計器制御回路
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この投稿は最後にxzzgjxmfによって2017-7-31 09:11に編集されました。フィードバック付き電磁弁
DCS：DO出力、DIフィードバック
電磁弁がバルブの開閉を制御し、バルブ位置はDCSに戻される。
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