6ES7 223-1BH22-0XA8
6ES7 223-1BH22-0XA8
6ES7 223-1BH22-0XA8
6ES7 223-1BH22-0XA8
4、監(jiān)控范圍廣、覆蓋面廣：
控制要求數(shù)據(jù)通信覆蓋范圍廣，擴(kuò)容無限制，接入地點無限制，能滿足大范圍和跨地區(qū)的接入需求。由于石油信息采集點數(shù)量眾多，分布在范圍較廣，部分信息采集點位于偏僻地區(qū)，而且地理位置分散。而GPRS的特點可以完美體現(xiàn)這一特性。GPRS具有良好的可擴(kuò)展性。由于目前GSM/GPRS網(wǎng)絡(luò)已覆蓋省內(nèi)絕大部分地區(qū)，基本不存在盲區(qū)，可實現(xiàn)大范圍的在線監(jiān)控，滿足監(jiān)控和數(shù)據(jù)采集傳輸對覆蓋范圍的要求。
《聯(lián)系人；歐先生》
《座機(jī)：0592-5709825》
《傳真：0592-5917519》
《24小時熱線：18030229053微信同步》
《QQ ：2479261344》
《QQ郵箱：2479261344@qq.com》
6、系統(tǒng)的傳輸容量大：
多用戶的業(yè)務(wù)復(fù)用，不同的網(wǎng)絡(luò)用戶共享同一組GPRS信道，但只有當(dāng)某一個用戶需要發(fā)送或接收資料時才會占用信道資源。系統(tǒng)依托相應(yīng)的軟件，可以靈活同時實現(xiàn)點～點、點～多點的數(shù)據(jù)傳輸；監(jiān)控中心站要和每一個信息采集點實現(xiàn)實時連接。由于加熱控制采集點數(shù)量眾多，系統(tǒng)要求能滿足突發(fā)性數(shù)據(jù)傳輸?shù)男枰?，而GPRS技術(shù)能很好地滿足傳輸突發(fā)性數(shù)據(jù)的需要。
7、數(shù)據(jù)傳送速率高：
每個監(jiān)控信息采集點每次數(shù)據(jù)傳輸量在10Kbps之內(nèi)。GPRS網(wǎng)絡(luò)傳送速率理論上可達(dá)171.2kbit/s，目前GPRS實際數(shù)據(jù)傳輸速率在40Kbps以上，完全能滿足統(tǒng)數(shù)據(jù)傳輸速率（≥10Kbps）的需求。并且設(shè)備支持?jǐn)?shù)據(jù)傳輸與協(xié)議轉(zhuǎn)換。
8、通信費用低：
采用包月計費方式或按流量收費方式，運營成本低，設(shè)備可定時上下線節(jié)約流量，在不發(fā)送資料的時間里設(shè)備可以處于待機(jī)狀態(tài)，定時或事件觸發(fā)登錄網(wǎng)絡(luò)。
GPRS遠(yuǎn)程終端主要由智能控制器和GPRS模塊構(gòu)成。首先，傳感器采集到工業(yè)現(xiàn)場參數(shù)，并將物理量轉(zhuǎn)化為電信號傳給智能控制器分析處理采集，進(jìn)行傳輸前的數(shù)據(jù)量綱轉(zhuǎn)化，另一方面要控制GPRS模塊的操作，包括啟動和關(guān)閉服務(wù)，建立和關(guān)閉連接，資料與命令模式的轉(zhuǎn)換等，并在資料模式下把經(jīng)過加密和容錯處理后的資料發(fā)送給數(shù)據(jù)服務(wù)器，智能控制器的主要技術(shù)指標(biāo)：
供電類型：DC24V(范圍：9VDC～36VDC)
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