6SL3224-0BE33-7UA0,6SL3224-0BE33-7UA0
6SL3224-0BE33-7UA0
6SL3224-0BE33-7UA0
控制器分組合邏輯控制器和微程序控制器,
兩種控制器各有長(zhǎng)處和短處。組合邏輯控制器設(shè)計(jì)麻煩,結(jié)構(gòu)復(fù)雜,一旦設(shè)計(jì)完成,就不能再修改或擴(kuò)充,但它的速度快。微程序控制器設(shè)計(jì)方便,結(jié)構(gòu)簡(jiǎn)單,修改或擴(kuò)充都方便,修改一條機(jī)器指令的功能,只需重編所對(duì)應(yīng)的微程序;要增加一條機(jī)器指令,只需在控制存儲(chǔ)器中增加一段微程序,但是,它是通過(guò)執(zhí)行一段微程。具體對(duì)比如下:組合邏輯控制器又稱硬布線控制器,由邏輯電路構(gòu)成,完全靠硬件來(lái)實(shí)現(xiàn)指令的功能。
Yaskawa SGMCS-25D3B11 Servo Direct Drive SGMCS25D3B11
Physio Control Lifepak 7 Cardiac Monitor
union CARBIDE LR-31 DEWAR NO LID
Bausch And Lomb 33-46-10 Benchtop Refractometer
AGILENT HP M1205A PATIENT MONITOR
Dietzgen Surveyors Transit Level 65403
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Vintage Lietz Sokkisha Surveying Transit Level 19015
TEM MICROSCOPE PARTS LOT
THERMOLYNE 2200 HOT PLATE 24X12"
GEORG FISCHER TYPE 317 PLASTIC GATE VALVE 3"
5 GALLONS OF POLYWATER LUBRICANT J HIGH PERFORMANCE CAB
LEITZ SHORT ARC LAMP POWER SUPPLY 1149 100 WATT MERCURY
GRASS VALLEY 8900 DISTRIBUTION AMPLIFIER W/ 2 CARDS
SVR-1100B COMPUVIDIO COMBINATION WAVEFORM MONITOR
BALDOR VMAM3554T 1 1/2HP MOTOR 1725RPM