IC693CPU364輸入信號分別為水流指示器、水壓檢測和手動輸入。其中水壓檢測和手動輸入各占兩點。水流指示器的結構原理為：在水管內安裝一個帶杠桿的橡皮擋板，杠桿一端連接一個微動開關。如果管道內有水流流動，水流就沖開橡皮擋板，其杠桿推動微動開關，使觸點的狀態發生變化。水壓采用電接點壓力表進行檢測。一般情況下如前述四臺泵循環試機運行。一旦發生火警，打開消防噴淋頭或者消防水槍，水流指示器的常開觸點閉合，或者按動消防啟動按鈕，水泵即逐臺按照水壓要求啟動運轉。實際工作中，若*臺水泵投入后水壓達不到所需壓力，壓力表低壓檢測觸點斷開，第二臺水泵自動投入運行。

     The GE Fanuc 90-30 IC693CPU364 is a single slot CPU  that has user programabale memory Depends on assigned values for configurable word memory (%R, %AQ, %AI) at a maximum of 240K Bytes and register memory configurable from 128 to 32,640 words, in 128 word increments.  With 1 built in port the GE Fanuc 90-30 supports SNP/SNP-X master CCM, or RTU slave support; PCM module for RTU master support. GE Fanuc 90-30 has a processor speed of 25 megahertz.

廈門慧星貿易有限公司（同安辦事處）專業銷售美國GE高低壓電器，PLC模塊，停產備件，：  手機  :  ：李工

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廈門慧星貿易有限公司（同安辦事處）專業銷售美國GE高低壓電器，PLC模塊，停產備件，：  手機  :  ：李工