SNMP A New Paradigm for SCADA
This white paper describes how SNMP is applied to asset management and transportation of "shadow data," information on equipment maintenance and security within the SCADA system. Since SNMP has emerged as a very efficient vehicle for transportation of this information, it is feasible for addition to existing systems. The white paper includes descriptions of smart function blocks, which significantly reduce programming efforts when used with Semaphore's T-BOX RTU and Kingfisher RTU product lines.
Semaphore, Vishal Prakash and Robert Casey
Safeguarding Your Plant Automation Systems with Change Management
The increased use of plant floor automation to achieve production goals has created a dependency on PLCs, PC control systems and programmable automation. These devices and their logic programs are costly to develop but vital to the running of the plant, and are viewed by most companies as corporate assets. It is incumbent on plant and corporate management to insure that proper safeguards are in place to protect and manage change in these assets. This paper examines the sources and types of changes that take place in plant automation environments, and the considerations and approaches necessary to safeguard your automation systems through the effective use of a Change Management System (CMS).
Signal Isolators, Converters and Interfaces: The Ins and Outs
The white paper features extensive information on signal isolation and conversion, the instrument selection process, and effective applications. It includes pop-up Isolator Selection Hints, links to data sheets and to helpful areas on Moore Industries web site. The white paper has a tutorial on the basics of signal isolation and signal conversion. The guide moves through more complex topics such as area isolation and splitting a signal, and includes sections on HART isolators and multi-channel isolators. This document provides information on environmental factors to consider when selecting an isolator.
Moore Industries-International, Inc.
An Application of IEEE 1588 to Industrial Automation
This paper describes an application of the IEEE 1588 standard to Industrial Automation. Key application use cases are identified that can benefit from time-based control techniques to improve performance results over traditional control methods. This paper will also briefly discuss how the 1588 standard may be adopted to suit these applications. Application problems specific to industrial automation are enumerated and candidate solutions described.
Ken Harris, Member, IEEE
OPC Bridging Transfers Data between Industrial Automation Systems
Integrators frequently use OPC technology to connect one Industrial Automation system (PLC, DCS, SCADA, HVAC, etc) with another so data can be shared between the two systems. Because OPC technology is based on the Client/Server architecture, the challenge is that two OPC Servers cannot communicate with each other directly. A variety of vendors provide an intermediate software solution, generically called an OPC Bridge, to facilitate this sort of communication. This whitepaper discusses the concept of the OPC Bridge, the solution architecture, required software components, and various features to help Integrators differentiate between different OPC Bridge products.
OPC Training Institute
Shaft Grounding Fulfilling the Promise of Variable Frequency Drives
With the rising cost of energy, the use of variable frequency drives (VFDs) is growing at an increasing rate. By optimizing the frequency of a three-phase alternating-current (AC) induction motors voltage supply, a VFD controls the motors speed and torque while providing energy savings. And, these energy savings can be quite substantial 20% or more making VFDs a green solution as well as a wise money-saving investment.
However, in order to be truly green, a technology must be sustainable as well as energy efficient. Yet the currents induced on motor shafts by VFDs can wreak havoc with motor bearings, dramatically shortening motor life and severely diminishing the reliability of systems. To mitigate these currents and realize the full potential of VFDs, a cost-effective method of shaft grounding is essential.
Adam Willwerth, Development Manager, Electro Stati...
Ethernet: Convergence, Choices, Complexities
Ethernet is penetrating ever deeper into distributed control systems to provide real-time control with direct connectivity to a wider range of devices while the insatiable demand for speed (e.g. 10/40/100G) from commercial applications are driving continual advancements in Ethernet technologies.
This expanded deployment of Ethernet in manufacturing has triggered convergence of disparate network technologies over a single Ethernet-based infrastructure, and this trend has left the controls engineer with new and more choices regarding how to specify and install the necessary network physical infrastructure. It becomes clear that network convergence continues unabated, thereby generating new and expanded network physical infrastructure options.
Shawn Adams, PANDUIT Global Solutions Manager
Video Integrates with SCADA system to Improve Security at Madison,Wisconsin, Water Utility
On September 11, 2001, America was attacked by terrorists and the United States quickly acknowledged
vulnerabilities at our airports, borders, food supply and water supply systems. Soon after, the government
required vulnerability assessments (VAs) for all municipalities with large cities required to go first. In 2002,
Madison Water Utility (MWU) in Madison, Wisconsin, underwent its VA and saw a need for video cameras at
many locations, including 32 remote sites.
Two obstacles stood in the way of Madison meeting this need:
- Technology--whose cameras, network and communication system? How can video work with our SCADA system?
- Money-- who will pay to protect Madisons water supply?
Al Larson P.E., Principal Engineer Madison Water U...
A Users Guide to Pressure Measurement
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.
