5SDA27F2002
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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。
SQUARE D 92454 SAFETY SWITCH
SQUARE D 9422RN1 OPERATING MECHANISM
SQUARE D 989720 CIRCUIT BREAKER
SQUARE D 9998-L53
SQUARE D AF2320G33ST
SQUARE D AF2320G39ST
SQUARE D AF2320G39ST
SQUARE D ALTIVAR E-FLEX 8839 EFDJH4VY MOTOR CONTROLLER
SQUARE D ATS46C32N
SQUARE D BUSWAY PLUG PKA36150G
SQUARE D BUSWAY SWITCH PQ3610G
SQUARE D CIRCUIT BREAKER EHB34080 *FACTORY SEALED*
SQUARE D CIRCUIT BREAKER FAL32040
SQUARE D CIRCUIT BREAKER FAL36060 *FACTORY SEALED*
SQUARE D CIRCUIT BREAKER FHL3605016MV
SQUARE D CIRCUIT BREAKER KAL3625032MV
SQUARE D CIRCUIT BREAKER KAL3625032MV8002
SQUARE D CIRCUIT BREAKER KC34250
SQUARE D CIRCUIT BREAKER KH36000MMT
SQUARE D CIRCUIT BREAKER KHF36125
SQUARE D CIRCUIT BREAKER KHF361251580
SQUARE D CIRCUIT BREAKER KHL36125 *FACTORY SEALED*
SQUARE D CIRCUIT BREAKER LAL36350 (BOX NOT OPEN)
SQUARE D CIRCUIT BREAKER LAL36350
SQUARE D CLASS 2510-KO MANUAL MOTOR STARTING SWITCH
SQUARE D DU-321-RB
SQUARE D EE75T212H TRANSFORMER
SQUARE D E-FLEX DEVICE 8839EFDJH4VYAAAR ADJ SPEED DRIVE
SQUARE D ELECTRIC MOLDED CASE KCL34175
SQUARE D ENCLOSURE 9016-GVG1 SER. C
SQUARE D FA-32030 CIRCUIT BREAKER
SQUARE D FA360401027 CIRCUIT BREAKER 40A 3P 600V
SQUARE D FAL-34015 15 AMP CIRCUIT BREAKER
SQUARE D FAL34020 CIRCUIT BREAKER
SQUARE D FAL3601513M MOLDED CASE CIRCUIT BREAKER 600V 15A
SQUARE D FAL3603013M CIRCUIT BREAKER *FACTORY SEALED*
SQUARE D FCP34020TF CIRCUIT BREAKER 20A
SQUARE D FH36060 MOLDED CASE CIRCUIT BREAKER 600V
SQUARE D FHL3600712M1212 CIRCUIT BREAKER
SQUARE D FHL3600712MV MOTOR CIRCUIT PROTECTOR 7A MAG-GARD
SQUARE D FHL3600712MV MOTOR CIRCUIT PROTECTOR 7A MAG-GARD
SQUARE D FHL36090 MOLDED CASE CIRCUIT BREAKER 90A 600V
SQUARE D FHL3610018MV MOTOR CIRCUIT PROTECTOR 100A MAG-GARD
SQUARE D FHP36030 MOLDED CASE CIRCUIT BREAKER 30A 600V 3P *FACTORY SEALED*
SQUARE D H364DS *FACTORY SEALED*
SQUARE D HDL36100SN CIRCUIT BREAKER
SQUARE D HU364AWK
SQUARE D HU-463-DS
SQUARE D JLL36000S25 CIRCUIT BREAKER
SQUARE D KA36100 CIRCUIT BREAKER 100AMP 3 POLE
SQUARE D KA36150 CIRCUIT BREAKER *FACTORY SEALED*
SQUARE D KA36200
SQUARE D KAL26200 CIRCUIT BREAKER MOLDED CASE 200A 2P *FACTORY SEALED*
SQUARE D KAL361101021 CIRCUIT BREAKER w/ SHUNT TRIP
SQUARE D KAL361501212 MOLDED CIRCUIT BREAKER 150A 600V
SQUARE D KAL361751121 CIRCUIT BREAKER
