每次OFDT被調(diào)用，它的能流輸入關(guān)斷，CV被更新，以反映定時(shí)器復(fù)位后的總時(shí)間。OFDT持續(xù)向右傳送能量到直到CV等于或超過PV。當(dāng)CV等于或超過PV時(shí)，OFDT停止向右傳遞能流到并停止計(jì)時(shí)。如果PV是0或負(fù)數(shù)，第一次能流輸入關(guān)閉時(shí)被調(diào)用，定時(shí)器停止向右傳遞能流。

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Numatics Valve Regulator VS22-04, C22D-04, F22B #16930

Allen Bradley AC Power Supply Module 1771-P4S #31933

Bosch 0811104112 Valve #10473

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Barber Colman Temperature Control 185 PARTS ONLY #16936

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Reliance 0-51811-1 Voltmeter Tester Card #22289

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