First principle relationships can define process cause and effects that can lead to improved controller tuning and performance by the selection of better tuning rules and process variables for scheduling of tuning settings.
This paper will discuss redundant and non-redundant methods for achieving high availability of control systems, as well as improvements in control technology and recommended control system designs. The paper will also highlight features within the Rockwell Automation Integrated Architecture platform and ICS Triplex product lines that can help achieve higher availability.
DONG Energy trusts ABB's System 800xA High Integrity to protect critical gas treatment facilities such as its Nybro gas treatment plant on the west coast of Jutland, Denmark. DONG Energy uses ABB's System 800xA to handle 16 to 25 million cubic meters of natural gas at this plant on a daily basis. Safety is a priority and setting up a fully automated ESD system increases DONG Energy's plant safety levels. Read the full report and learn how DONG Energy integrates ABB's System 8000xA to process natural gas safely.
Sensors used for temperature monitoring and data acquisition can be quite varied. Applications ranging from simple room temperature monitoring to highly sophisticated batch process control can all be highly dependent on obtaining accurate temperature readings. The primary types of sensors used for this purpose are resistance temperature detectors (RTDs), thermocouples, integrated circuit temperature detectors (ICTDs), thermistors, and infrared sensors.
Process engineers are turning to virtualization to extend the lifecycle of their control systems. Virtualization provides hardware independence, which helps to improve system longevity, and increase system flexibility, scalability and uptime. This white paper will describe how to build and deploy a virtual process automation system using VMware virtualization software.
New technology is being deployed into control rooms every day; technology that brings significant increases in productivity as well as the ability to troubleshoot and do root cause analysis. Download this white paper to learn more about how the application of 3-D technology at SCA's pulp and paper plant in Sweden enables operators and managers alike to visualize data in a way that is relevant to their job function.
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.
Making the decision to migrate your legacy DCS is a significant one. But increased productivity, greater efficiencies, lower maintenance costs and less downtime can't be ignored. Our tools can help. Learn more about DCS migration special edition IPDF, whitepapers, videos and more.
Water is a key element to life. It plays an important role in the world economy, as it functions as a solvent for a variety of chemical substances. 71% of the Earth's surface is covered with water and 97% of that water is in oceans and saline. Only 3% of the earths water is fresh and can be found in the polar caps, glaciers, ground aquifers, lakes, swamps and rivers. In parts of the world where there is limited or no access to fresh water, desalination is being used to convert saline water to drinking water. To manage resources and the flow of water, modern electrical pumps and control systems are employed. Water chemical compatibility and electrical interference are two major challenges for the control systems. Let's ook at two major sources of fresh water and the issues that can limit the performance of the control system.
An Objective Look at the Roles of Cesium-137 and Cobalt-60 in Nuclear Measurement Systems for Industrial Processes
Level and density measurements in process control are performed by a number of technologies. When the process temperature, pressure, or chemistry is an issue, then nuclear measurement systems have the advantage. These are non-invasive to the vessel and unaffected by the process pressures and chemistries.
Overall, a nuclear measurement system used for process control consists of a gamma energy emitter and detector. An emitter is placed on one side of a vessel to broadcast a beam of energy to the opposite side of the vessel. The detector is placed in the beam on the opposite side of the vessel. The detector will scintillate in the presence of gamma energy and register counts proportional to the field strength. When the process value (level or specific gravity) is low, the detector will register a high number of counts since less gamma energy is blocked by the process material. When the process value is high, more of the gamma energy is blocked which leads to fewer counts.
The two most common gamma emitters used for level and density process measurements are isotopes of cobalt and cesium. The goal of this article is an objective comparison of the roles of cesium-137 and cobalt-60 in process measurement. This will be accomplished by reviewing the properties of the two materials and then comparing the use of the materials in process measurement.
There are four main strategic decisions you should consider before upgrading your outdated Distributed Control System (DCS) to a new automation system. Download this paper to learn how to define your migration strategy and make the switch with as little risk as possible.
In this new paper, F. Greg Shinskey offers more than a dozen practical ways to reduce cost with process control. These are not theoretical examples, but specific cases from real plants. Learn from one of the masters in the field of process control and see how your plant can benefit today.
Every manufacturing industry is experiencing an increasing speed of business in several areas including changing schedules, customer needs, costs of materials, business models, and technologies. At the same time, many manufacturing sites - particularly in the discrete industries - have growing complexity in their operations which makes it more difficult to adapt. There are more SKUs and data to keep track of due to product proliferation, smaller lot sizes and compliance to government regulations.
The demands for improved speed and agility conflict with the plants' ability to respond. Visibility into current operations, including the control system, is the primary reason manufacturers buy Manufacturing Execution Systems (MES). This visibility provides the information necessary for informed decision making in real-time by all levels of personnel - plant floor to the executives.
MES applications contain the critical business processes for executing a production schedule. These systems perform the production-centric functions of planning, controlling, operating and informing. Control systems execute these functions to produce the goods needed to fulfill customer orders. By integrating MES with control systems, manufacturing becomes more agile for responding to change in this increasingly dynamic business environment. Integrating the control system with the MES allows for more effective and broader set of production management functions to improve operational performance.
To improve their response to operational issues, managers look to technology for connecting plant floor and business systems for automated business processes. Some manufacturers have implemented point solutions on a case-by-case basis. Because of the higher development costs and support issues, this approach is not acceptable. An integration platform is needed.
An unfortunate stumble during DCS migration could trip up your career, but a clear path forward will deliver benefits for decades to come. This first of two white papers walks you through DCS pre-planning step-by-step--from generating baselines to doing gap analysis--for a successful upgrade.