Overcoming Concerns about Wireless PACs and I/O in Industrial Automation Industrial Automation Flirts with Wireless
The automation industry increasingly finds wireless attractive, and for several reasons.
- Running a wired network incurs significant labor and material costs, while wireless networks cost far less.
- Wireless offers connectivity for remote areas or areas not currently served by wired networks.
- Wireless controllers and I/O can manage devices and processes even in inaccessible areas, or areas where network wiring is difficult or impossible to install.
- And wireless can offer a way to provide proof-of-concept for a new project before incurring the expense of a wired network.
For all these reasons, automation engineers are beginning to seriously consider wireless solutions (specifically WLAN, wireless Ethernet, or Wi-Fi) for all or part of their applications.
But with all these good reasons to use wireless, several concerns remain. Among them are security, network performance and reliability, availability and cost of I/O components, and the necessity of choosing between wired and wireless solutions up front.
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.
The specialty chemical industry is facing a number of difficult challenges, including increasingly stringent safety and compliance mandates, higher energy and feedstock prices, and aging plants and equipment all intensified by global competition. Compounding these challenges is the expanding breadth of specialty chemical product categories, forcing manufacturers to dedicate major resources and continuously innovate to maintain market share and capitalize on new opportunities.
Despite the size of the industry and the increase in worldwide demand for all types of specialty chemicals, margins must be managed closely due to rising costs, more demanding customers, and the fact that all products no matter how innovative eventually go off-patent and face stiff competition. While operating a chemical plant is tough business, opportunities exist for companies to optimize their investments and improve both productivity and their financial performance.
Risks prevail wherever people store, process or handle hazardous or toxic materials. In the specialty chemical industry, these risks are compounded because the hazard has the potential to impact a numerous of people. A spill of a toxic agent or explosion could be hazardous to a population within a plant or the surrounding area. One growing area of focus in recent years is the critical value of safety in protecting people, and helping safeguard the environment and plant assets, as well as reducing lifecycle costs.
This paper explores how changes in industry standards and technology developments are expanding how safety systems are applied in specialty chemical applications. It also examines the operational and competitive advantages driving the trend toward separate yet interoperable safety and process control platforms with common development tools. These benefits include reduced life cycle costs, expanded access to process data and improved plant-wide integration.
Selecting the Right HMI Vendor
An HMI partner not only provides the product, but also provides assistance or guidance in HMI application development, training and tools to help you take advantage of technology that reduces overall factory costs. The HMI vendor you select will greatly impact your overall total cost of ownership for not only the HMI, but your processes and machines as well. This white paper will help you determine the needs and wants of your own internal operations that will be used to align company operations requirements with a best fit HMI vendor that provides the right mix of product and service offering.
Improve profitability by learning the benefits of advanced process control technology. Advanced control and real-time optimization tools have become necessary technologies for today's process operating companies to compete and maintain profitable operations. Honeywell has continuously demonstrated the benefits of advanced process control (APC) technology in improving profitability through improved process stability, increased throughput and yield, decreased operating costs, improved product quality and increased operating flexibility. Another benefit of advanced process control is that APC forms the foundation for online optimization, which typically adds an additional 20 percent of the advanced control benefits with project paybacks, often in less than six months.
Economically meeting requirements for monitoring of mobile assets and remote processes always presents project engineers a considerable challenge. While the initial requirements are reasonable, complexityinvariably emerges when the needs of all interested parties are assessed.
This is particularly the case when the asset or process consists of a small number of monitoring points. The requirements can be regulatory or economically-driven. For example, monitoring of combined sewage overflow (CSO) by water utilities meets a regulatory requirement. Compliance with mandates from agencies such as the EPA calls for monitoring of remote locations in which only a single measurement, flow or level, is taken per site.
Monitoring of vendor-managed inventory, such as a chemical level in a tank, is an economically-driven example. Again, only a single measurement, tank level or pressure, is required. Economic goals include customer satisfaction and operation of the delivery/service fleet in the most efficient manner.
Leased generators and pumps exemplify mobile assets in which, at minimum, one or two measurements are recorded. In those cases, however, requirements could grow to dozens of measurements. Customer satisfaction and optimal management and maintenance of the asset inventory are the goals.
The techniques for braking of high inertial loads to a stop traditionally involved either Dynamic Braking or DC Injection Braking technology.
This article examines a new load-braking alternative called High-Slip Braking (HSB). We identify the different aspects of HSB, look at what it does, how it works, and how it is different from other braking methods. We also provide examples of real world successes, and discuss the new technologys cost effectiveness.
Mike Rucinski & Paul Avery, Yaskawa Electric Ameri...
Best Practices Engineering Guide
White Paper FCI's flow meter best practices white paper provides installation recommendations to avoid common performance problems caused by variations in real-world plant operating conditions versus the laboratory conditions utilized in meter calibration. This paper includes specifications and diagrams to solve problems including lack of pipe straight-run, installation orientation and probe depth.
Maximize Safety with Nonstop Production
End users want a safety instrumented system that protects the plant at maximum safety (SIL3) levels, only shuts down on a real process demand and does not shut down for any other reason. History shows that disasters do happen and any plant should be willing to take risks. However, how much risk can a company allow without inviting disaster to happen? Download this white paper to learn how combining integrated safety systems with DCS systems can help you avoid costly plant shutdown disasters.
