The task of determining just how much material is in a tank, reactor or other container really doesn't seem like it ought to be such a difficult task. But when faced with the question, the instrumentation engineer has at his disposal a surprising range of sensor technology options. In this Essentials guide, the editors of Control walk through the alternatives, explain how to narrow your choices and uncover the latest application trends. Register to download this document.03/26/2013
The approach that both government and business has taken to ICS cybersecurity of critical infrastructure assets over the last 10 years is systemically flawed and doomed to failure03/04/2013
A new concept for an Electronic Flow Control Valve (EFCV) with pressure compensation capability is introduced. Based on its embedded sensors and micro controller, the EFCV can provide flow control without the need of load/displacement/speed information from the power elements, like hydraulic cylinders or hydraulic motors.02/26/2013
The emergence of new technologies, new ergonomic standards and increased public awareness of workplace health issues have combined to inspire a dramatic shift in console design. Today's control workstations are smaller, more functional and more aesthetically appealing than earlier generations. Download this informational package to learn more.02/22/2013
The Use of Surge Protective Devices in Mitigating the Effects of Lightning Strikes in Offshore Oil Applications
Recognizing the prevalence of lightning strikes in the Gulf of Mexico region, several system specifications and practices written for lightning mitigation have been applied and implemented in offshore applications over the last decade.02/18/2013
This paper covers the importance of securing automation devices for access internally on an Intranet, or externally over the Internet. Choosing an Ethernet Fieldbus offers the competitive advantage of speed, flexibility and accessibility though steps should be taken to secure automation devices and any associated programming workstations and servers. This paper seeks to educate the Controls Engineer on security strategies, technologies and options available.02/13/2013
Globalization is forcing companies to constantly become more efficient. To drive efficiencies, many companies are implementing Lean Manufacturing to stay competitive in this ever shrinking world.02/04/2013
No doubt everyone who has a DCS has encountered alarm management issues and User Interface overload. Why is that you may ask?01/28/2013
This Control Essentials Guide is the first in a continuing series of interactive PDFs by the editors of Control. Essentials of Safety Instrumented Systems is designed to provide process industry professionals with an up-to-date, top-level understanding of the most important SIS issues. From fundamental concepts and terminology to the ongoing debate over integrated vs. stand-alone safety systems, get up to speed quickly on the key technology and marketplace drivers.01/28/2013
In this whitepaper learn how to build scalability into all systems and processes to ensure long-term success.01/21/2013
Understanding the accuracy of a given flowmeter is an important field but it can also be misleading as different specifications are used to explain how accurate a flowmeter measurement actually measures. This paper discusses the different specifications and interprets the impact of them.
Why deal with accuracy?
The reasons for dealing with flowmeter accuracy specifications are many-folded. One important reason is from an economical point of view. The more accurate a flowmeter can measure, the more money you will save as the medium is measured with only very little inaccurately.
Another reason is in terms of dosing, where a given amount of a medium is added. This must be done with a high level of precision and the accuracy is thus important in order to dose correctly. This is critical in certain industries such as in pharma or chemical.
A third reason is in terms of billing purposes. By performing with good accuracy, you know exactly how much fluid flows into the process. Thereby, you are able to determine the right price of the product and thereby bill the customers correctly.
Therefore, knowing how much that flows through your system is paramount in order to make a profitable and solid business. You need to rely on a precise measurement with good accuracy. However, good accuracy must be obtained not only in one measurement, but in all measurements independent of the time.01/21/2013
Learn 5 Reasons to switch to distributed modular I/O01/16/2013
This article describes two independent techniques for ensuring strong security in systems using OPC Classic technology01/14/2013
Preventing the next Stuxnet-like attack on the control world might be impossible, but operators can mitigate the effects and contain worms and viruses through early detection.01/07/2013
Industrial control networks are highly vulnerable to intelligent remote attacks, as well as non-intelligent viruses. With threats to these networks increasing in complexity and scope, decision makers need to take action before it's too late.01/04/2013
This paper examines the benefits and shortfalls of both safety PLCs and configurable safety relays. It also examines a new way of handling safety in industrial automation, "SafetyBridge" technology.01/02/2013
More than 60 percent of all industrial temperature measurement applications in the U.S. use thermocouples. Despite their widespread use, there are many misconceptions about thermocouples. This paper will discuss some of the basic technical issues that engineers need to consider when applying thermocouples.12/30/2012
This white paper identifies the top five challenges typically encountered on the factory floor, and offers some criteria to consider when selecting industrial PCs and associated components.12/28/2012
This White Paper explains:
- What the 3S CoDeSys vulnerabilities are and what an attacker can do with them
- How to find out what control/SCADA devices are affected
- The risks and potential consequences to SCADA and control systems
- The compensating controls that will help block known attack vectors
A number of security vulnerabilities in the CoDeSys Control Runtime System were disclosed in January 2012. In October 2012, fully functional attack tools were also released to the general public.
While CoDeSys is not widely known in the SCADA and ICS field, its product is embedded in many popular PLCs and industrial controllers. Many vendors are potentially vulnerable, and include devices used in all sectors of manufacturing and infrastructure. As a result, there is a risk that criminals or political groups may attempt to exploit them for either financial or ideological gain.
This White Paper summarizes the currently known facts about these vulnerabilities and associated attack tools. It also provides guidance regarding a number of mitigations and compensating controls that operators of SCADA and ICS systems can take to protect critical operations.12/26/2012
Water conservation is becoming a major focal point, both in the public and private sector whether it is due to cost of water, availability of water, or environmental concerns.12/22/2012