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Advanced Process Control
FAQs
Robust Quality Estimator (Exarqe)
Product Deployment
Process Response Testing
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Multi-variable Control
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Licensing & Engineering Capabilities
Robust Quality Estimator (Exarqe)
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| Q&A |
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| Exarqe can do both. |
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| An operator inputs the laboratory analysis value and the time when the sample was taken. Exarqe updates the predicted value based on the error between the laboratory analysis value and the predicted value at the sample time. |
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| Yokogawa and Shell Global Solutions have agreed to cooperate in the APC business. As a result, we have significant experience in refinery, petrochemical, and chemical processes. More detailed information is provided on our website. |
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| Bias update: Only the bias term of the prediction model is updated. The model gains are not affected. Kalman filter update : Both the bias term and the model gains of the prediction model are updated using the Kalman filter method. |
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| Standard method : When the absolute value of the error between the reference value and the predicted value exceeds the specified limit value, the predicted value is updated. Cusum method : When the absolute value of the integrated error between the reference value and the predicted value exceeds the specified limit value, the predicted value is updated. Scorecard method : When the error changes according to a specified pattern, the predicted value is updated. |
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