福建中立恒自动化设备有限公司
目前,世界上有200多个厂家生产可编程序控制器产品,厂家有德国的西门子,美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙,法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面:
(1)向小型化、专用化、低成本方向发展
20世纪80年代初,小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展,新型器件大幅度的提高功能和降低价格,使PLC结构更为紧凑,功能不断增加,将原来大、中型PLC才有的功能移植到小型PLC上,如模拟量处理、数据通讯和复杂的功能指令等,但价格不断下降,真正成为继电器控制系统的替代产品。
(2)向大容量,高速度方向发展
大型PLC采用多微处理器系统,有的采用32位微处理器,可同时进行多任务操作,处理速度提高,特别是增强了过程控制和数据处理的功能。另外,存储容量大大增加。
(3)与计算机联系密切
从功能上看,PLC不仅能完成逻辑运算,且计算机的复杂运算功能在PLC中也进一步得到利用,从结构上看,计算机的硬件和技术越来越多地应用到PLC;从语言上看,PLC己不再是单纯用梯形图语言,而且可用多种语言编程,如类似计算机汇编语言的语句表,甚至可直接由计算机语言编程;在通讯方面,PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面:产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态,这使得PLC的系统功能进一步增强,控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强,使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性,致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品,以求占据市场的更大份额。因此产品向多样化方向发展,出现了欧、美、日多种流派。与此同时,为了推动技术标准化的进程。一些国际性组织,如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准,如对各种类型的产品作一定的归纳或定义,或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应,工业软件的发展非常迅速,它使系统应用更加简单易行,大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分:一是与被控设备相连接的接口电路,另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理,将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成,输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出,以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
SIEMENS 7XV5650-0BA00/BB RS485-FO-Converter Module
SIEMENS Elektr Ausloeser ETU27 MOELLER WITHOUT ACCESSORIES
PILZ PSSu E F PS POWER SUPPLY MODULE 312190 LOT 5 PCS
Schneider Electric EER39300 Wiser EM5 POWER SUPPLY 230V-50/60Hz 9VA W/O ANY ACCS
ABB SD/S 4.16.1 Switch/ Dim Actuator 2CDG 110 080 R0011
MOXA EDS-308 EtherDevice Switch
PHILIPS LFC7590/01 SURGE GUARD 9137 010 35303 W/O ANY ACCS.
MG12/80 GLEITRING DICHTG
LIEBERT 098-01267-02 Intellislot Relay Interface Card W/O ANY ACCS.
WEPRESENT WIPG-1000 Wireless Interactive Presentation
ABB SV/S 30.640.5 Power Supply GH Q631 0048 R0111 - Only
CAREL /AIREDALE PCO1AD0CS0 CONTROLLER- WITH MISSING PART
ABB CDPI-01 PANEL BUS ADAPTER PACKED KIT 3AUA0000118614 - NO
Wago 750-504 (750504) Industrial Control System LOT 8
Wago 750-504 (750504) Industrial Control System LOT 8
GE IC200CHS006H Commications Carrier
ABB BE/S 4.20.1 Binary Input, 4-f, Contact Scanning, I-Bus 2CDG 110 053 R0011
ABB AB/S 1.1 i-Bus EIB GH Q631 0030 R0111
QUANTUM DP-DL01D DMX/EDX TO DALI INTERFACE
EndressHauser LIQUIPHANT T FTL20-0020 WITHOUT ACCESSORIES
TEKNOWARE TST8801 / 8- CHANNEL INTELLIGENT CONTROLLER
SIEMENS QPM2100 DUCT AIR QUALITY SENSOR CO2
CARRIER ALC/ZPS-SW1 AUTOMATEDLOGIC
Ever Shield Ltd., CT16-1RD-UK Flammable Gas Sensor LOT 2
Schneider Electric SR2 B201BD Smart Relay 24VDC 240VAC TRIED
HONEYWELL XNX IVERSAL TRANSMITTER 16-32 VDC 6.5W max. FOR PARTS
LEGRAND SCS 035 62 2-DIN MODULES LEGRAND SCS 038 42 SCS GATEWAY EXTENSION
GE Fanuc IC693MDL645F INPUT 24VDC 16PT POS/NEG LOGIC
ABB SA/S 12.16.1 i-bus KNX Switch Actuator 2CDG 110 082 R0011
CKL 4Kx2K 2 PORT HDMI SPLITTER 1 to 2 HDMI Duplicator WITHOUT ANY ACCESSORIES
TAMURA 2P-P1-16839E/1 POWER SUPPLY PCB CARD - Without
Crompton 253-PVBW Protector Trip Relay
ELSTER ENERGY ICT ELGR101030 DL MUC-GPRS-RF MBUS OMS 2MB W/O ACCS.
