工業(yè)網(wǎng)絡(luò)從誕生發(fā)展到今天，以太網(wǎng)的應(yīng)用幾乎已經(jīng)和PLC一樣普及。但人們對(duì)以太網(wǎng)的了解，卻仍然大多來(lái)自他們對(duì)傳統(tǒng)商業(yè)以太網(wǎng)的認(rèn)識(shí)，對(duì)于以太網(wǎng)的掌握，往往局限于辦公自動(dòng)化商業(yè)以太網(wǎng)的實(shí)施經(jīng)驗(yàn)......