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所谓软PLC实际就是在PC机的平台上、在Windows操作环境下,用软件来实现PLC的功能。此概念大约在1996年以后才被介绍到国内来。由于这种技术尚不成熟,所以只有在学术界少数人对此关注。尽管Interllution和Wonderware的HMI和SCADA软件在我国推广都很成功,但它们的软逻辑、软PLC产品P-31和InControl却少有人问津。当然,这两家公司也不曾刻意去开发这个市场。
Think&Do和Steeperchase的VLC都是1998、1999年进入中国市场的,特别是Think&Do花了很大的努力,至今仍不尽如人意。当然有一些成功应用,如邮件分拣系统。我感觉,这多少与它们不采用IEC 61131-3,而是倡导用流程图编程语言不无关系。
德国KW公司在1998年以后就在北京设立办事处,着力推广其符合IEC 61131-3的编程系统MULTIPROG和控制程序ProConOS。
Siemens从2001年开始在国内推介其软PLC系列产品WinAC,已经有了一些应用。他们是很有战略眼光的。德国Inforteam公司的openPCS在国内也开始了市场开拓活动,2002年6月曾在上海的自动化展览会上举办过技术交流。
AFL Noyes TURBOTEST 500B SM Fiber Loss Test Set T50B-4
JDSU OLA-55 SMART Optical Fiber Attenuator OLA 55 OLA55
JDSU Acterna DSAM-3600B Digital CATV Meter DSAM 3600
FIS F1-1550DLX OV-DPM Deluxe Power Meter OV DPM F1-1550
GN Nettest GN-6025 SM Fiber Optical Loss Test Set 6025
Wavetek LANTEK PRO XL 850nm Fiber Cat5 Cable Certifier
EXFO FOT-900 SM Fiber Optic Test System FOT 900 FOT900
LaserPrecision GNNettest FF-1200A SM Fiber OTDR FF-1200
EXFO FOT-910 SM Fiber Optic Test System FOT 910 FOT910
Sadelco MiniMax 800 Signal Level CATV Meter Mini Max
Jilong KL-21B High Precision Fiber Optic Cleaver New
Sunrise Telecom CM750 IP Cable Modem Analyzer CM 750
EXFO BRT-320A Fiber Optic Back-Reflection Meter BRT320A
NOYES OPM 1-2C & GN Nettest LP-5150 MM Fiber Test Kit
Acterna JDSU HST-3000 DSL Tester HST3000 HST 3000 T1
Fluke Networks 672 LANMeter Cat5 Cat5e Network Analyzer
Corning Siecor FuseLite Fiber Termination Systm Cleaver
NORDX / CDT Fiber Optic Repair & Termination Tool Kit
Agilent Wirescope 155 Cat5e Multimode Fiber Certifier
Agilent Wirescope PRO MM Fiber Optic SmartPobes N2647MM
Fluke NetTool 10/100 Network Conctvty Tester PRO Inline
JDSU Acterna HST-3000C DSL Tester HST-3000 ADSLR HST
Wavetek Ideal LT8155 LAN Cable Certifier Cat5 Cat5e
Leviton Fiber Optic Tool Kit With 200x Fiberscope
Fluke Networks OneTouch Series II 10/100 Network Tester
Fluke Networks DTX-NSM Network Service Module DTX NSM
Fluke Networks FT354 Fiber Probe For FT330 FT350 FT400
Fluke Networks Optiview Removeable Hard Drive OPV-RHD
Fluke OPV-PRO OptiView PRO Network Analyzer Console
Noyes TURBOTEST 500 OLT-504 FC SM 1310 1550 Fiber Test
Fluke OPV-GIG OptiView PRO GIGABIT W/ Console Software
Fluke OptiView Network Inspector Software NIS-UNL
Comarco CWT X25 iDEN Cellular Network Optimization Tool
Fluke Optiview Reporter Ethernet NetworkSoftware OV-RPT
Fluke Microtest PentaScanner Plus w Super Injector Cat5
Anritsu MW910A SM Fiber OTDR MH937A MH955A MZ146A
3M Fibrlok 2670 Multi Fiber Optical Splicing System
3M Fibrlok 2601 Multi Fiber Splice Preparation Kit
FIS CMA40 OVDR MM DTF Optical Verifier 850 1300 OTDR
GN NETTEST TD-4791 Optical Spectrum Analyzer Module
FLUKE Networks FT330 Fiber Inspector Video Display
Mille Luce Model M1000 Fiber Optic Illuminator
Mille Luce Model M1000 Fiber Optic Illuminator
Stocker Yale Fiber Optic DualGooseneck 4 Mille Luce1000
Stocker Yale Fiber Optic DualGooseneck 4 Mille Luce1000
Tektronix ORR24, GCT Module, Adapters, Calibration Kit
HP / Agilent 89430A RF Module Section Options AY4 AY8
Lucent Technologies Fiber Optic LC + ST II Tool Kit
Agilent Fiber Optic MM SmartProbe 4 Wirescope 155 350
Allied Amphenol Products DECA-PIERCE Tool Termination
EXFO FOMS-200x SM MM Fiber Optic Microscope FOMS200x
GN NETTEST LP-5150 MM 850/1300 Fiber Optic Light Source
EXFO FTB-7300 SM 4 FTB-100 FTB-200 FTB-300 FTB-400 OTDR
Sunrise Telecom ADSL Module SSxDSL-3 SunSet MTT & xDSL
Fluke Networks Wireless Adapter OPV-WNA2 Optiview II
Applied Instruments Hecters Pup 6106 CATV Return Meter