There are potential challenges and pitfalls of supporting advanced solutions across the areas of process optimization, blending, alarm management, asset management, manufacturing execution systems, and more. This paper discussed best practices and lifecycle support methodologies that address many of the support and maintenance challenges required to sustain advanced solutions benefits.
Download to learn more.08/12/2009
Thirty years ago, specifying an enclosure involved three steps: ordering the appropriately sized gray box, installing sensitive electronic equipment and hoping the enclosure would withstand its surroundings.08/07/2009
Electromagnetic flowmeters, also known as mag meters, are popular and proven devices for flow measurement of electrically conductive process fluids and for volumetric filling machine applications. Of prime importance to a mag meters accuracy and long term performance is the condition of the metering section of the flow sensor.
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.
Faraday's law is the basis of a mag meters measuring principle. The design generally features an electrical isolating liner on the inner wall of the mag meter measuring tube. Linings such as PTFE, PFA or polypropylene or for hygienic reasons, PFA (perfluoroalkoxy) are used. Pressure bearing ceramic pipes are also used. PFA is known to absorb moisture, it can flow under pressure and temperature which means that it changes structure and shape which, in turn, affects the interior diameter of the measuring tube. Changes in the inner diameter of the measuring tube lead to measurement errors. This can lead to problems, especially when extreme precision or repeatability are at stake. This only takes effect after the devices have been in use for longer periods of time and through the corresponding frequent cleaning processes using liquid or steam as are common in the food industry.
The effect is particularly significant when it comes to mag meters used on filling machines for filling PET bottles ("Filling mag meter"). In this case, an extremely high degree of repeatability is required and the quality of the filling process is directly visible in each individual bottle.
That is why, in a joint research cooperative with the Physikalisch-Technischen Bundesanstalt (National Metrology Institute) (PTB), KROHNE Messtechnik tested the measurement stability of filling mag meters. Filling mag meters with PFA liners and filling mag meters with ceramic measuring tubes were both tested. The PTB was interested in this test because for more than 20 years Magmeters with ceramic measuring tubes have been the norm in the normal PTB measuring systems as well as in many other calibration test stations. Thanks to this test, the PTB was able to gain additional knowledge about the behavior of these devices under difficult conditions.07/29/2009
This white paper discusses important differences between the commercialgrade components used in enterprise Ethernet systems and the industrial-grade cabling, connectivity and active devices that are essential to the optimal, longterm performance of robust industrial Ethernet networks.07/29/2009
In the whitepaper, Ethernet Direct describes how PoE technology enables the end devices like Wireless Access Point, IP Phone, IP Camera, IP Access Control terminal, RFID reader and other IP-based appliances to get power supply from a Cat-3, Cat-5/5e or Cat-6 LAN cable without extra power connection needed.07/27/2009
Statement for the Record, July 21, 2009 Hearing before the Subcommittee on Emerging Threats, Cybersecurity, Science and Technology.
I appreciate the opportunity to provide the following statement for the record. I have spent more than thirty-five years working in the commercial power industry designing, developing, implementing, and analyzing industrial instrumentation and control systems. I hold two patents on industrial control systems, and am a Fellow of the International Society of Automation. I have performed cyber security vulnerability assessments of power plants, substations, electric utility control centers, and water systems. I am a member of many groups working to improve the reliability and availability of critical infrastructures and their control systems.
On October 17, 2007, I testified to this Subcommittee on "Control Systems Cyber SecurityThe Need for Appropriate Regulations to Assure the Cyber Security of the Electric Grid."
On March 19, 2009, I testified to the Senate Committee on Commerce, Science, and Transportation on "Control Systems Cyber SecurityThe Current Status of Cyber Security of Critical Infrastructures."
I will provide an update on cyber security of the electric system including adequacy of the NERC CIPs and my views on Smart Grid cyber security. I will also provide my recommendations for DOE, DHS, and Congressional action to help secure the electric grid from cyber incidents.07/22/2009
Despite increased dependence on ever more powerful processcontrol and safety systems, the human aspect remains an integral part of any plant's operation. ABB believes that the safety system of the future is no longer an "addon," that is designed and supplied separately from the rest of the plant or process, but an integral part of it.07/22/2009
This whitepaper provides the history of the Six Sigma Symbol and explanations on the Six Sigma concept, the Six Sigma implementation, the Six Sigma calculation and more. Download this paper now.
Product variation and defects undercut customer loyalty as well as company profits. Six Sigma is a rigorous, disciplined, data-driven methodology that was developed to enhance product quality and company profitability by improving manufacturing and business processes.
Six Sigma uses statistical analysis to quantitatively measure how a process is performing. That process can involve manufacturing, business practices, products, or service. To be defined as Six Sigma means that the process does not produce more than 3.4 defects per million opportunities (DPMO) which translates to 99.9997% efficiency.
A Six Sigma defect is considered anything that can cause customer dissatisfaction, such as being outside of customer specifications. A Six Sigma opportunity is the total number of chances for a defect to occur.
