1、雙向高速計數(shù)信號查看
S7-214CPU模塊具有多路高速計數(shù)輸入查看端口，可靈敏規(guī)劃完結多路單向、雙向計數(shù)信號的查看。在旋挖鉆機上運用其雙向高速計數(shù)功用完結了上車反轉(zhuǎn)視點查看、鉆頭鉆孔深度查看。
旋挖鉆機上車有些為液壓驅(qū)動的獨立旋轉(zhuǎn)組織。在規(guī)劃中選用旋轉(zhuǎn)編碼器查看其滾動視點，經(jīng)過對編碼器A、B兩路脈沖信號的查看，PLC的雙向高速計數(shù)輸入端可精確計算出旋挖鉆機上車的相對視點（0-360O）改動值。
一同PLC的復位信號輸入端查看編碼器的C信任號，在上車每次反轉(zhuǎn)至編碼器的一固定方位時將高速計數(shù)器內(nèi)變量清零，可消除各種因素形成的計數(shù)差錯，保證計數(shù)的精確性。
鉆頭鉆孔深度查看的原理與上車反轉(zhuǎn)視點查看根本相同，但復位信號選用按鈕輸入，由操作人員依據(jù)狀況校準鉆頭深度零位值。在查看運算上鉤數(shù)值為鉆頭深度改動值。
2、左右操控手柄多路按鈕信號的查看
旋挖鉆機的操控首要經(jīng)過駕馭座椅左右兩個操控手柄的多個按鈕操控完結，經(jīng)過對PLC的指令編程，可變換完結按鈕信號的上升沿、降低沿、延時操控等多種邏輯功用。
3、外部傳感信號的查看
西門子S7-200系列PLC輸入信號查看選用光耦隔絕電流信號查看，可隔絕輸入信號線上因各種因素導致的非正常電氣信號，電流信號查看方法可有用防止外部強攪擾對正常信號的查看。一同各輸入端輸入信號的濾波時刻可依據(jù)需求別離設置。

廈門興銳達自動化設備有限公司

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