【正文】
索引來尋址。the Object Dictionary serves as an interface between the munication and the application.對(duì)象字典中索引的分類3. NMT狀態(tài)機(jī)服務(wù)預(yù)操作(PreOperational)操作(Operational)停止(Stopped)過程數(shù)據(jù)對(duì)象(PDO)否是否服務(wù)數(shù)據(jù)對(duì)象(SDO)是是否同步報(bào)文(SYNC)是是否緊急報(bào)文(EMCY)是是否網(wǎng)絡(luò)管理(NMT)是是是