Industrial-strength Ethernet, bolstered by its wireless component, is giving facilities the tools they need to operate lean and mean and succeed in an uncertain economy. As companies seek to identify and eliminate waste, continually improve processes, and respond to the increasing product demands of its customers, they are learning to do more with less, whether it is resources, staff, or money. This white paper examines some reasons and factors influencing the success of the Ethernet infrastructure, while looking at the accelerating presence of its wireless component.
This technical white paper will discuss Yokogawa's CENTUM VP DCS (Distributed Control System) product, hereafter referred to as "CENTUM VP", 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.
CENTUM VP Batch Management is the optional Batch control function for CENTUM VP, which provides recipe management and process management functionality based upon the ISA-88 Batch Control System standard. This whitepaper addresses the use of CENTUM VP and the Batch Management function.
A detailed analysis of Part 11 was performed, the results of which are listed in the Detailed Part 11 Compliance section (section 5) of this document, which supports the compliance of the CENTUM VP system to Part 11.
CENTUM VP is a comprehensive software package containing configurable functions that support Part 11 compliance (audit trails, electronic signatures and electronic records). The system capitalizes on its Part 11 compliance attributes in the marketing strategy of supplying FDA regulated industries with state of the art automation capabilities.
User training and education as well as the development and utilization of policies and procedures are key components of Part 11 compliance which must be established by the user.
Manufacturers are under extreme pressure to increase operational efficiency as a means to increase reliability and maintain margins. Six Sigma is providing a powerful means for companies to improve performance. The use of this methodical, statistics-based approach is increasing across a range of industries. Those in the process industries are discovering the PI System can provide critical support to Six Sigma teams at every step of their effort. This paper discusses how to the PI System can support a Six Sigma initiative. QNI, an Australian minerals resource company, serves as an example.
Communication is more than exchanging data; it means globally understandable information based on syntax and semantics. This is the theory behind IEC 61850, the topic of this issue of ABB Review Special Report.
The Automation and Power World event highlighted ABBs increasing focus on integrating the worlds of power and automation. ARC believes that the cost saving potential of an integrated approach to power and automation is quite high and should provide a strong stimulus for automation project justification in a time of tight budgets and demand for substantial and quick returns.
The benefits of applying the S88.01 standard have been well proven in the industry, although most users have only scratched the surface on achieving these benefits. Some of this dilemma can be attributed to poor application of the standard by users; much can be traced to deficiencies in current tools that are available to the user. The S88.01 batch control standard has been around for five years. Ample time has been available to allow the appropriate tools to be developed that will allow users to take full advantage of the S88.01 standard. Most tools still do not provide enough needed features and flexibility. This paper will discuss ways of improving user application of the S88.01 standard and some of the deficiencies of currently available tools.
Thomas G. Fisher, Operations Technology Manager, The Lubrizol Corporation
A Complete Precision Pressure Measurement Handbook Covering the Fundamentals of Pressure Measurement, Deadweight Pressure Testers, Calibration of Deadweight Testers, AMETEK's Deadweight Testers, Manometers, Secondary Comparison Pressure Standards and the Selection of a Pressure Measurement Standard.
This paper summarizes Sigurd Skogestad's struggles in the plantwide control field.
A chemical plant may have thousands of measurements and control loops. By the term plantwide control it is not meant the tuning and behavior of each of these loops, but rather the control philosophy of the overall plant with emphasis on the structural decisions. In practice, the control system is usually divided into several layers, separated by time scale.
My interest in this field of plantwide control dates back to 1983 when I started my PhD work at Caltech. As an application, I worked on distillation column control, which is excellent example of a plantwide control problem. I was inspired by Greg Shinskey's book on Distillation Control, which came out with a second edition in 1984 (Shinskey, 1984). In particular, I liked his systematic procedure, which involved computing the steady-state relative gain array (RGA) for 12 different control structures ("configurations"); the DV-configuration, LV-configuration, ratio configuration, and so on. However, when I looked in more detail on the procedure I discovered that its theoretical basis was weak. First, it did not actually include all structures, and it even eliminated the DB-configuration as "impossible" even through it is workable in practise (Luyben, 1989). Second, controllability theory tells that the steady-state RGA by itself is actually not useful, except that one should avoid pairing on negative gains. Third, the procedure focused on dual composition control, while one in practise uses only single end control, for example, because it may be optimal economically to use maximum heating to maximize the recovery of the valuable product.
Sigurd Skogestad, Norwegian University of Science and Technology (NTNU)
The right automation solution can meet the goals of specialty chemicals producers by addressing needs for product reliability, quality, agility and efficiency the keys to a sustainable competitive advantage. It will also enable small sites to boost performance and agility, achieve reliability targets, improve quality and drive down costs. Download this white paper to learn more.
This paper presents a simple velocity control algorithm with output modification that has equivalent PI controller dynamic performance. The controller features a single control setting. The controller can be easily configured in most distributed control systems, DCS and programmable logic controllers, PLC. This paper describes the controller structure and behavior as well as a control discussion on how to calculate the gain setting to determine the control period. To test the controller on real processes, the algorithm was applied to a level and temperature control loops in a laboratory, pilot plant setting.
A control algorithm presented by W. Steven Woodward describes a velocity temperature controller  that modifies the output based on the pervious output value when the process variable, PV, crosses the set point, SP. This modification is the algebraic mean of the current calculated output and the output value at the previous zero error crossing. The term coined for this algorithm is "Take-Back-Half", TBH. This algorithm has some acceptance as an embedded application controller. In this paper we will demonstrate how this controller has applicability to the process control community. In section 2, we will describe how this simple controller functions and how to program the algorithm. Section 3 discusses the controller system design and how to determine the gain setting and closed loop period. In section 4 we will present the results of the pilot scale controllers performance. In section 5 we will set forth the conclusions.
More than 30 years ago, the Dow Chemical Co. embarked on what ultimately evolved into a global corporate initiative: to develop and broadly leverage a standardized, highly integrated process automation system, incorporating basic process control, process information and safety system functionality.
This white paper discusses the "Smart Redundancy" capability of GEs revolutionary Quad PAC solution, which includes a patent-pending algorithm that continually calculates the relative system availability in real time and delivers predictive analysis to maintain maximum system availability.
Today's manufacturing companies face many pressures, including rising costs for raw materials, labor and distribution, not to mention customer demands for higher quality at lower prices. This paper explores the use of today's recipe software solutions as a part of a control strategy to transform a company's recipe area from a place of contentious schedule adherence and "rollofthedice quality" to one that can reduce waste while increasing quality to provide a consistent schedule adherence in an environment for continuous improvement.
Download and learn how recipe solutions can improve a company's bottom line.
IDC interviewed 100 manufacturers in the U.K., France and Italy to get more insights into their sustainability approaches. What was asked ranged from how sustainability was linked to business performance and how operational risk management and energy management can be improved to how product safety and compliance costs could be reduced. Download this white paper to find out more about how European manufacturers are tackling their sustainability efforts.