*PLC生產(chǎn)廠家約200家,生產(chǎn)300多種產(chǎn)品。國內(nèi)PLC市場仍以國外產(chǎn)品為主,如Siemens、Modicon、A-B、OMRON、三菱、GE的產(chǎn)品。經(jīng)過多年的發(fā)展,國內(nèi)PLC生產(chǎn)廠家約有三十家,但都沒有形成頗具規(guī)模的生產(chǎn)能力和產(chǎn)品,可以說PLC在中國尚未形成制造產(chǎn)業(yè)化。在PLC應(yīng)用方面,中國是很活躍的,應(yīng)用的行業(yè)也很廣。專家估計,2000年P(guān)LC的國內(nèi)市場銷量為15~20萬套(其中進(jìn)口占90%左右),約25~35億元人民幣,年增長率約為12%。預(yù)計到2005年全國PLC需求量將達(dá)到25萬套左右,約35~45億元人民幣。140CPU65160,140CPU65260C
PLC市場也反映了*制造業(yè)的狀況,2000后大幅度下滑。但是,按照Automation Research Corp的預(yù)測,盡管經(jīng)濟(jì)下滑,PLC市場將會復(fù)蘇,估計PLC市場在2000年為76億美元,到2005年底將回到76億美元,并繼續(xù)略微增長。140CPU65160,140CPU65260,140CPU65260C
微型化、網(wǎng)絡(luò)化、PC化和開放性是PLC未來發(fā)展的主要方向。在基于PLC自動化的早期,PLC體積大而且價格昂貴。但在zui近幾年,微型PLC(小于32 I/O)已經(jīng)出現(xiàn),價格只有幾百歐元。隨著軟PLC(Soft PLC)控制組態(tài)軟件的進(jìn)一步完善和發(fā)展,安裝有軟PLC組態(tài)軟件和PC-based控制的*將逐步得到增長。140CPU65150,140CPU65260
當(dāng)前,過程控制領(lǐng)域zui大的發(fā)展趨勢之一就是Ethernet技術(shù)的擴(kuò)展,PLC也不例外。如今越來越多的PLC供應(yīng)商開始提供Ethernet接口。可以相信,PLC將繼續(xù)向開放式控制系統(tǒng)方向轉(zhuǎn)移,尤其是基于工業(yè)PC的控制系統(tǒng)。
140CPU65260,140CPU65260C
HP - AGILENT 3326A TWO CHANNEL SYNTHESIZER W/OPTS
HP - AGILENT 5350B 40GHz MICOWAVE COUNTER W/OPTS5352B
HP - AGILENT 8347A 100 kHz - 3 GHz RF AMPLIFIERCALIBRATED
HP - AGILENT 85032B N-TYPE DC to 6 GHz CALIBRATION KITTESTED
HP - AGILENT 8683A 2.3 TO 6.5 GHz SIGNAL GENERATOR
HP - AGILENT E1401B MAINFRAME W/Modules
HP .01-2.4GHz RF Plug-In 83522A
HP / Agilent 1156A Active Probe
HP / Agilent 11729C Noise Test Set, 5 MHZ - 18 GHZ w/ Option 130 - AM Detection
HP / Agilent 16316A Unbalanced Converter
HP / Agilent 16442A Test Fixture for HP/Agilent 4155A/B or 4145A/B
HP / Agilent 16702A Logic Analysis System W/16500-40502 16557D 16533A
HP / Agilent 16702B Logic Analysis System / Opt. 003
HP / Agilent 3314A20MHz Function Generator
HP / Agilent 3324A Function/Sweep Generator
HP / Agilent 3326A Two-Channel Synthesizer
HP / Agilent 3586A Selective Level Meter
HP / Agilent 4142B DC Source / Monitor
HP / Agilent 4275A Multi-Frequency LCR Meter
HP / AGILENT 5364A MICROWAVE MIXER/DETECTOR
HP / Agilent 54815A 4 Ch, 500 MHz, 1GSa/s, 32K memory depth Digital Oscilloscope
HP / AGILENT 6010A DC POWER SUPPLY 0-200V
HP / AGILENT 6031A DC POWER SUPPLY
HP / AGILENT 60504A 600 WATT DC ELECTRONIC LOAD MODULE
HP / Agilent 6063B 3-240V 0-10A 250W SYSTEM DC ELECTRONIC LOAD
HP / Agilent 6621A is a dual-output, GPIB System Power Supply
HP / Agilent 70004A Spectrum Analyzer w/ 70311A Module
HP / Agilent 70620A Microwave Pre-Amplifier 2-22 GHz Nice
HP / Agilent 81533B Inerface Module
HP / Agilent 81633A Optical Power Sensor Module - Mint
HP / Agilent 83441B Sonet / SDH Lightwave Receiver
HP / Agilent 8350B Sweep Oscillator with 83570A RF Plug-In 18-26.5 GHz
HP / AGILENT 8514B S-PARAMETER TEST SET 45MHz-20GHz w/ OPTIONS 001 & 002
HP / Agilent 8566A Spectrum Analyzer 100HZ-2.5GHZ/2-22GHZ
hp / Agilent 86140, 86140 series STANDARD REPAIR/ DISPLAY INOPERATIVE
HP / Agilent 8642A 100 kHz to 1050 MHz Synthesized Signal Generator
HP / AGILENT 8648B SYNTHESIZED SIGNAL GENERATOR 100 KHz - 2000 MHz W/ OPTION 1EA
HP / Agilent 8648B Synthesized Signal Generator 9 kHz to 2000 MHz 2GHz TESTED
HP / Agilent 8903B Audio Analyzer
HP / Agilent 89430A-AY8 Rf Section - DC to 1.8 GHz
HP / Agilent 89431A RF Section - 2 MHz to 2.65 GHz
HP / Agilent E1410A - VXI Digital Multimeter 6.5 Digits, 75000 C Series Plug-in
HP / Agilent E1410A - VXI Digital Multimeter 6.5 Digits, 75000 Series C.
HP / Agilent E4421A Analog RF Signal Generator
HP / Agilent E4432B 250kHz-3.0GHz ESG-D Series Signal Generator w/ Opt H99 & UND
HP / Agilent E5038B 1.5Gpbs Parametric Measurement Module
HP / Agilent Model 8150A Optical Signal Source 2mW 854NM Laser Head W/ Key
HP / Agilent N1025A 1 GHz Active Differential Probe
HP / Agilent N2772A 20 MHz Differential Probe
HP / Agilent Q8486D Power Sensor 33-50GHz 100PW - 10UW
HP / Agilent R85026A 26.5 to 40GHz Waveguide Detector w/Calibration
HP / AGILENT-N2783A - CURRENT PROBE, 30A RMS, 100MHZ AC/DC /
HP 00915-60004 45 MHz - 50 GHz, 2.4 mm SLIDING LOADf
HP 04085-61651 INTERCONNECT CABLE ASSEMBLY
HP 05372-60007 PCB BOARD
140CPU65160
HP 10898A 10898-68002 Dual Laser Axis VME Module