Friday, May 9, 2008

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Articles (64) White Papers (16) News (24) Products (18)

Topic: Control Systems

Achieve effective heat exchanger control
ChemicalProcessing.com
This first article in a four-part series explores the nuances of steam supply control

Are you getting the most from your exchange?
ChemicalProcessing.com
Use a pinch study to gain better understanding of your heating and cooling sources.

We Want to Know
ChemicalProcessing.com
Which factor most strongly influences you when considering a new job?

Make the most of automation upgrades
ChemicalProcessing.com
Avoid common mistakes that undermine projects.

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White Papers: In depth research


Title Author Date
Control for Biopharmaceutical Processes Honeywell 03/17/2008
In many pharmaceutical manufacturing processes, combinations of manual & automated steps are used to track critical data for regulatory submittal. Find out how advanced automation solutions can improve operational effectiveness, help maintain compliance, improve product quality & reduce costs. 
Pushing the Limits: High-Performance Butterfly Valves Reconsidered Metso 03/17/2008
High-performance butterfly valves work smarter instead of harder. That is why they provide a sound alternative to larger, more expensive linear valves and heavier rotary-type designs in a wide range of industrial and commercial applications. 
Automation Solutions for Regulated Industries Honeywell 03/05/2008
This paper highlights the most advanced automation solution for the regulated industries. 
Applying ISA-S88 to Software Migration Engineering Dow Chemical 07/12/2006
Dow Chemical maintains thousands of batch control systems world-wide built on its proprietary MOD 5 computer system. Over decades, they have been meticulous to preserve and enhance these systems. Dow intends to preserve and reap the rewards of this diligence by developing reverse engineering best practices and tools to migrate this intellectual property to next-generation platforms. 
Managing Complex Equipment Status in a GMP Environment Honeywell 06/13/2006
Batch manufacturing systems must maintain the status of equipment, including which are available, dirty, out of service, etc. In industries that enforce Good Manufacturing Practices (GMPs), additional status types and values for process equipment must be maintained. Rules associated with the equipment status can be complex and involve the equipment class, current equipment state and time in the current state. This paper covers the operator interface used to review the equipment status and the interlocking requirements between the recipe and batch phases based on multiple status types. 
Securing Batch Control Systems Honeywell 05/11/2006
Batch process control security is becoming a critical concern for the process control domain, IT technology infrastructure and the business enterprise. This paper explores several key security concerns in batch control system architectures and methods for addressing these issues. 
Fieldbus and remote I/O system comparison Aventis, Infraserv GmbH 02/10/2006
Nine manufacturers participated in the FuRIOS study, which was conduced under the lead of an end user company that compared its use of fieldbus and remote I/O in full detail. 
Design Tips for Sensing Probes Delta Controls 01/05/2006
This application note from Delta Controls outlines selection and installation criteria for using admittance probes to monitor the level of powders, liquids and other materials. Dielectric constants of more than 200 materials are included. 
Specifying industrial fieldbus networks for automation Texas Instruments 10/12/2005
Automation designers face many challenges and tradeoffs in the development of a successful network solution. This white paper discusses the necessary choices in selecting a network technology appropriate for various specific applications. 
PACs for industrial control: The future of control National Instruments 09/14/2005
With a number of vendors producing Programmable Automation Controllers that combine the functionality of a PC and reliability of a PLC, PACs today are increasingly being incorporated into control systems. This white paper explores the origins of the PAC, how PACs differ from PLCs and PCs, and the future direction of industrial control with PACs.  
Derivative Action - The Good, Bad and Ugly ExperTune 02/16/2005
Should you use derivative action with your controllers? This whitepaper discusses the positives and negatives of derivative action. 
How to control a process with long dead time ExperTune 01/11/2005
A process with a large dead time presents a special challenge for a controller --  any controller. This short paper explains how to get the best control of large dead time processes. 
Ziegler-Nichols Tuning Rules And Limitations ExperTune 11/19/2004
The standard reference for PID tuning seems to be the Ziegler-Nichols tuning rules developed in 1942 on a pneumatic controller. Here is how to tune a controller using these rules. 
Digital Fieldbus Installations use EDDL Technology for Simplicity 10/21/2004
In this paper, Martin Zielinski of Emerson Process Management examines the reasons for the improvements and expansion of IEC 61804-2 Electronic Device Description Language (EDDL).  
Achieve 21 CFR Part 11 Compliance 10/12/2004
This technical white paper discusses Yokogawa’s CENTUM CS 3000 R3 DCS (Distributed Control System) product and the extent of its compliance with Part 11 of Title 21 of the Code of Federal Regulations (21 CFR Part 11), the Electronic Records/Electronic Signatures Rule.  
Succeed at Alarm Management 10/11/2004
Today's control system make it easy to add alarms. The result has been a proliferation of alarms that can overwhelm an operator and actually obscure situations that really require immediate attention. This paper provides practical guidance on effective procedures that can significantly reduce nuisance alarms and improve operator effectiveness. 
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Timeless Resources

Digital Input/Output
This article explains the features and capabilities of new industrial digital input/output devices.