Open Architectures to Improve Plant Visibility and Performances
Manufacturing companies have invested large amounts of money in industrial automation infrastructures, but many have yet to realize the full value from their investment as many of these infrastructures remain islands of automation; information silos disconnected from other systems, including business systems. This paper discusses some of the options available for integrating automation islands and for distributing information at any level in the organization. Real world examples will be presented to show benefits provided by open architectures.
Video Helps in a Tough Economy
With the economy slowing down on a global basis, managers are reluctant to spend money or move forward on prior plans. Indeed, many companies are postponing or cancelling projects and many have begun cost cutting measures that almost always mean job eliminations.Reducing costs is a responsible management action; the goal is to protect the return on the investors equity. Video can provide a solution to many of the issues that remain, even when people are laid off or factories are closed.
Steve Rubin, President & CEO, Longwatch
Key Performance Indicators
KPIs are an excellent performance measurement tool that businesses in many different sectors employ to improve performance. The key to KPIs is finding a way to quickly gather and simply distribute the key business information without becoming beholden to large, complex databases and applications. The problem is that somewhere along the line the burden imparted by gathering and compiling month-end KPIs has become greater than the value these sometimes outdated numbers represent. How much effort, custom coding, and cost must go into compiling and communicating these measures?
What Portals Can Do For You
Portal technology is invigorating todays corporate environments. The business world began to take portal technology seriously when the price to acquire start-up portal sites, such as My Space and Flickr, exceeded all anticipated market values. Today, portals are big business. Corporations ranging from SAP to Microsoft are investing millions of dollars in portal technology. New technology frameworks and architecture have changed the direction of portal solutions from recreational portals to the enterprise. Networking technology enables users to access portal-based web sites from anywhere and through any device that can connect to the internet. The purpose of this paper is to help you determine how your company can benefit from a portal environment, and from the OSIsoft suite of visualization components. For the first time, you can combine data stored in PI with enterprise systems and other data sources into easily accessible information, visible to individuals, teams, sites, and the enterprise.
Boos ROA with Proactive Asset Performance Maximization Strategy
Industrial enterprises must squeeze the most out of their assets in today's challenging business environment. The price of entry into many markets is operational efficiency plus effective, real-time reaction to changes in internal or external market conditions. Read this white paper to learn how you can boost your company's ROA by maximizing your asset performance strategy.
Industry Directions Inc.
Accelerate Six Sigma Success
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.
Dynamic Energy Response
Energy and information are a significant and growing fraction of manufacturing costs and require lifecycle cost management. New facilities will have to be built and operated in order to conserve resources, and existing facilities will have to be upgraded cost effectively. This is not new economics, regulation, and innovation drive business economics but today the external environment is even more dynamic and requires an appropriate response.
There is little a user can do about regulation, epoch technology breakthroughs, or market changes except monitor their effect and be prepared to change their business strategy; improved management of energy and information, however is under their control.
This white paper provides a description of the utility market, the changes that we can expect, and the reasons behind these changes. It also describes guidelines for the industrial user to develop a dynamic energy response.
Dr. J. Patrick Kennedy, PhD. President and CEO of ...
Risk Control Hierarchy Clarifies Electrical Safety
A clear and realistic set of objectives goes a long way in driving continuous improvements in electrical safety. Resources can be allocated and priorities can be defined once objectives are set. The risk control hierarchy (RCH) in the ANSI-Z10 standard provides electrical safety professionals with an excellent roadmap for setting the right safety objectives that result in the reduction of electrical risks. RCH helps improve a plant electrical safety program and inspires manufactures to improve their electrical equipment designs. RCH provides a mean to measure the effectiveness of an electrical safety initiative much the same way a project management uses financial measurements to evaluate a project.
Phil Allen the President of Grace Engineered Produ...
Benefits of State Based Control
State Based Control is a plant automation control design based on the principle that all process facilities operate in recognized, definable Process States that represent a variety of normal and abnormal conditions of the process. State Based Control, implemented with the latest developments in object-based technologies, delivers direct benefits to its adopters in a variety of Operational Excellence categories. It results in productivity increases, higher asset utilization of both people and process, automated responses and recovery for abnormal conditions and provides an environment for knowledge capture directly into the control design.
Unlike in most processes, mag meters in filling machine applications are frequently subject to widely varying conditions during normal operation. As a result, they are viable candidates for evaluating their long term performance in an accelerated use environment. Therefore PTB, a German research and approvals agency, in association with KROHNE, undertook an extensive project to study the long term measurement stability of mag meters in filling machine applications.
Dipl.-Ing. F. Hofmann and Dipl.-Ing. B. Schumacher...
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The purpose of this article is to improve the understanding of tray cables by defining them, describing the five different types of tray cables and providing accepted uses and standards, including environmental considerations, for each of those types.