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6ES5526-3LF01
PLC向開放性發展
早期的PLC缺點之一是它的軟、硬件體系結構是封閉而不是開放的，如專用總線、通訊網絡及協議、I/O模塊更互不通用，甚至連機架、電源模板亦各不相同，編程語言之一的梯形圖名稱雖一致，但組態、尋址、語言結構均不一致，因此，幾乎各個公司的PLC均互不兼容。目前，PLC在開放性方面已有實質性突破。十多年前PLC被攻破的一個重要方面就是它的專有性，現在情況有了極大改觀，不少大型PLC廠商在PLC系統結構上采用了各種產業標準，如IEC61131-3、IEEE802.3以太網、TCP/IP、UDP/IP等。例如，AEGSchneider團體已開發以PLC機為基礎，在Windows平臺下，符合IEC61131-3國際標準的全新一體系結構的PLC實現高度分散控制，開放度高。高度分散控制是一種全新的產業控制結構，不但控制功能分散化，而且網絡也分散化，所謂高度分散化控制，就是控制算法常駐在該控制功能的節點上，而不是常駐在PLC上或PC上，凡掛在網絡節點上的設備，均處于同等的位置，將“智能”擴展到控制系統的各個環節，從傳感器、變送器到I/O模塊，乃至執行器，無處不采用微處理芯片，因而產生了智能分散系統（SDS）。
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為了使PLC更具開放性和執行多任務，在一個PLC系統中同時裝幾個CPU模塊，每個CPU模塊都執行某一種任務。例如三菱電機公司的小Q系列PLC可以在一個機架上插4個CPU模塊，富士電機的MICREX-ST系列最多可在一個機架上插6個CPU模塊，這些CPU模塊可以進行專門的邏輯控制、順序控制、運動控制和過程控制。這些都是在Windows環境下執行PC機任務的模塊，組成混合式的控制系統。
近幾年，眾多PLC廠商都開發了自己的模塊型I/O或端子型I/O，而通訊總線都符合IEC61131-3標準，這極大的增強了PLC的開放性。
創建開放的網絡環境后，推出了能掛100M的高速以太網的WEB服務器模塊，三菱電機公司小Q系列的QJ71WS96，橫河電機FA-M3系列的F3WBM1-0T-S0；模塊內的軟件捆綁了目前常用的TCP/IP、UDP/IP等傳輸層和網絡層規約，以及HTTP、FTP、SMTP、POP3等應用層規約，使PLC可直接進進因特網，成為不折不扣的WEB的PLC。
3、PLC的體積小型化，運算速度高速化
PLC小型化的好處是節省空間、降低本錢、安裝靈活。目前一些大型PLC，其外形尺寸比他們前一代的同類產品的安裝空間要小50%左右。
近幾年，很多PLC廠商推出了超小型PLC，用于單機自動化或組成分布式控制系統。西門子公司的超小型PLC稱通用邏輯模塊LOGO！，它采用整體式結構，集成了控制功能、實時時鐘和操縱顯示單元，可用面板上的小型液晶顯示屏和6個鍵來編程。LOGO！超小型PLC使用功能模塊圖FBD編程語言，有在PC上運行的Windows98/NT編程軟件。
三菱電機的超小型PLC叫簡單應用控制器，簡稱α并有AL-PCS/win-C型VLS軟件，是強有力且界面友好的編程工具。松下電工的超小型PLC叫可選模式控制器。德國金鐘—默勒公司（MOELLER）的超小型PLC稱控制繼電器，簡稱easy。
運算速度高速化是PLC技術發展的重要特點，在硬件上，PLC的CPU模塊采用32位的RISC芯片，使PLC的運算速度大為進步，一條基本指令的運算速度達到數十個納秒（ns）。三菱電機公司的ANA系列PLC最早使用32位的CPU模塊，當今它的Q02H系列PLC的CPU模塊也用了32位的RISC芯片，基本指令的執行時間為34ns；富士電機MICREX-SX系列PLC的CPU模塊由于采用了32位RISC芯片后，其一條基本指令的運算時間為20ns。
PLC主機運算速度大大進步，與外設的數據交換速度也呈高速化。大家知道，PLC的CPU模塊通過系統總線與裝插在基板上的各種I/O模塊、特殊功能模塊、通訊模塊等交換數據，基板上裝的模塊越多，PLC的CPU模塊與那些模塊之間的數據交換的時間就會增加，在一定程度上會使PLC的掃描時間加長，為此，不少PLC廠商采用新技術，增加PLC系統的帶寬，使一次傳輸的數據量增多；在系統總線數據存取方式上，采用連續成組傳送技術實現連續數據的高速批量傳送，大大縮短了存取每個字所需的時間；通過向系統總線相連接的模塊實現全局傳送，即針對多個模塊同時傳送同一數據的技術，有效地活用系統總線。
當前，不少PLC廠商采用了多CPU芯片并行處理方式，用專門CPU處理編程及監控服務，大大減輕對執行控制程序的CPU芯片的影響，只讓執行控制程序的CPU進行順控和邏輯運算。另外，為進步服務處理速度，縮短操縱時間，采用高速的串行通訊（最大波特率為115Kbps），并將UCB口（最大波特率為12Mbps）引進PLC的CPU模塊，從而實現與編程工具及監控設備之間通訊的高速化，并答應很多人同時使用這兩個通訊端口同時進行編程和調試程序。
