描述
REU610
三菱plc是日系品牌，編程直觀易懂，學(xué)習(xí)起來會(huì)比較輕松，但指令較多。而西門子plc是德國(guó)品牌，指令比較抽象，學(xué)習(xí)難度較大，但指令較少，所以學(xué)習(xí)三菱和學(xué)習(xí)西門子的周期是一樣的。
個(gè)人認(rèn)為三菱(日系的中高端品牌)PLC的軟件至少落后西門子5年以上，大中型的暫且不說，就拿三菱比較有優(yōu)勢(shì)的小型機(jī)FX系列和西門子S7-200系列相比，西門子有如下優(yōu)勢(shì)：
三菱的編程軟件從早期的FXGPWIN到近期的GX8.0(我所知道最新的)，和所有的日系品牌一樣，該軟件的編程思路是自上而下的單一縱向結(jié)構(gòu)，而西門子的MicroWIN則是縱向和橫向兼?zhèn)涞慕Y(jié)構(gòu)，而且子程序支持局部變量，相同的功能只需要編一次程序即可，大大減少了開發(fā)難度和時(shí)間。S7-200一直以來支持強(qiáng)大的浮點(diǎn)運(yùn)算，編程軟件直接支持小數(shù)點(diǎn)輸入輸出，而三菱直至近年推出的FX3U系列才有此種功能，以前的FX2N系列的浮點(diǎn)功能都是假的。S7-200的模擬量輸入輸出程序非常簡(jiǎn)單方便，AD、DA值可以不需編程直接存取的，三菱的FX2N及其以前的系列都需要非常繁瑣的FROMTO指令。FX3U如今倒支持此功能了，但足足晚了五年甚至更多。
當(dāng)然三菱的FX2N系列也有它自己的優(yōu)勢(shì)，一是高速計(jì)數(shù)器指令比S7-200方便，二是422口比西門子的PPI口皮實(shí)（因?yàn)?00系列的PPI口是非光電隔離的，非規(guī)范操作和仿制的編程電纜可能會(huì)導(dǎo)致串口損壞）。
以上的比較僅僅是小型機(jī)，至于西門子的300和400系列以及更大型的TDC系列，這里就無需多言了。?學(xué)PLC，三菱是很容易上手的，因?yàn)橹眮碇比ニ悸泛?jiǎn)單，但從學(xué)習(xí)的角度講，肯定是西門子更好。
產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。
主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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