Dynalite DDRC820FR Relay Controller
SEL 915900049 / C953 BNC CONNECTOR LOT 1
ABB RTXP18 Metering Circuit
ABB RTXP18 Metering Circuit
DEMKO 99ATEX.9913454 EExnAIIC T4
AST AST4300A00300P4L0000 -0 TO 300 PSI NON-INCENDIVE PRESSURE TRANSMITTER
Philips XR-XRA Interface 5322 694 14808
MARKEM-IMAJE 10028291-AI/ 10030785-AI SIDE 2 PCB BOARD
Danfoss EKC 319A Superheat Controller 084B7251
ABB 2CSM204215R0601 AT1-R DAILY ELECTRO-MECHANICAL TIME SWITCH
JOHNSON CONTROLS IOM3721 / MS-IOM3721-0 REV.L S/W VER.6.2 MODULE W/O ANY ACCS.
ALERTON VLC-651R CONTROLLER LOT 2 WITH BROKEN PART
DEIF LMR-11D Overvoltage Relay
SICK WT12L-2B540 AND WTB12-3P2433 PHOTOELECTRIC SENSOR
MDT KNX AKD-0203.01 Dimmaktor 2fach WITHOUT ACCESSORIES
CEWE DI125 Converter
CEWE DP345 Transducer
Schneider Electric PM5500 Power Logic METSEPM5560 For Parts
Schneider Electric PM5500 Power Logic METSEPM5560 For Parts
Allied Telesis AT-IMC1000T/SFP
CISCO Catalyst WS-C2960CPD-8TT-L Managed Switch
SIEMENS VD11/ 6FQ2421-0AE ISKAMATIC B POWER SUPPLY DIODE
Siemens PXC50.D Modular Series 24vac 50-60Hz W/O ANY ACCS.
Westermo MD-45 LV Converter Transmitter Controller.
SIEMENS Acvatix SSD81 Electrical Actuator AC 24V 50/60HZ
SIEMENS SIMATIC 6EC1710-0A MODULE
GE FANUC IC693PWR330F POWER SUPPLY
GE FANUC IC693MDL645H INPUT
HONEYWELL XFC3A05001 SMART MODULE 24VAC 50/60Hz WITH BROKEN PART
TRANE 418992 MODULE
Agilent G2505-60004 E-4521-43
KEP ELECTRONIC DPM BC4DX DIGITAL PANEL METER
ViSHAY Electronic ESTAMAT MH12 Power Factor Controller - OK
LUTRON LUT-LBX-CE Synthetic Minimum Load - WITHOUT
SIEMENS EU33/ 6FQ2533-0A ISKAMATIC B MODULE
SIEMENS RXC22.1/00022 Room controller for fan coils - ONLY MOTHER BOARD
ABB 768458 I Sulphur Dioxide Detector
LONMARK TAC XENTA 451A IVERSAL I/OUTPUT MODULE 007302850 LOT 2
GE Fanuc IC695CMM002-AB RX3i 2 Channel Serial Commications Module Main Board
AMK AZB Control Panel 44622V-9242-000151
YOKOGAWA F3BL00 BLANK BLOO-ON LOT 4PCS
01 99 01 020 Control Board W11731
iEM3350 Schneider Electric 3Phase Energy Meter, 125 A, Modbus with LCD Display
SmallHD Sony-L Series Battery Bracket for UB Monitors PWR-ADP-UB-SONY
Schneider Electric Telemecanique ALTISTART 01 ATS01N206LU
Schneider Electric BMXXBP0800 MODICON 8SLOTS BACKPLANE PV;01 RL;05 W/O ACCS.
4 CHANNEL DIN RAIL DALI PUSH PHASE CUT DIMMER SR-2303AC-4CH-DIN
PHOENIX CONTACT PSI-MOS-RS232/FO 850 E WITHOUT ACCS.