Designing a Reliable Industrial Ethernet Network
Most of the major manufacturing automation end users and suppliers are using or considering Ethernet as an industrial control option for field devices, drives, power management equipment and special purpose controllers. Engineers and others who design Ethernet networks for these applications must follow correct installation procedures and must select network equipment that will function in plant environments with little or no downtime. This white paper explores network configuration issues and shows how to design a reliable industrial Ethernet network for manufacturing applications.
OPC Technology Helps Maximize Return on Process Historian Assets
Off-line analysis of historical process data is an integral part of process optimization and production tracking. OPC helps maximize return on process history investments. OPC not only provides a standardized mechanism for collection of real time process data, it also enables multi-vendor historical analysis solutions. OPC facilitates highly scalable multi-vendor distributed historian architectures. OPC Data Access (DA) and OPC Historical Data Access (HDA) are two specifications that can be combined to solve many of the process history problems.
It Pays to Give Energy Management a Thought!
In the last few years, the cost of energy has increased many fold, this has made the measurement and management of energy a key area of activity in the industry. As the demand of energy increases world wide, the pressure on resources increases and this leads to the increase in costs. It is a simple issue of demand and supply. Even the environment is under threat due to increased release of greenhouse gasses. In the modern competitive world, tangible costs must be reduced and efficiency optimized to be competitive. Even at the recently G8, targets were set at reducing the emissions released through burning of fuels. It is amazing how we can achieve both goals of lower costs through better efficiency and lower emissions through better energy management.
This paper comments on possible ways to manage energy in a processing plant. More specifically we will concentrate on better energy measurement and increasing efficiency through benchmarking and information management. The author will also offer practical ways to reduce operational costs with small capital expenditure and thus a fast ROI.
Jason Pennington, Madhukar Puniani & Stefan Woehrl...
Automated tracking and tracing all aspects of a product from its initial ingredients or components, through manufacturing and into the supply chain, is not only a requirement in industries such as food and pharmaceutical, it has also become a viable strategy for all businesses. From automotive and metals to appliances and consumer goods, companies rely on tracking and tracing to lower material, production, inventory, labor and scrap costs while improving customer satisfaction.
By being able to see, analyze, manage and store selected data in real-time, companies are able to make swift changes to optimize selected areas within their production capabilities. They are also able to document their processes from incoming raw materials, through production and onto the supply chain.
Alex Cuningham, Online Development Inc.
Cabling Requirements for Harsh Environments
This white paper will explain the difference between traditional commercial controlled environments and harsh, industrial environments as well as the type of cabling and interconnectivity products to specify when designing networks for the later. Additionally this white paper includes information on the two popular standards for measuring and rating harsh environments, IP and NEMA.
APC: A Status Report
The purpose of this paper is to trace the history of the development of process control, advanced process control and related applied engineering technologies, and to discuss the reasons why the industry has encountered difficulties. This paper also presents some recommendations to improve the likelihood of successful APC project implementation, and make some predictions about the future direction of the technology.
Dr. James R. Ford, P.E., Maverick
The Critical Divide of Hazardous Location Luminaire Temperature Testing
Hazardous locations are not created equally. Exposure levels and ignition temperatures of gases and vapors can vary from facility to facility and even from room to room. Illuminating facilities require precisionengineered luminaires that maintain exposed temperatures below the ignition temperatures of the surrounding atmosphere or prevent the ingress of hazardous gases and vapors to hot spots located within the luminaire. Download this white paper to learn and understand the differences in TCode testing and what they mean to the safety of your facility.
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...
Energy Management as a Corporate Strategy
Todays businesses are struggling to find new channels for growth, improve operational efficiency, reduce the cost of energy, and provide a structure for timely decision-making. This paper proposes a framework from which management can develop an energy management strategy.
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.
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- Are you facing OSHA or DHS compliance challenges because your communications systems are out of date?
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Process, instrument and plant engineers are challenged continuously by productivity and plant operating efficiency objectives as well as ensuring plant compliance with an ever expanding list of regulations.
Purge and pressurization is an alternative hazardous location protection concept that allows lesser rated equipment to be used in hazardous areas by segregating the equipment from the hazardous material.
Today's utilities operate in highly productive business environments that are very competitive. As such, they need to comply with stringent regulatory requirements to prevent downtime that may negatively impact customers. A slight failure of equipment can translate to immediate consequences from both a financial and safety perspective.
This next in Control's Essentials series, "Essentials of the Connected Enterprise" provides industrial automation professionals with up-to-date information on the advances in communications and computing technology.
Find out how a full featured embedded HMI for machines can improve operational agility and increase manufacturing performance with less effort. Machines delivered without a full featured HMI can cause operational issues such as lower operational agility, inability to continuously improve, decreased predictability, higher risk and increased total cost of ownership. A full featured embedded HMI can alleviate these issues by providing better information on the plant floor, along with greater connectivity and fast integration into your production system. Download the white paper to get more details on the new Wonderware solution to these problems.