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PLC制造商已經(jīng)開(kāi)始注視基于工業(yè)PC控制技術(shù)所帶來(lái)的強(qiáng)大沖擊。有專家甚至認(rèn)為，新商務(wù)活動(dòng)所帶來(lái)的新技術(shù)和開(kāi)放技術(shù)規(guī)范將會(huì)埋葬傳統(tǒng)PLC。PLC制造商認(rèn)為，雖然在工業(yè)現(xiàn)場(chǎng)安裝有大量的PLC控制設(shè)備，但他們?nèi)匀恍枰?lián)合工控軟件公司，以便開(kāi)發(fā)他們自己的基于工業(yè)PC的過(guò)程控制軟件。
誠(chéng)然，幾年前在工業(yè)現(xiàn)場(chǎng)明顯存在著新舊PLC混合使用的情況，工業(yè)用戶不得不同時(shí)學(xué)習(xí)相關(guān)的新舊知識(shí)，甚至彼此借鑒學(xué)習(xí)。大多數(shù)PLC制造商為工業(yè)用戶僅僅提供了軟邏輯和一種操作平臺(tái)。
在應(yīng)用方面，很難進(jìn)一步區(qū)分PLC控制系統(tǒng)和工業(yè)PC控制系統(tǒng)之間的差異，因?yàn)檫@兩者均采用了同樣類型的微處理器和內(nèi)存芯片。形象地打個(gè)比喻，如果你忘掉工業(yè)PC和PLC這些詞語(yǔ)字面上的含義，那么在箱子里所能夠觀察到的恰恰是一些基本計(jì)算機(jī)硬件技術(shù)，我們更多觀察到的卻是那些基本技術(shù)的復(fù)雜化和混合體，這些技術(shù)被有效地組合到控制系統(tǒng)中去。
SYMBOL UNIVERSAL BATERY CHARGER FOUR-STATION UBC 2000 NIB
SMITH TOOL COLLET DA-20-0375 NIB
TRERICE REGULATOR 91400-A NIB
SCHUTTE AND KOERTING CO. PURGE METER 1853 105271
MILLIPORE MF MEMBRANE FILTERS SCWP04700 BOX OF 100, NIB
DBI SALA EZ STOP II SHOCK ABSORBING LANYARD 1220006 NIB
KENNAMETAL DLATHE TOOL HOLDER CMNN246D NIB
GREENLEE 4.125'' 104.8MM SQUARE / DIE PUNCH 60178
HOUSTON HS SSSF 37/64 ROSE REAMER END MILL 5335781R
NOSHOK LIQUID FILLED PRESSURE GAUGE in.Hg -30-160psi
FL-TOOL HOLDERS COLLET ADAPTER 11063-C
STANLEY F30L147TA-18 CROWFOOT TUBENUT ANGLE PNEUMATIC CLUTCH SHUTOFF NUTRUNNER
union BUTTERFIELD HSS 19/32 JL TWIST DRILL TAPER SHANK 236H / 4110176 NIB
STANLEY 21oz. 1.3"DIA COMPO-CAST HAMMER 57-532 WORN EDGES
BALDWIN FILTER B7024 NNB
JM CLIPPER OIL SEAL 0187 09189 NIB
CLEVELAND CLE-FORGE HS 9/16" TAPER SHANK TWIST DRILL BIT 705404
FILTER ELEMENT YNA0046573
GENERAL ELECTRIC CONTROL CR245C111A NIB
BIG CHIEF 7500W 240V HEATER BAND 199 BC24200250
NAPA INDUSTRIAL BELT B34 50 NIB
GATES TRI-POWER V-BELT BX70
STEARNS FRICTION DISC 800321101 REV-A NIB
IMPACTO * 13" HICKORY HAMMER HANDLE W VEP MALLET * 325-19
CR OIL SEAL 35716 NIB
MSA 400LBS EP STRYDER ANCHORAGE CONNECTOR 10051455
FLOWSERVE 3.375" MECHANICAL PUMP SEAL P-50 / 69-64-0051 NIB
NORBAR 1500 TORQ WRENCH HEAVY EQIP REPAIR TOOL
DICHTOMATIK TCM OIL SEAL 19283TB-H NIB
INPRO/SEAL BEARING ISOLATOR 1770-A-04125-0 NIB