SQUARE D KAL361751212 CIRCUIT BREAKER *FACTORY SEALED*
SQUARE D KAL361751212 CIRCUIT BREAKER
SQUARE D KAL36225 CIRCUIT BREAKER *FACTORY SEALED*
SQUARE D KAL3625032MV8002 CIRCUIT BREAKER (AS PICTURED)
SQUARE D KAM0212AC
SQUARE D KCL34174 CIRCUIT BREAKER
SQUARE D KH36110 CIRCUIT BREAKER 110A
SQUARE D KH361101021 CIRCUIT BREAKER 110A
SQUARE D KH36200 CIRCUIT BREAKER
SQUARE D KHL36150 CIRCUIT BREAKER *FACTORY SEALED*
SQUARE D LA36250 CIRCUIT BREAKER
SQUARE D LA36400 CIRCUIT BREAKER 400A
SQUARE D LAL26200 THERMAL-MAGNETIC CIRCUIT BREAKER
SQUARE D LAL361501212 CIRCUIT BREAKER 600 V 150 AMP
SQUARE D LAL36250 CIRCUIT BREAKER
SQUARE D LAL36250 CIRCUIT BREAKER
SQUARE D LAL36300 CIRCUIT BREAKER
SQUARE D LAL363001590 CIRCUIT BREAKER
SQUARE D LAL3630051595 CIRCUIT BREAKER
SQUARE D LAL36400 CIRCUIT BREAKER 400A
SQUARE D LAL3640032M CIRCUIT BREAKER
SQUARE D LC36600 CIRCUIT BREAKER *SEALED*
SQUARE D LI36400 CIRCUIT BREAKER
SQUARE D LX36100 S1B CIRCUIT BREAKER 250A
SQUARE D LX36150G SERIES IB CIRCUIT BREAKER 250A
SQUARE D MA36400 CIRCUIT BREAKER 400A
SQUARE D MA36800 CIRCUIT BREAKER *SEALED*
SQUARE D MAL3610001021 CIRCUIT BREAKER 1000A
SQUARE D MAL365006290 CIRCUIT BREAKER 500A
SQUARE D MASTERPACT NW 40H1 W/MICROLOGIC 6.0A
SQUARE D MEL236LSIG1257 225A CIRCUIT BREAKER w/ MICROLOGIC TRIP
SQUARE D MEL236LSIG2245 CIRCUIT BREAKER w/ MICROLOGIC TRIP UNIT
SQUARE D MHL361000 CIRCUIT BREAKER *NICE*
SQUARE D MHP360008M SER.2
5SDA27F2002
SQUARE D MHP361000-Z *NEW OUT OF BOX
SQUARE D NC361200 CIRCUIT BREAKER
SQUARE D NEHB30435-2 PANEL BOARD
SQUARE D NETWORK INTERFACE MODULE 8030-CRM-540
SQUARE D NX361200G CIRCUIT BREAKER
SQUARE D OVERLOAD RELAY THERMAL UNIT 8810 SCA2
SQUARE D PBQ3640G
SQUARE D PFA34020G BUSSWAY SWITCH
SQUARE D PHF360000M AUTOMATIC MOLDED CASE SWITCH
SQUARE D PM820RD POWER LOGIC METER MODULE
SQUARE D POWER LOGIC CIRCUIT MONITOR 3020-CM100X1
SQUARE D POWER LOGIC CIRCUIT MONITOR 3020-CM2350
SQUARE D POWER LOGIC SYSTEM DISPLAY 3050-SD200
SQUARE D POWERPACT PJL36120 CIRCUIT BREAKER
SQUARE D PQ-3620-G
SQUARE D PQ3620G BUSWAY SWITCH
SQUARE D PROCESSOR 8020-SCP-424
SQUARE D Q0B115GF1 CIRCUIT BREAKER 15A 1POLE 120V *NEW IN A BOX
SQUARE D Q4L33001027 CIRCUIT BREAKER
SQUARE D QMB-325W SWITCH
SQUARE D QMB363TW SWITCH
SQUARE D QMB-3640 PANELBOARD SWITCH UNIT
SQUARE D RJF36250 CIRCUIT BREAKER
SQUARE D S/MAX I/O INTERFACE MODULE 8030-CRM222 *FACTORY SEALED*
