1746-NI16V/1746-NI16V AB
1746-NI16V/1746-NI16V AB
控制器的網(wǎng)絡(luò)化應(yīng)用和遠(yuǎn)程監(jiān)控服務(wù)的結(jié)構(gòu)見圖2。
圖2 控制器分布式應(yīng)用框圖
在現(xiàn)場各個(gè)設(shè)備上的控制器可以獨(dú)立工件,也叮以通過有線或無線的網(wǎng)絡(luò)連接起來,可以形成一個(gè)監(jiān)控剛絡(luò),部分控制器可以選擇視頻采集功能,通過通訊網(wǎng)絡(luò)把圖像傳遞到監(jiān)控PC上,甚至可以通過服務(wù)器和Internet向異地計(jì)算機(jī)進(jìn)行圖像傳遞:控制器和監(jiān)控PC的無線傳輸通過連接九線模塊進(jìn)行,無線數(shù)字收發(fā)模塊負(fù)責(zé)信道估計(jì)、補(bǔ)償、信號檢測與基本的差錯(cuò)控制(如出錯(cuò)重傳,前向糾錯(cuò)等)。
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