TWECO 1.2MM CONTACT TIPS 15H-45 LOT OF 20
ZERO GAGE MODEL VE SPINDLE 00479 / 04792658-G-030A?05A
ATLAS COPCO * QRT 62 200 MA723119 NUTRUNNER * 4230 1705 80 * 4230 1705 80
LOVEJOY .4375 COUPLER L-070
RV132C0K303KG 0-30PSI PRESSURE GAUGE NIB
BEI ROTARY ENCODER 924-01082-028, SEALED
INGERSOLL-RAND W/ 33B JACOBS CHUCK DRIVE PISTOL GRIP PNEUMATIC DRILL
HUBBELL CONNECTOR BODY HBL21414B NIB
GATES TRI-POWER BELT BX83
DODGE SEAL ASSEMBLY 043554 / 54TT407 NIB
FIRESTONE AIRMOUNT DOUBLE CONVOLUTED AIR SPRING W01-358-7325
KENDRION ACTUATOR MC 150338 41 42609K01, NNB
SHELER INDUCTIVE HEATING TOOL SH2818
SKF CHICAGO RAWHIDE OIL SEAL 51255 NIB
TORRINGTON WASHER ADAPTER NIB SP242293 / I-1080-A
PTD HSS TWIST DRILL TAPER SHANK NIB 018023 / 0281-7584
LPM FORKLIFT NEEDLE BEARING NIB 1428-1716
WIKA GAUGE * 0-100PSI
MOTOROLA 20-PIN SN74LS273N IK BR8816 LOT OF 18
ADVEL GENEESIS, BREAKSTEM FASTENER INSALLATION TOOL, NIB
MARTIN 22-TOOTH SINGLE ROW SPROCKET 40BTB22H NIB
ISP INTERNATIONAL OIL SEAL R02628 LOT OF 9 NIB
C00112SM BRUSH TIPPED CAPS BOAG OF 100 NIB
DRILL BITS 3.6MM x 6.5IN METRIC PACK OF
BTM PNEUMATIC POWER CLAMP STC52VP-120-733?207H-90AL-SCDC MISSING ARM
SPROCKET 24 TEETH ID. 25.04MM NNB
MAYR COUPLING ROBA-ES 38/940.022, NNB
SEALING RING ASSEMBLY 0356C329G0004 NIB
PRECISION TWIST DRILL TAPER SHANK 20062 209 31/32 NIB
SERVICEFIRST TRANE 60W 460V HEATER CRANKCASE MODEL-H HTR01226 NIB
MIRKA ROYAL 25-612-240 GRIP DISC NO HOLE, LOT OF 50, NIB
SINE/AMPHENOL WY10006BS CABLE AND CONNECTOR NIB
COLUMBIA MARKING TOOLS AIR IMPACT MODEL 288
B-LINE UNI-STRUT CLAMP NIB B435
SPRITZLUFT STEUERLUFT AUTO SPRAY GUN T270054 NIB
union 9/64 HSS TWIST DRILL TAPER SHANK NIB 4210143
GE DS-63 WATTHOUR METER 31 000 492 / 700X63G15
NYTD "J" JOBBER LENGTH TYPE A 118 SPLIT POINT QT.11 NIB EDP 24304
NATIONAL 6.70MM TWIST DRILL TAPER SHANK NIB EDP 12703
GATES TRI-POWER BELT BX67 NIB
GARLOCK KLOZURE 26X2364X4.375 OIL SEAL 246D0-2364 NIB
EAGLE SIGNAL CYCL-FLEX SECONDS TIMER 0-15 SECONDS
GREENFIELD INDUSTRIES CTT-34 17/32X25/32
PTD 19025 25/64 DRB DRILL BLANK HSS
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