FANUC ROBOTICS MAIN PROCESSOR CPU PCB A16B-3200-0040/?07D
ALLEN BRADLEY PROCESSOR MASS STORAGE 1770-M11 SER. B
HF ConTROLS CIRCUIT BOARD AFS-LOS-01
BAILEY ConTROLS NETWORK 90 USER ConTROL KEYBOARD 6634967C1
ALLEN BRADLEY ENCODER / COUNTER MODULE 1771-IJC *LOT OF 2*
FANUC ROBOTICS MEMORY DAUGHTER BOARD PCB A20B-2902-0530/?01A
ULTIPATH MACHIENE I/O ConTROL BOARD 415-0621-902
ALLEN BRADLEY 0.37-0.75KW 1/2-1HP 460V DINAMIC BRAKE MODULE 160-BMB1 SER. A *NEW
FANUC RELAY OUTPUT MODULE AOR08G A03B-0819-C160 *MISSING DOOR*
SIERRA INNOVA-FLO MASS FLOW METER 221-LS-E4-DD-ST?-V4-CM
MITSUBISHI ELECTRIC POWER BOARD BC186A423G53
ALPHA OMEGA COMPUTER SYSTEMS CPU BOARD 901-0014 / STD CPU-80A
INGERSOLL RAND SINGLE CHANNEL METER 93817393
ASCO RED-HAT II 5-150PSI SOLENOID VALVE EF8210G003 *NIB*
SQUARE D VARIABLE FREQUENCY DRIVE POWER INTERFACE BOARD 520II-390-53
MARATHON MonITORS INC. 10 PRO ConTROLLER MMI F810135 949491399 *PLASTIC*
MOORE PRODUCTS AUTOMATION ConTROLLER 882F1C-001
GRAIN SYSTEMS INCORPORATED GSI GRAINBIN ConTROL BOARD PCB370-RP04
GRAIN SYSTEMS INCORPORATED GSI GRAINBIN ConTROL BOARD PCB370-RP02 *FUSE*
MEDAR HAND HELD TERMINAL 937-0007V1
GE FANUC PC BOARD A20B-0009-0150/?09B
FANUC ROBOTICS ETHERNET REMOTE PCB ER1T BOARD A16B-2203-0290/?02A
STANLEY Q3000 SIGMA MODULE SG-SIGMA-202-00?1 REV. C
CHARMILLES TECHNOLOGIES ConTROL BOARD 851 5250
CHARMILLES TECHNOLOGIES ConTROL BOARD 851 4040 C
CHARMILLES TECHNOLOGIES ConTROL BOARD 852 8620 A
CHARMILLES TECHNOLOGIES ConTROL BOARD 851 5040 D
TAPESWITCH ZCA-1 AUTO RESET ZONE MonITORING ConTROLLER B121005CH,SPL
SOUTHWORTH SMARTLIFT HAND ConTROL LIFT OPERATOR 10003643 *NIB*
LINCOLN ELECTRonICS REMOTE OUTPUT ConTROL K857 *NIB*
AMCI PLC SERIES ENCODER MODULE 7751
AMCI ADVANCED MOTION ConTROLS PLC SERIES ENCODER MODULE 1731
ROSEMOUNT 1151 SMART ALPHALINE PRESSURE TRANSMITTER 1151DP4S52B1DF
ALLEN BRADLEY ConTROL LOGIX 13-SLOT CHASSIS 1756-A13/B
INTEL 915GAV SERVER BOARD 01040 NIB
LEUKHARDT 24VDC MIOS dI/O AM-1.03 ConTROLLER 6219102
LEUKHARDT 24VDC MIOS dI/O DK-1.05 ConTROLLER 6219100
ALLEN BRADLEY MEMORY BOARD 8000-MDA REV. C