COMMSCOPE 6089-2-023-08 MAGAZINE FOR 10 PAIRS WITH 3 POLE GDT
DORMAKABA TL-N S 55 UP Nottaster System 55 Emergency Push Button
Saia PCD3.C100 Extension Module -BASE ONLY
SEG EM1-D-DR 8440-1291 REV. Switching Module 12/24VDC W/O ANY ACCS.
TRANE TRACER ZN523 ZController 5709-2509-003 by LonMark V3.1/SV1.02
TRANE TRACER ZN523 ZController 5709-2509-003 by LonMark V3.0/SV1.02
FEDERAL APD 20-11875 REV. E PCB BOARD -WITH BROKEN PART
KV RESONATOR 5322 694 14858
ATM-19E PACKING MACHINE CONTROLLER -TRIED
HONEYWELL 5138284-100 REV.A CABLE- WITHOUT
Eltroma - Technik KZR-4S Short Circuit Relay
DX122 ABB 1SAJ622000R0101 MODULE
SIEMENS LOGO230RC LOGIC MODULE 6ED1 052 1FB00-0BA6 W/ DM16 230R EXPANSION MODULE
HONEYWELL PR-274-R7-VDC PRESSURE TRANSDUCER WITH FHILTY
APC Schneider Electric 640-9613-Z REV10 PCB Board- WITHOUT
TERASAKI EIN-1101 MPU module
STAHL Profibus-DP WCS PG110
ABB RM/S 2.1 RAUM MASTER PREMIUM 2CDG 110095 R0011
PEPPERLFUCHS RD0-FB-EX4.COM FIELD CONNEX FISCO/ENTITY FIELD BARRIER 204715-0010
SIEMENS HTC3.2VB BUILDING AUTOMATION
ABB PP3 STENCIL KIT / CODE : 42001623
Yokogawa 246922-330-AHD-1 AC Voltage Transducer
ABB REF542 PLUS - ONLY SCREEN
EATON FAU1 A1X1PK AUX, SWITCH 600 VAC 1490D72G06
JAU1 CUTLER HAMMER A1X2RTK MEM J FRAME AUX 1XC/0
EATON SOFT STARTER DS7-34DSX009N0D
Schneider Electric MTN646808 KNX REG-K/8x230/6 Switch Actuator
Pilz PNOZ s10 750110 Module
ABB BI-M-4.0.1 Bnary Input 4-g 2CDG510004R0011
Pilz PNOZ s4 750104 Module
Siemens SITOP Power 2 6EP1331-1SL11
Allen Bradley Micro800 Memory Module 2080-MEMBAK-RTC
VORSICHT HEISS 42666401 PRINT HEAD 99245019
MTL 4031 Vibration Transducer Interface Lot 2
Micro Armen LO-B08 Digital Panelmeter LOB08 (FOR PARTS OR NOT WORKING)
Weidmuller 8581180000 WAS4 PRO FREQ Signal Isolator
Elmeasure LG 5310 MultiFction Meter
Schneider Electric TWDLMDA20DTK Extendable it
Allen Bradley 1769-IA8I Isolated Input Module
SEBAKMT LOG N-3 ACOUSTIC PRESSURE FLOW
ASYS 2C3790L02-LT PLC CONTROLLER MODULE CEDIO-P
EATON XMW-OC-40-6-10-150-300MM Moeller Series 167560
SCHNEIDER ELECTRIC SR3 B261BD MODULAR SMART RELAY ZELIO LOGIC
MOXA MGate MB3170
SIEMENS LOGO 24RC OUTPUT 4x RELAY 6ED1 052-1HB00-0BA6
SIEMENS LOGO 24RC OUTPUT 4x RELAY 6ED1 052-1HB00-0BA6
CONTROL MODULE INC 3000-A0808 REV.F CMI GENUS G2 TERMINAL ASSY(MKII,DLX,SO,SBIO)
Schneider TSX Compact ADU 214/AS-BADU-214
CONTROL MODULE INC 3000-A0808 REV.D CMI GENUS G2 TERMINAL ASSY(MKII,DLX,SO,SBIO)
ABB AX521 B4 Analog Input/Output Module 1SAP250100R0001 with TU515 B1
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