November 2007

Columns

HP Control: Restoring single-loop integrity to process control

With today's evolving strategies for plant automation, many end users are asking: Should process control loops remain in a centralized distributed control system (DCS) or programmable logic controller..

With today's evolving strategies for plant automation, many end users are asking: Should process control loops remain in a centralized distributed control system (DCS) or programmable logic controller (PLC), or can they be implemented in a "truly distributed" architecture with control residing in intelligent instrumentation? Although some companies are reluctant to abandon the familiar DCS or PLC environment, an increasing number of users are now choosing to locate most, if not all, regulatory and advanced control functions in field devices. Background. Starting in the early 1990s, the rise of fieldbus technology had a significant impact on process automation strategies. Plants installin

Log in to view this article.

Not Yet A Subscriber? Here are Your Options.

1) Start a FREE TRIAL SUBSCRIPTION and gain access to all articles in the current issue of Hydrocarbon Processing magazine.

2) SUBSCRIBE to Hydrocarbon Processing magazine in print or digital format and gain ACCESS to the current issue as well as to 3 articles from the HP archives per month. $409 for an annual subscription*.

3) Start a FULL ACCESS PLAN SUBSCRIPTION and regain ACCESS to this article, the current issue, all past issues in the HP Archive, the HP Process Handbooks, HP Market Data, and more. $1,995 for an annual subscription.  For information about group rates or multi-year terms, contact email Peter Ramsay or call +44 20 3409 2240*.

*Access will be granted the next business day.

Related Articles

From the Archive

Comments

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}