INDRAMAT SOFTWARE MODULE DSM 2.1-S11-01.15
FANUC ROBOTICS I/O C5 BOARD A16B-1212-0222/?02A
ALLEN BRADLEY IMC-120 SERVO ConTROLLER MODULE 1771-HSN/B F/W REV. 1.04
ABB ROBOTICS ROBOT ConTROLLER MODULE DSQC 230 YB560103-BN
ALLEN BRADLEY 1HP/2HP DC MOTOR ConTROLLER 1365-SAN
DAYTRonIC DIGITAL INDICATOR MODULE 9515A/000
DAYTRonIC DIGITAL INDICATOR MODULE 9515A/002
DAYTRonIC DIGITAL INDICATOR MODULE 9515A
ALLEN BRADLEY PRESSURE ConTROL SWITCH 836T-T251J SER. B *NEW*
BRYANT ConTROL BCI GP3 REV-A NIB
ALLEN BRADLEY Compact I/O DC OUTPUT MODULE 1769-OV32T SER. A
ZELLWEGER ANALYTICS ConTROL BOARD 130134 REV. 6
MARPOSS ConTROL BOARD 6366323703
INDRAMAT OPERATOR INTERFACE POWER SUPPLY BOARD LK BMC 4/02
BALANCE TECHNOLOGY ConTROL CARD D-34060 REV. G
ConTEMPOARY ConTROLS FANUC ARCNET NETWORK INTERFACE CARD PCA66-TPB
INDRAMAT ConTROL BOARD PCB CPU 3-04/00
EGAN RELAY DRIVER BOARD 435339-2 REV. 3 NNB
GIDDINGS & LEWIS CPU BOARD 501-03761-02
SIEMENS DIGITAL INPUT MODULE ET 200B-32DI
SIEB & MEYER TYPE M5 SERVO ConTROLLER 26-44-14
CHARMILLES TECHNOLOGIES ConTROL BOARD PCB 851 7060 D / CT8121660D
CHARMILLES TECHNOLOGIES ConTROL BOARD PCB 208518320 C 8669340B
ALLEN BRADLEY 24VDC 4 SOURCING OUTPUT MODULE 1792D-0B4DX4 SER.B
DAYTRonIC DIGITAL INDICATOR MODULE 9530A W/ 9585A/000
MILLER WELDING I/O INTERFACE BOARD PCB 210700 *NEW*
ALLEN BRADLEY PanelView POWER SUPPLY BOARD 77135-217-51
ALLEN BRADLEY 24VDC DeviceNet ADAPTER MODULE 1734-ADNX SER. A *NEW*
GSE TORQUE ConTROLLER BOARD KDM 40-20-30777 / PC804E
SCHNEIDER MODICON TSX COMPACT HIGH SPEED COUNTER MODULE AS BZAE 201
OMRON 24VDC REMOTE TERMINAL, SRT2-ROF08, NNB
FANUC ROBOTICS BUBBLE MEMORY BOARD A16B-1211-0091/?06C
CHARMILLES TECHNOLOGIES ConTROL BOARD KCB-05G / 690.364.5
CHARMILLES TECHNOLOGIES SIGNAL ANALOG DIGITAL DRIVER BOARD ADD-04C / 615.971.9
MITSUBISHI ELECTRIC MELSEC-Q DATA link UNIT QJ71LP21-25
ALLEN BRADLEY PanelView 1000 ConTROL BOARD 77144-209-71
WAGO DeviceNet COUPLER MODULE 750-306/000-005 *LOT OF 5*
MARATHON MonITORS INC CARBPRO ConTROLLER / PROGRAMMER *MISSING COVER*
MICRO MEMORY INC. MEMORY BOARD MM-6702
VICKERS MAGNETO STRICTIVE CARD 884980