SQUARE D SD-78726
SQUARE D SY/MAX 8010-SPR-100 PROGRAMMER
SQUARE D SY/MAX 8030-CRM601 DUAL INTERFACE CONVERTER MODULE
SQUARE D SY/MAX 8030-HIM-101 INPUT MODULE *FACTORY SEALED*
SQUARE D SY/MAX 8030-PS11 POWER SUPPLY
SQUARE D SY/MAX 8030-PS31 POWER SUPPLY MODULE
SQUARE D SY/MAX 8030-RIM125 INPUT MODULE *FACTORY SEALED*
SQUARE D SY/MAX 8030-RIM126 THERMOCOUPLE INPUT MODULE
SQUARE D SY/MAX 8030-RIM131 HIGH SPEED COUNTER MODULE *FACTORY SEALED*
SQUARE D SY/MAX 8030-ROM121 OUTPUT MODULE
SQUARE D SY/MAX 8030-ROM441 OUTPUT MODULE
SQUARE D SY/MAX 8030-RRK300 18-SLOT PLC RACK
SQUARE D SY/MAX 8055-SCP655 PROCESSORE MODULE 26K MEMORY *FACTORY SEALED*
SQUARE D SY/MAX MODEL 400 8020-SCP424 PROCESSOR MODULE w/ KEY
SQUARE D TRANSFORMER 15T3H
SQUARE D TVS2EMA16A1
SQUARE D TVS4EMA16A1
SQUARE D VCEL-SK3 LUG KIT (AS PICTURED-MISSING 3 LUGS)
SQUARE D VCEL-SK3 LUG KIT (FULL KIT)
SQUARE-D FAB36020 CIRCUIT BREAKER
SQUARE-D FHL36100A2 CIRCUIT BREAKER 100A
SQUURE D FJA240304
SRCO 35421169A
SS GLY.FILLED 98152602 GAUGE 30-0-30 PSI
SSD 347-2550-9-8-1-010-1010-100 DRIVE
SSD 540-095-4-2-1-175-1000 DC DRIVE
SSD 545-0500-9-8-1-010-10101-00
SSD 546-9-8-1-115-1010-1-00 AC DRIVE CONTROLLER
SSD 5575-2 DRIVE CONTROL
SSD DRIVE 955+8R0030 DRIVE 590P-DRV/500/0011/US/ARM/0/115/0/AUX/0
SSD DRIVES 590DC/00/001 CONTROL ASSEMBLY
SSD DRIVES 690PB/0055/400/3/0/0021/US/0/0/0/0/0 DRIVE
SSD/EUROTHERM 590D DC DRIVE (BROKEN DOOR HINGES)(AS PICTURED)
SSD/EUROTHERM 590D DC DRIVE (BROKEN HINGE)(AS PICTURED)
SST 5136-SD-104 REMOTE I/O CARD
SST 5136-SD-ISA REMOTE I/O CARD
SST/WOODHEAD 5136-DNP-104
STABILUS LIFT-O-MAT 752711 0400N 143/13 B 27
STABILUS LIFT-O-MAT 752711 0400N 143/13 B 27
STACO 221 VARIABLE TRANSFORMER
STACO ENERGY1210B-2 VARIABLE TRANSFORMER
STACO SWITCH 45S08B
STAEFA CONTROL 091-60230-610 *USED
STAGGER WIND H6600 PC BOARD
STAGGER WIND H6600 PC BOARD
STAHL 8210/ 1-5-3/7
STAHL 8214/122-1-124
STAHL 9440/15-01-11 PROFIBUS
STAHL EXICOM ET-65-B-RS422 HMI DEVICE w/ ET-65-PACK FIELDBUS(x3)
STANCOR P-8691 POWER TRANSFORMER
STANCOR TRANSFORMER P-8664
STANDARD E22142-UV-TDE FLX BALLAST 31278STD FLEX CONNECT
STANDARD POWER INC. POWER SUPPLY SPS 40-12
STANL 412/826679-0002 BOARD
STANL 412/826679-0002 BOARD
STANLEY ES40-020 NUTRUNNER *NICE*
STAPLES TYPE C 5/8 2500 32/15
STAR LINEAR SYSTEMS 37429-PR02A PC BOARD
STARRETT F2730-0 ELECTRONIC INDICATOR