPB 100 CIRCUIT BREAKER w/ POW-R TRIP 7 2000A
WESTINGHOUSE SPB 50 CIRCUIT BREAKER w/ POW-R TRIP 7 800A
WESTINGHOUSE T6E194 SINGLE PHASE TRANSFORMER
WESTINGHOUSE TAP 366 BUSWAY FUSIBLE SWITCH 600A (AS PICTURED)
WESTINGHOUSE TAP363 DE-ION SWITCH
WESTINGHOUSE TI-2 RELAY 1167066-B
WESTINGHOUSE TI-2 RELAY 1167069-B
WESTINGHOUSE TYPE M60 SYNCHRO ACCEPTOR
WESTINGHOUSE V200M5CJC
WESTINGHOUSE V201K5CJZ1 CONTACTOR
WESTLOCK S-1040-TLBY DUAL DISPLAY MONITOR
WETINGHOUSE P-RAB85-X99
WHC5205 X 12 STEEL HYDRAULICS 3/4" MJIC X 3/4"
WHEDCO 78004655 TGT-S000-1-0
WHEDCO IMC-1151-1-B
WHEDCO IMC-1151-1-B
WHEDCO MTR-3S33-G-R-O-E-O SERVO MOTOR
WHEDCO PC CONTROL BOARD 17003699 REV. A
WHEELOCK INC. EPHONE RELAY RX-1419 *NEW IN BOX *
WHITE-RODGERS 3L01-191 SNAP DISC LIMIT CONTROL-FIXED SETTING *FACTORY BAG*
WHITE-RODGERS 3L01-191 SNAP DISC LIMIT CONTROL-FIXED SETTING *FACTORY BAG*
WHITE-RODGERS 70-903 CONTACTOR 24V
WHITE-RODGERS 90-342 RELAY 208/240V (AS PICTURED-SIDE BENT)
WHITE-RODGERS AUTOMATIC PILOT 30A46-5
WHITMAN 68060-06 MODEL P88G-4-C15TS PRESSURE SWITCH 3-40PSI
WIEDENBACH CPU105-5
WIEDMULLER 919764
WIELAND 70.310.1640 CONNECTOR
WIKA 013251959 PRESSURE GAUGE 0-2300 PSI
WIKA 111.10 2.5" GAUGE 60PSI 1/4"NPT LM
WIKA 212.54 4" 30INHG VAC 1/4" NPT LM PRESSURE GAUGE 4211944
WIKA 233.50.100 PRESSURE GAUGE 0-10 PSI
WIKA -30in.Hg-0 PRESSURE GAUGE 1493132
WIKA 4265926 TYPE 111.10 4" GAUGE -30-0-30 PSI
WIKA 50398083 TRANSDUCER
WIKA DIGITAL DISPLAY CONTROL 907.01.2083
WIKA GAUGE 0-1,0 BAR
WIKA GAUGE 4253311
WILBAC 18860 PANEL METER 0-200
WILBAC 3-1/2" PANEL METER 0-300AMPS 18395
WILDEN P1/SSPPP/TNU/TF/STF DIAPHRAGM PUMP
WILDEN PUMP P1/SSPPP/TNU/TF/STF
WILKERSON FRP-95-235 FILTER ELEMENT *NEW IN A FACTORY BAG*
WILKERSON GRP-96-000
WILKERSON LRP-96-938 PLASTIC BOWL
WILKERSON REGULATOR R40-0B-000
WILKERSON RRP-96-656 RELIEVING DIAPHRAGM *NEW IN A FACTORY BAG*
5SDA11D1702
WINKELKODIERER G70SSLDBI ENCODER
WINSMITH 924MDSS524X0D4 GEAR REDUCER
WINSMITH SE ENCORE E30MDTS32000EK GEAR REDUCER 1750 RPM
WINTERBURN CI2120A1 TYPE B SPEED SWITCH *FACTORY SEALED*
WINTERS 1424 0-30VAC/KPA GAUGE
WINTERS P927 0-300PSI/KPA GAUGE
WINTERS PAG15804 GAUGE 0-100 PSI/BAR
WINTERS PEM213 0-60PSI/KPA GAUGES
WINTERS PRESSURE GAUGE 0-30 PEM 210