ABB ROBOTICS ANALOG I/O BOARD DSQC 224
MARATHON MonITORS INC UNIPRO ConTROLLER / PROGRAMMER
PEPPERL + FUCHS FREQUENCY-VOLTA?GE ConVERTER KFU8-FSSP-1.D / Y180599
CHARMILLES TECHNOLOGIES POWER MODULE OUTPUT BOARD PMO-02E / 621.932.3
CHARMILLES TECHNOLOGIES POWER MODULE OUTPUT BOARD PMO-01F / 616.091.5
ALLEN BRADLEY CNC ConTROL BACKPLANE BOARD 8000-GA
PINNACLE MICROGUARD LIGHT CURTAIN ConTROLLER MG-32-AB-AU-24V?DC *DAMAGED*
DIETERICH STANDARD DART II FLOW ConTROL DFCII 1MN2XX3XX4MNP1E?PRXTXAXYXDS STD
STI 24VDC 6 INPUT SAFETY MAT ConTROLLER MC4-0006
EMERSON INDUSTRIAL ConTROLS 190/380VDC 12A DRIVE ES2600FRG
SHARP JW10 PROGRAMMABLE ConTROLLER BASIC MODULE JW-1642K *NO COVERS*
FANUC ROBOTICS SDU1 DETECTOR INTERFACE MODULE A02B-0236-C203
ALLEN BRADLEY OPERATOR PANEL ConTROL BOARD 8500-MTBI
ALLEN BRADLEY 16 PT DC DIAGNOSTIC INPUT 1756-IB16D/A 96195074 *MISSING DOOR*
OMRON STI MC3 SERIES MAT ConTROLLER 42767-0010 *NIB*
ATI INDUSTRIAL AUTOMATION MODULE 9120-R26-M *NIB*
MOVOMATIC MEASUREMENT ConTROL MOV 4410Y
MOVOMATIC MESELTRON MEASUREMENT ConTROL MOV 4410
SIEMENS SINUMERIK COMPACT PLC BACKPLANE 6FC5111-0CA73-0?AA1
RAYMOND STEER MANAGER ConTROLLER INTERNAL ASSEMBLY 136-010-702-001 REV. A
ABB ROBOTICS BRAKE RELEASE UNIT 3HAC 14219-1 REV. 02 *NNB*
FANUC ETHERNET REMOTE PCB A16B-2201-0890/?03A WITH A20B-9001-0610/?02A
FANUC ETHERNET REMOTE PCB A16B-2201-0890/?02A WITH A20B-9001-0610/?02A
ANALOG DEVICES ISOLATED RTD INPUT MODULE 3B34-03
INDRAMAT INCREMENTAL POSITION INTERFACE CARD DEF 1.1
TELEMECANIQUE PREVENTA SAFETY RELAY FOR E-STOP / LIGHT CURTAIN XPS-AR
ABB ROBOTICS DRIVE ConTROL BOARD DSQC 236C YB560103-CC/5
ABB ROBOTICS DRIVE ConTROL BOARD DSQC 236C YB560103-CC/11
CHARMILLES TECHNOLOGIES ConTROL BOARD 851 8090 B
CHARMILLES TECHNOLOGIES ConTROL BOARD 852 9010
ABB ROBOTICS DRIVE ConTROL BOARD DSQC 236C YB560103-CC/7
ABB ROBOTICS DRIVE ConTROL BOARD DSQC 236C YB560103-CC/9
TRW NELSON ConTROL BOARD KAS-INTER 1 66-03-82 EC-05-59
ROSEMOUNT 1151 SMART ALPHALINE PRESSURE TRANSMITTER 1151DP4S52
MITSUBISHI ELECTRIC CNC SYSTEM CHASSIS FCA C3M30
MODICON 50 SCREW TERMINAL MOTION MODULE FIELD WIRING BLOCK, 690-MCB-000-00 *NEW*
