|Unit Shutdown Design for a Batch Control Application|
|Presented at the WBF North American Conference, Baltimore, MD, April 30–May 3, 2007, by|
|Shashank PaithankarShashank.Paithankar@honeywell.comHoneywell Automation India, Ltd.,56 and 57 Hadapsar Industrial Estate,Pune 411013, India|
It is my experience that the design and implementation of shutdown logic in a batch control application is often done in the Hold and Abort handlers of unit phases. This is evident because most operating characteristics and interactions between unit equipment are observed and controlled by unit phases. But this approach requires a significant amount of programming for Hold and Abort handlers—most of which can be identified as redundant. ...