進入90年代以后，由于計算機網(wǎng)絡(luò)技術(shù)的迅猛發(fā)展，使得DCS系統(tǒng)得到進一步發(fā)展，提高了系統(tǒng)的可靠性和可維護性，在今天的工業(yè)控制領(lǐng)域DCS仍然占據(jù)著主導(dǎo)地位，但是DCS不具備開放性，布線復(fù)雜，費用較高，不同廠家產(chǎn)品的集成存在很大困難。

從八十年代后期開始，由于大規(guī)模集成電路的發(fā)展，許多傳感器、執(zhí)行機構(gòu)、驅(qū)動裝置等現(xiàn)場設(shè)備智能化，人們便開始尋求用一根通信電纜將具有統(tǒng)一的通信協(xié)議通信接口的現(xiàn)場設(shè)備連接起來，在設(shè)備層傳遞的不再是I/O（4～20mA/24VDC）信號，而是數(shù)字信號，這就是現(xiàn)場總線。由于它解決了網(wǎng)絡(luò)控制系統(tǒng)的自身可靠性和開放性問題，現(xiàn)場總線技術(shù)逐漸成為了計算機控制系統(tǒng)的發(fā)展趨勢。從那時起，一些發(fā)達的工業(yè)國家和跨國工業(yè)公司都紛紛推出自己的現(xiàn)場總線標準和相關(guān)產(chǎn)品，形成了群雄逐鹿之勢。

Tektronix P6810 34 Channel General Purpose Logic Probe

TEKTRONIX P6860 USPP P6860

Tektronix P6980

Tektronix P6980 34Ch Differential Logic Analyzer Probe

Tektronix P7240 4Ghz Probe Probe

Tektronix P7240 4Ghz Probe Probe Pass

Tektronix P7260

Tektronix P7260 Active Probe

Tektronix P7313

Tektronix P7313 12.5 GHz Differential Probe

TEKTRONIX P7313 12.5 GHz Differential Probe (TEK Connect Interface)

TEKTRONIX P7313 12.5GHz DIFFERENTIAL PROBE + ACCESSORIES #5

TEKTRONIX P7313 12.5GHz DIFFERENTIAL PROBE + ACCESSORIES #6

TEKTRONIX P7313 12.5GHz DIFFERENTIAL PROBE + ACCESSORIES #8

TEKTRONIX P7313SMA 12.5 GHz SMA Differential Probe

Tektronix P7340A

TEKTRONIX P7350 5 GHz Differential Probe recommended for TDS7404B/ TDS7704B

Tektronix P7350 DC-5GHZ Differencial Probe

Tektronix P7350 High-performance Differential Probe

Tektronix P7350SMA DC-5GHZ SMA Differencial Probe

Tektronix P7360A Differential Probe

Tektronix P7360A Differential Probe, 6 GHz

Tektronix P7380 8 GHz Differential Probe

Tektronix P7380 Differential Probe 8GHz,TekConnect tested

Tektronix P7380A

TEKTRONIX P7380A 8.0 GHz Bandwidth Differential Probe

Tektronix P7380SMA 8GHz Differential Probe

Tektronix P7380SMA DC-8GHz Differential Probe

Tektronix P7504 4 GHz TriMode Probe

Tektronix P7504 4 GHz, Trimode Differential Probe

Tektronix P7513

Tektronix P7513 13GHz Tri Mode Probe tested

Tektronix P7513 13GHz Tri Mode Probe with Accessories

Tektronix P7516 High Frequency TriMode Probe

Tektronix P7516 TekConnect TriMode Probe 16GHz

Tektronix P8018

Tektronix P8018 20GHz Single-Ended TDR Probe

Tektronix Parts 067 0422 01Calibration Fixture for P7350

Tektronix PB200

Tektronix PB200 Bit Error Rate Test Set

Tektronix PB-200 Packet BERT Analyzer

Tektronix PB200 packetBERT Bit Error Rate / Wireless & Satellite Test Tranceiver

Tektronix PB200 packetBERT Bit Error Rate Test Set

Tektronix PB-200 Pocket Bert Transmitter Microwave Logic Powers ON

Tektronix PG2011 /02 0.1Hz-50MHz 2ch Pulse Generator

TEKTRONIX QPI-6400A 6.4Gb/s QPI test Interface es formerly Synthesys Research

Tektronix RSA3303A Real-Time Spectrum Analyzer, DC - 3 GHz (opt. 02 21)

Tektronix RSA3408B Real-Time Spectrum Analyzer 8 GHz w/ Opts 02, 06, 10 & 21

Tektronix RSA3408B Real-Time Spectrum Analyzer, DC to 8 GHz + Opt 02 03 05 06 10

Tektronix RSA6114A /02,05,07,20,21,110 14GHz Real Time Spectrum Analyzer

Tektronix RTD710A

Tektronix RTD720

Tektronix RTPA2A, TekConnect Probe Adapter for Real-Time Spectrum Analyzer

Tektronix SCD5000 Transient Digitizer w/ SCD Display Unit

Tektronix SCD5000 Transient Digitizer Waveform Recorder

Tektronix SCD5000 Transient Digitizer Waveform Recorder Vintage Test Equipment

Tektronix SCD5000 Transient Digitizer with Option 1P

Tektronix SD - 46 - 20 GHz Optical to Electical Converter Head

Tektronix SD14

TEKTRONIX SD-30 40GHz DIGITAL OSCILLOSCOPE SAMPLING HEAD

Tektronix SD32 / SD-32

TEKTRONIX SD32 50GHz DIGITAL OSCILLOSCOPE SAMPLING HEAD #4

Tektronix SD43 E/O Converter DC - 8 GHz / 700 - 1650 nm

Tektronix SD44, SD-44

Tektronix SD46

Tektronix SD48

Tektronix SG 5010 Progammable Oscillator

Tektronix SG5010 Oscillators

Tektronix SJ300E

Tektronix SJ300E/03/3C SONET/SDH Jitter Wander Analyzer from Naptech Test

Tektronix SM-11 / SM11

Tektronix SPG300, SD Sync Generator - Half Rack

Tektronix ST104A

Tektronix ST112

Tektronix ST112 SONET SDH Test Set

Tektronix ST112 SONET SDH Transmission Test Set in Great Condition

Tektronix ST112E

Tektronix ST2400

Tektronix ST2400 SONET Test Set

Tektronix ST2400-1310

Tektronix ST2400-1550

TEKTRONIX ST2400A SDH/SONET SET

Tektronix ST2400A Test Set for DWDM Applications

Tektronix TAP1500 Active Probe (Oscilloscopes)

Tektronix TAP2500 2.5 GHz Active Voltage Probe #1

Tektronix TAP2500 2.5 GHz Active Voltage Probe #2

Tektronix TAP2500 Active Probe DEMO MSRP 3740 - SALE 2500.

Tektronix TAP3500 Active Probe

Tektronix TC2000

Tektronix TCP0030 AC/DC Current Probe DC to 120 MHz, 30 A RMS, TekVPI

Tektronix TCP202 AC / DC CURRENT PROBE 50MHz / Tested

TEKTRONIX TCP202 TCP202 AC DC SPLIT CORE CURRENT PROBE 50MHZ