WAGO 0-10VDC 2 CHANNEL ANALOG INPUT MODULE 750-478 *NEW*
ESCORT MEMORY SYSTEMS MICROMUX INTERFACE MODULE MM80
FESTO FENG 50-50-KF90/ DNG 50-50-PPVA
FANUC DAUGHTER BOARD A20B-2902-0550/?01A *LOT OF 2*
ALLEN BRADLEY 1794-OB16 FLEX DIGITAL 16 CURRENT SOURCING DC OUTPUT MODULE, NNB
ALLEN BRADLEY SLC 500 OUTPUT MODULE 1746-0G16 SER. C *NEW*
KEYENCE KV-24AR PROGRAMMABLE LOGIC ConTROLLER W/ BUILT-IN DISPLAY base UNIT, NNB
CROMPTON INSTRUMENTS 256-TWMU PALADIN TRANSDUCER, NNB
AEG MODICON PROM MEMORY CARTRIDGE AS-E380-902
KAWASAKI 50999-1545 PC BOARD, NIB, SEALED IN BAG
GE FANUC PROGRAMMABLE ConTROLLER 12-24 VDC 13W IC620MDR128C
FESTO, PNEUMATIC LINEAR DRIVE UNIT, SLE-25-300-KF-A?-G-YV-YH
MODICON DEP 209 INPUT MODULE, MANUFACTURER REFURBISHED
ALLEN BRADLEY 1785-05B SERIES A BROAD, NIB
CARRIER 660 005 MOTOR ConTROL KIT, NIB
PHOENIX ConTACT INTERBUS INLINE INPUT TERMINAL BLOCK, 2726285 *NEW*
ABB ROBOTICS 13-SLOT BACKPLANE BOARD, DSQC 229 / 2668 402-143/1
MODICON / GOULD MM-PMSC-000 CABLE ASSEMBLY, NIB
MODICON / GOULD MM-PMSC-000 CABLE ASSEMBLY, NEW
FANUC ROBOTICS TEACH PENDANT ConTROL BOARD A20B-1002-0980/?03B
SONY 24VDC INPUT UNIT SOMIC-OPTC-IN8-?CHAT
SAFE7SCAN DOLAN JENNER RAC0651588 CURTAIN SENSOR
AMBITECH 5HP ELECTRonIC MOTOR ConTROL SS-5G-5M
WTC TIMER MODULE GA03-T14A
UNICO CENTRAL PROCESSING UNIT CPU 314887 REV. 10
TECH MOTIVE TORQUE TOOL ConTROL MODULE 49-4100-03C5 REV. B
ALLEN BRADLEY 6 DIFFERENTIAL INPUTS ANALOG INPUT EXPANDER MODULE 1771-E2C
FANUC ROBOTICS SERVO PULSECODER aA64 A860-0360-T201
VEE-ARC DYNAMIC BRAKING BOARD 930-074 *NEW*
SIEMENS 380-480V 36A BASIC LINE FILTER6SL3000-0?BE21-6DA0
ROSEMOUNT ALPHALINE 0-100 PSI PRESSURE TRANSMITTER 115 1GP6E22
BROOKS MT 3810 VARIABLE AREA FLOWMETER TRANSMITTER 3810A12B1RAA1Q1
BROOKS MT 3810 VARIABLE AREA FLOWMETER TRANSMITTER 3810A11B1RAA1A1
FESTO 24VDC 87PSI 6BAR ConTROL MODULE IC-8M33/2-2
ABB HART 2600T SERIES PRESSURE TRANSMITTER 264DRGSRRSA1 *PROBE*
DATALOGIC AUTOMATIC ID MODULE CM1000
FANUC ROBOTICS ACCUFLOW COUNTER INPUT EE-1063-001 *LOT OF 3*
TEST PRODUCTS T51105-3158 VEHICLE DATA DISPLAY, REPAIRED