WIRE WIZARD FC-X
WIRE, THERMOCOUPLE J TYPE KNP0090
WIREMOLD 2344-2 DEVICE BOX
WIT INC INTERNATIONAL EGS-2
WITTENSTEIN ALPHA LP 120-M01-10-111-000 PLANETARY GEARHEAD REDUCER
WITTENSTEIN LP 090-MO1-5-111-000 GEAR BOX PLANETARY RATIO
WITTENSTEIN LP120-M01-10-111-000 GEAR DRIVE
WITTENSTEIN SP 100W-MF1-10-1E1-2S GEARHEAD
WITTENSTEIN SP 140S-MF1-10-0K1-2S
WITTENSTEIN TLSA046AAQ-305B01-001 LINEAR CYLINDER TERNERY ACTUATOR *NIB*
WITTENSTEIN TLSA046AAQ-305B01-005 LINEAR CYLINDER
WITTENSTEIN VDH 063-MF1-40 GEAR REDUCER
WITTENSTEIN, INC. ALPHA GEAR BOX PLANETARY LP 090-M01-5-111-000
WITTERNSTEIN, INC. LP120S-MF1-10-1/1-3S GEAR HEAD
WLK7 MECHANICAL COUPLING LINK
WOODHEAD 130KA
WOODS WFC4001-OC
WOODWARD 5441-611 A AMP MODULE RELAY INTERFACE
WOODWARD 5464-544 4-CHANNEL ACTUATOR CONTROL MODULE
WOODWARD 8271-425E
WOODWARD 8271-442 J
WOODWARD 8271-795
WORCESTER 10E39SWZD120AR6 ACTUATOR
WORCESTER CONTROL 10E39SWW120AR3 ACTUATOR
WORCESTER CONTROLS MODEL A 34W R2 PNEUMATIC VALVE ACTUATOR
WTC 812504 CONTROL
XERTEX SENSALL CONTROL 4941C0V000 SLUDGE DENSITY TRANSMITTER
XERTEX SENSALL CONTROL 502TMFH00X USED*
XYCOM 3200-0222000000000 OPERATOR INTERFACE
XYCOM 3612KPM OPERATOR INTERFACE PANEL
XYCOM 4117T PANELVIEW 4117-0000000002001
XYCOM 8320 OPERATOR INTERFACE 94321-002
XYCOM 8450-0485033040000 INDUSTRIAL COMPUTER W/INTEGRATED DISPLAY
XYCOM 9450 MONITOR
XYCOM 9450-27B1319010000 OPERATOR PANEL
XYCOM 9450-2AH702G010000 DISPLAY
XYCOM 9460 OPERATOR INTERFACE PANEL 9460-01001020011004 (RUST)
XYCOM AUTOMATION 3410T OPERATOR INTERFACE 3410-301312001100P
XYCOM AUTOMATION 3410T OPERATOR INTERFACE 3410-301412001100W
XYCOM AUTOMATION 3410T OPERATOR INTERFACE 3410-301412001100W
XYCOM I/O MODULE BOARD XVME-203
XYCOM I/O MODULE XVME-401
XYCOM SXT1811 MONITOR
XYCOM VMEBUS AOUT XVME-530
XYCOM VMEbus CPU XVME-674 *NICE*
XYCOM VMEbus XVME-674 *NICE*
XYCOM WORKSTATION 300 SERIES W/ KEYBOARD
XYCOM XVME-201 I/O CONTROLLER
XYCOM XVME-500/4 ANALOG INPUT MODULE
XYCOM XVME-505 ANALOG I/O MODULE 4-CHANNEL ANALOG OUTPUT
XYCOM XVME-505/2
XYCOM XVME-601 CPU MODULE
XYCOM XVME-674 CPU
XYCOM XVME-675 *NEW IN THE BOX*
XYZ ELECTRONICS PC BOARD F0025-00121A
YALE 509016822 BRUSH SET
YAMADA MODEL 851840 DP-10BST
YAMADA NDP-20BAT
YAMADA NDP-20BAT
