【PLC】1756-L73///1756-L73模塊

1756-L73

10KV沈陽潔神環境能源科技有限公司變電所新建工程漏電火災監控系統由電氣火災監控設備，電氣火災探測器以及漏電流互感器組成。本項目通訊總線共接入一條通訊總線，總線在配電室手拉手串接后，接入壁掛式后臺，組成電氣火災系統的大動脈。箱體中漏電流互感器通過電流線接入漏電探測器，漏電探測器實時顯示漏電情況。以上所述組成一套信號穩定，精度可靠的電氣火災監測系統。本系統組網共分為三層：

3.1站控管理層

站控管理層針對電氣火災監控系統的管理人員，是人機交互的直接窗口，也是系統的最上層部分。主要由系統軟件和必要的硬件設備，如觸摸屏、UPS電源等組成。監測系統軟件對現場各類數據信息計算、分析、處理，并以圖形、數顯、聲音、指示燈等方式反應現場運情況。監控主機：用于數據采集、處理和數據轉發。為系統內或外部提供數據接口，進行系統管理、維護和分析工作。UPS：保證計算機監測系統的正常供電，在整個系統發生供電問題時，保證站控管理層設備的正常運行。后臺監控設備設置在自維變電所中。

3.2網絡通訊層
通訊介質：系統主要采用*雙絞線，以RS485接口，MODBUS通訊協議實現現場設備與上位機的實時通訊。
3.3現場設備層
現場設備層是數據采集終端，主要為ARCM300系列剩余式電氣火災監控探測器。

1756-L73

1756-L73

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