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W-9S4E多功(gong)能(neng)電(dian)力儀表能(neng)夠高(gao)精度測量(liang)三相電(dian)網(wang)(wang)系統中所(suo)有(you)常用的電(dian)量(liang)參(can)數：三相電(dian)壓、三相電(dian)流、有(you)功(gong)功(gong)率、無功(gong)功(gong)率、功(gong)率因數、電(dian)網(wang)(wang)頻率、有(you)功(gong)電(dian)能(neng)、無功(gong)電(dian)能(neng)，并(bing)帶有(you)通(tong)(tong)訊接(jie)口和電(dian)能(neng)脈沖輸出功(gong)能(neng)。采用MODBUS-RTU通(tong)(tong)訊協議，實現(xian)LED/LCD現(xian)場(chang)顯示和遠程(cheng)(cheng)(cheng)RS-485數字通(tong)(tong)訊。具有(you)安裝方便(bian)、接(jie)線(xian)簡單(dan)、維護便(bian)利(li)、工(gong)(gong)程(cheng)(cheng)(cheng)量(liang)小、現(xian)場(chang)可編程(cheng)(cheng)(cheng)設置(zhi)輸入參(can)數等特點，并(bing)且能(neng)夠完成與(yu)業界(jie)不同PLC，工(gong)(gong)控計算機的組網(wang)(wang)通(tong)(tong)信。