InterviewSolution
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InterviewSolution
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What Is Open Loop & Close Loop? |
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Answer» OPEN LOOP: This is nothing but to sense the process signals from the field and to SEND it to the control ROOM for operator monitoring only. CLOSE LOOP: This is measuring the process signals for operator’s ACTION. Means Tx sense the process and send it to the control room. Where the PID controller takes control action and that given to the FINAL control element as per the process REQUIREMENT. OPEN LOOP: This is nothing but to sense the process signals from the field and to send it to the control room for operator monitoring only. CLOSE LOOP: This is measuring the process signals for operator’s action. Means Tx sense the process and send it to the control room. Where the PID controller takes control action and that given to the final control element as per the process requirement. |
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