The debate over the virtues of DCS vs. PLC has been ongoing since these two architectures came into existence 40 years ago. For certain industries, a distributed control system (DCS) provides substantially more value as the basis for automating the plant than a programmable logic controller (PLC)-based system. As functionality differences narrow and price points align, the debate over these virtues is getting more intense and the arguments for and against each system are getting more and more murky. This white paper discusses the “Top Ten” issues to consider when evaluating a DCS vs. building your own “DIY” distributed control system using a PLC-based architecture.
Breakdown of organic wastes entering a wastewater treatment plant is accomplished by using a biomass or blend of beneficial microscopic organisms, bacteria, and solids. This converts the nonsettleable solids (dissolved and colloidal matter) into settleable solids, carbon dioxide, water, and energy. This paper reviews the most common stages for measuring and controlling dissolved oxygen in a wastewater treatment plant.
Chemical Processing Special Report: Secure plan(t)
In the decade before Stuxnet attacked process control systems in Iran, there were just five known supervisory control and data acquisition (SCADA) vulnerabilities for all control systems in the world, according to the U.S. Department of Homeland Security’s Industrial Control Systems Cyber Emergency Response Team (ICS-CERT). In 2011, the year after Stuxnet, that vulnerability count jumped to more than 215. Last year, it reached 248 (Figure 1). No surprise then that Chemical makers are increasingly focusing on protecting their process control systems from intrusion both from the inside and outside. In this Chemical Processing Special Report: Secure plan(t), we take a look at:
How to better protect your control system - “Defense in depth” is crucial, and new and maturing technologies may help
Cyber Security Challenges – learn about countermeasures to protect control systems
Case Study: A vulnerability assessment reveals critical gaps in the security of a natural gas pipeline
How to mitigate security risks in legacy process control systems - several steps can help protect against threats and extend the life of legacy equipment
Learn how to secure your process control systems – and your plant. Download your copy of this Chemical Processing Special Report: Secure plan(t) now.
Know Your TCO: A look at Medium Voltage VFDs
Medium voltage VFDs are high cost, high consideration assets that greatly improve process control and efficiency in manufacturing facilities. It is vital that you and your company understand the TCO of this asset. Download the white paper for more information.
Special Report: Making the Most of Migration
Perhaps the most critical challenge facing the automation industry is that of aging control systems at or near the end of their product lifecycles. A legacy control system can suffer from technical, functional or supply obsolescence. With a well-planned and executed control system migration, however, plants can improve availability and reliability, while increasing production flexibility. In this Chemical Processing Special Report: Making the Most of Migration, we take a look at: Obsolescence planning – addressing concerns and planning for a successful evolution strategy; Restoration Possibilities – how new tools and innovative methods support and breath new life into aging distributed control systems; DCS Migration; More!
Download your copy of this Chemical Processing Special Report: Making the Most of Migration now!
Chemical Processing Special Report: Jacketed Heating
Reactor temperature control typically is very important to product quality, production rate and operating costs whether a processor is employing continuous or batch reactors.
Download your copy of this Chemical Processing Special Report: Jacketed Heating now!
No More Risky Business With Virtual Patching
Patching process control system software to remove security vulnerabilities is fraught with risk. System issues can be the result of installing a patch, but a system is also vulnerable without patching. Fortunately, virtual patching can improve the process and raise the system’s security at the same time.
No More Tears for Control System Migration
While upgrading process control systems is vital to maintaining a plant’s performance, the migration process often brings confusion and frustration for customers. See how Honeywell keeps control systems running at the best possible performance throughout the migration process and into the future.
PRALCA’s Path to Modernization
With an aging installed legacy Distributed Control System (DCS), the PRALCA petrochemical plant needed advanced control strategies to improve plant efficiency. Find out how a comprehensive migration solution extended the life of plant equipment and provided a cost-effective path forward to the latest automation technology.
Expanding Production at FMC Lithium
FMC Minera del Altiplano, a leader in the mining of lithium ores and brines, wanted to automate its production processes but lacked sufficient capacity to keep pace with continuous operational improvements. See how FMC expanded processing capacity while minimizing risks to critical plant information.
Chemical Processing Special Report: Migration
"Migration could be the biggest single issue facing automation end-users today," stresses a report from the ARC Advisory Group. ARC estimates that installed automation systems worth about $65 billion are reaching the end of their useful lives. Distributed control systems (DCSs) more than 20 years old will need replacement within the next ten years. In this Chemical Processing Special Report: Migration we cover:
Updating process control systems – understanding the challenges and missteps to avoid
Case Study: FMC Corporation – we look at the production processes, operational challenges and automated solutions this diversified global chemical company chose when migrating their DCS
Case Study: PRALCA – control systems migration for a petrochemicals facility
The business case for control systems migration - strategies for protecting investments, improving business results and reducing risks
Staying Competitive in the Changing Chemical Manufacturing Marketplace
Positioned at the core of most supply chains, chemical firms must deal with many challenges to growing profitably -- flat demand, deflationary prices, and emerging competitors to name a few. Both chemicals firms large and small must develop the insight to change and win in today's ever-morphing competitive landscape. This white paper identifies and discusses how chemicals companies can combine data from many sources -- multiple ERP systems, multiple divisions and multiple applications -- maintenance, human capital, CRM, and supply chain to name just a few -- to create a complete or holistic view for critical decisions. Download now.
Choosing the Right Emissions Control Option
Determining the most economical option to control airborne emissions during chemical process operations presents several unique challenges. As with any add-on control system, the goal is to minimize the annualized total costs while maintaining proper operation. In this white paper, learn the different options that are available and which ones fit your process the best.
Process Analytics and Intelligencesometimes called Manufacturing Intelligencehas transformed the way companies produce goods, understand their manufacturing processes, and ensure a quality product in ways we could not have foreseen ten years ago.
There are a host of enterprise resource planning (ERP) and supply chain management applications available to chemical manufacturersthe challenge is selecting the right one that offers a baseline product with industry-specific functionality. Many ERP applications available today are not industry-specific enough for chemical manufacturers and require major modifications, or, one must select from an industry template that may or may not fit specific needs.
There is also the chance that the software provider may not exist in two to three years (e.g., it may be acquired and the products future may become unknown), or the provider may not be financially secure, adding long-term risk.
Learn about new pilot plant development methods.
Understand the role operational guidance plays in successful pilot plant development.
Continental Technologies LLC, Pilot Plant Design, ...
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.
David Huffman, ABB Inc.
Special Report -- Control With Flow
With changes in temperature, pressure, density and viscosity all affecting volumetric flowmeter measurement, how can continuous processors accurately measure the flow of fluids? Download this Special Report to find out how Coriolis flowmeters provide a direct mass measurement that is unaffected by changing process fluid characteristics improving both accuracy and optimizing operations at your plant.