ALLEN BRADLEY Flex I/O ISOLATED ANALOG INPUT MODULE 1794-IF4I SER A W/ base
PEAKTRonICS 117 VOLT AC MOTOR ConTROLLER AMC-100
BARBER COLEMAN MACO 8000 MEMORY CARTRIDGE A-13025-202 *NEW*
AEG MODICON 24 VDC OUTPUT MODULE AS-B838-032 B838 *REPAIRED*
ALLEN BRADLEY PLC-5/30 PROCESSOR MODULE, 1785-L30B SER. D
FANUC PCB DAUGHTER BOARD A20B-2900-0530/?02A
FESTO 8-10BAR MANIFOLD ASSEMBLY CPV-18-VI 50446
NAMCO 10-30VDC 4-PIN POWER CLAMP KIT EE280-91100 *NEW*
BARKSDALE TYPE 4 250VDC 600VAC TEMPERATURE SWITCH MT1H-L251-A *NEW*
IBP PHYTRON POWER SUPPLY CARD BD 300 2001900
BALLUFF BNS-519-D02-K16?-062-10 NIB
BALLUFF BNS816-B03-WS-1?2-602-11
GOULD MODICON REMOTE I/O PROCESSOR PCB S908-000 REV A
FANUC PCB DAUGHTER BOARD A20B-2902-0531/?01A
NUMATICS 8 ConNECTOR I/O MODULE 239-1315
PILZ 110VAC, 24VDC SAFETY RELAY PNOZ X3 110VAC 24VDC 3n/o 1n/c 1so
FANUC 24VDC, 0.25A OUTPUT MODULE OD64A A03B-0801-C141
IDEC IZUMI ANALOG INPUT UNIT PFJ-N013A
ALLEN BRADLEY SLC500 PROCESSOR 1747-L542 SER B REV 3 OS # 1747-OS401 SER B FRN 7
FANUC PCB DAUGHTER BOARD A20B-2901-0415/?01A
ALLEN BRADLEY 24VDC 16 POINT SINK SOURCE INPUT MODULE 1792D-16BVT0D SER. A
AEG MODICON PROGRAMMABLE ConTROLLER MODULE PC-E984-381
ALLEN BRADLEY ArmorBlock I/O MODULE 1792-IB16A SER. B
FANUC PCB DAUGHTER BOARD A20B-2902-0070/?08D
ATI TOOL CHANGER MODULE MT8T *NEW*
NSD CORPORATION ABSOCODER ConVERTER MODULE VM-2A-16
FANUC ROBOTICS PCB DAUGHTER BOARD A20B-2900-0480/?B2A
RELIANCE ELECTRIC CPU MODULE O-57407-4B
DANFOSS ConTROL BOARD DDI016 REV 1.3
SUPERIOR ELECTRIC 3.5A 30V TRANSLATOR DRIVE MODULE 430-T
ALLEN BRADLEY 16 PT DC DIAGNOSTIC INPUT 1756-IB16D/A *MISSING WIRING TERMINAL*
TELEMECANIQUE COUNTER MODULE TSXAXT200
SICK 12 POLE MALE / FEMALE CORDSET 7029162 *NEW*
SCHNEIDER MODICON TSX PREMIUM PROCESSOR MODULE TSXP5710
SIEMENS PROFIBUS-DP ET 200S INTERFACE MODULE 6ES7 151-1AA03-0AB0
WEIDMULLER PLC MODULE BOARD 350122
SIEMENS SIMATIC S7 ANALOG HIGH SPEED INPUT MODULE 6ES7 134-4FB51-0AB0
TELEMECANIQUE LOCAL CHAINING JUNCTION TSXLES62
IFM ELECTRonIC FREQUENCY / SPEED MonITOR FR-2 DD2006
PHOENIX ConTACT INTERBUS 2 RTD INPUTS MODULE IB STME 24 PT 100 4/4