Six Sigma Concept
The Six Sigma concept was developed by Motorola in 1986 with the stated goal of improving manufacturing processes and reducing product defects and variation. The underlying goal was to achieve near quality perfection with 99.9997% of variable values within specifications.07/17/2009
Since the introduction and use of the PLC as a relay replacement device, the uses of small, self contained automation controllers have mushroomed and have changed the complexion and even the architecture of the control system itself. This white paper discusses the benefits of using PACs to solve your company solutions.07/15/2009
What is Conformal Coating and why is it important in Industrial Ethernet switches? In mission critical and harsh environments like where most Industrial hardened Ethernet switches are deployed, conformal coating acts as protection against moisture, dust, chemicals, and temperature extremes that if non-protected could result in a complete failure of the electronic system. These applications include mining, metal industries, oil & gas, military applications, chemical processing and food and beverage industries. For additional protection to address the demands of the environmental conditions, Ethernet Direct offers state-of-the art conformal coating on Industrial Ethernet switches that meets MIL-I-46058C standardEthernet networks will expand in time.
Conformal coatings encapsulate circuit boards and their electronic components in order to prevent the ingress of moisture, fungus, dust and other environmental contaminants. After the coating is made on the switches, it provides environmental and mechanical protection to significantly extend the life of the components and circuitry to meet the challenges in severe industrial environments.
Based on the increasing demands in various industries, customers' are deploying conformal coatings with expectations to increase the performance of the switch, ease of application, sustainability, quality, functionality, and environmental properties. All of the above expectations require special attention and procedure carried out by Ethernet Direct when manufacturing even single Industrial Ethernet switch in order to ensure that all conformal coated designed switches meet the expected standards. Ethernet Direct continuously to improve the environmental performance and offers conformal coatings Industrial Ethernet switches to enhance more specific demands in industrial applications.
A product may suffer from degraded life and accuracy if the PCB surface comes in contact with ionic substances, making it contaminated. The ionic substances can be in the form of fingerprint or humidity. Having applied conformal coating effectively reduces the effects of mechanical stress, vibrations or temperature changes when an Industrial Ethernet switch could be installed.07/14/2009
Surface Acoustic Wave Technology based Temperature Monitoring of High Voltage and High Current Switchgear Boxes
Safety is a big concern when it comes to managing power distribution systems. High voltage and high current switchgear boxes serve an important role in establishing points of control within the power distribution system.07/08/2009
The plant operator has an extremely valuable and important responsibility: being the force and energy managing a capital enterprise easily worth hundreds of millions of dollars to produce or impact a daily revenue stream of millions, give or take. We ask him to be ever mindful of what the plant might be doing. We ask him to be capable of finding every little problem before it grows into a big one. We ask him to shoulder the burden of everything that goes wrong during his watch, all without any recognition when nothing does, and precious little (if not actual blame) when it goes wrong and he manages to manage. Within his area of responsibility and authority he must be able to view every control loop, most sensors, most pieces of equipment, and much of the supporting utilities, and then adjust as appropriate.
The failure to maintain situational awareness has been present in almost every disaster event that was not the result of spontaneous complete surprise. Start with the assumption that no one wants an accident. That no one would chose disaster over success. But accidents and disasters happen. We now know to a high degree of certainty that they happen because those in charge of ensuring that they do not happen, aren't aware that they are happening. They fail to know the situation. They are unaware of what is really going on, what is likely to happen, or what isn't happening that they think is. As explained in my book Alarm Management for Process Control, the solution is facilitated by effective operator interface design. Let's follow the path of interface design that can lead to better situation awareness.07/08/2009
This white paper examines the benefits of variable-frequency drives (VFDs) and special considerations that must be given to their design, installation and operation. The paper also reviews and evaluates the various cable types typically used in VFD systems and conditions affecting their performance such as radiated and common-mode noise.07/08/2009
Amidst the continued heated discussion on the pros and cons of integrated safety systems, market demand - driven by the pursuit of reduced cost, operational excellence and engineering efficiencies - continues to fuel the inevitable integration efforts. This white paper will discuss integrated safety system solutions.07/01/2009
"More" may be "less" when applied to safety systems architecture. Have the terms DMR, TMR and Quad become irrelevant in your safety system building vocabulary?06/26/2009
Connecting unmanaged Ethernet switches in a loop or ring configuration can cause a network storm. Read this white paper to learn solutions that can help you avoid creating a network storm.06/26/2009
Network systems automate many of todays factories and plants, controlling tasks such as data gathering, process control and production automation. Industrial networks downtime can cost a lot of money, so being able to troubleshoot the network quickly and effectively is fundamental to your production process06/17/2009
Although modern fieldbus transmitters have been improved compared to older transmitter models, that does not eliminate the need for calibration. Learn more about how a multi-functional calibrator can reduce time and money spent during commissioning and maintenance in a fieldbus installation.06/10/2009
IEEE 802.11 wireless technology is being deployed rapidly in many industrial plants as the security and bandwidth of these products have improved. The need to gather data from and provide data to equipment and employees moving around a facility is one of the primary applications for these wireless devices. Configuring wireless networks requires careful planning to insure that the network will function as required without causing problems with adjacent installations. This white paper provides a starting point for your wireless design.06/10/2009
Wireless solutions can improve plant performance, safety and reliability while reducing costs and providing realtime data for better decision making.06/09/2009