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Blog - Post List

DeltaV Blog: Offshoring Control Rooms?

Jim Cahill

Emerson’s Anand Iyer explores offshoring control rooms in today’s guest post. I wonder what Elmore Leonard would have said to this. Every generation faces an extinction of a profession and many struggle to get on with the next. On my way to work, on the...
- 28 Aug 2013
DeltaV Blog: Control System Health Monitoring

Jim Cahill

Emerson’s DeltaV team has put together a 4:22 Youtube System Health Monitoring video showing how system experts located remotely can help diagnose and work with local maintenance personnel to avoid problems before they lead to downtime. In the video,...
- 26 Aug 2013
DeltaV Blog: Neural Networks for Property Estimation

Terry Blevins

One of the key objectives of a process control system is to maintain product quality parameters within specifications. An on-line analyzer may not be available to make a sampled or continuous measurement of a physical property or the composition of a liquid or gas stream, or other conditions may prevent their use. In such a … Continue reading » Read the full text.
- 26 Aug 2013
DeltaV Blog: Fuzzy Logic Control – Example

Terry Blevins

In this fuzzy logic control workshop contained in Chapter 6 of Advanced Control Foundation – Tools, Techniques, and Applications, the control performance of fuzzy logic control is be compared to the performance of PID control. For this example, the control objective is to reach setpoint in minimum time with no overshoot. Two identical process heaters … Continue reading » Read the full text.
- 19 Aug 2013
DeltaV Blog: Updated DeltaV SIS Hardware Carriers Product Data Sheet

Larry Griffin

There are three types of carriers used for DeltaV SIS hardware – the logic solver carrier, the SIS controller carrier and the SISNet Repeater carrier. All hardware carriers are mounted on a T-type DIN rail. (695KB PDF) Read the full text.
- 15 Aug 2013
DeltaV Blog: Fuzzy Logic Control – Commissioning

Terry Blevins

To allow consistent implementation of control applications, fuzzy logic control may be implemented as a function block. The fuzzy rules and membership functions can be predefined except for the scaling of the membership functions for error, change in error, and change in output. As addressed in Chapter 6 of Advanced Control Foundation – Tools, Techniques, … Continue reading » Read the full text.
- 12 Aug 2013
DeltaV Blog: VEGA Minitrac31 Rev 2 and Fibertrac31 Rev 2 Fieldbus Device Files

Larry Griffin

In Emerson’s continuing commitment to open and interoperable standards, the VEGA Minitrac31 Rev 2 and Fibertrac31 Rev 2 have passed the rigorous and comprehensive testing of the DeltaV Stress Test labs. Using the Device Installation Kits for Emerson Products website at http://www2.emersonprocess.com/en-US/documentation/deviceinstallkits/Pages/deviceinstallkitsearch.aspx, these fieldbus device files are now available for…
- 12 Aug 2013
Safety Instrumented Systems Blog: Applying Layer of Protection Analysis to Driving Automobiles

Jim Cahill

Emerson’s Anand Iyer applies process safety thinking to automobiles. Statistics put highway accidents as the largest human killer. More people die in automobile accidents than in the wars of the modern world, nuclear power plants or process plants. We...
- 6 Aug 2013
DeltaV Blog: Press Release: Emerson support services help increase throughput and reduce energy usage at MOL gas processing plant

Larry Griffin

Industry and technology expertise have enabled continuous improvement of plant systems and processes AUSTIN, TEXAS (August 5, 2013) — Emerson Process Management’s support services have helped the MOL Group increase throughput, improve product quality and reduce energy usage at the Algyõ gas plant in Hungary. Control loop audits, advanced process control project management, and model [...] Read the full text.
- 6 Aug 2013
DeltaV Blog: Press Release: Emerson automation technologies and services help INA Rijeka refinery meet latest European fuel specifications

Larry Griffin

Emerson coordinates complex automation project involving multiple EPCs and helps ensure on time start-up and efficient operations AUSTIN, TEXAS (August 2, 2013) — Emerson Process Management has successfully completed a project to install integrated automation and safety systems on three units at a new hydrocracking complex at the INA Rijeka refinery in Croatia. The plant [...] Read the full text.
- 6 Aug 2013
DeltaV Blog: Fuzzy Logic Control – Implementation

Terry Blevins

To minimize the time needed to apply fuzzy logic control, most manufacturers offer a version of fuzzy logic control in which the rules and membership functions are pre-defined. As described in Chapter 6 of Advanced Control Foundation – Tools, Techniques, and Applications, , a manufacturer can provide support for auto-tuning by restricting the fuzzy logic … Continue reading » Read the full text.
- 5 Aug 2013
DeltaV Blog: Updated DeltaV Obsolete Server Replacement Product Data Sheet

Larry Griffin

The DeltaV Obsolete Server Replacement provides new server hardware to replace legacy servers for DeltaV v9.3.1 and v10.3.1. (390KB PDF) Read the full text.
- 2 Aug 2013
DeltaV Blog: Fuzzy Logic Control

Terry Blevins

Fuzzy logic is a relatively new control technology. In the mid-1970s Mamdani began to investigate fuzzy logic as an alternative to the PID controller and sparked the first practical applications of fuzzy logic in the process control industry. The controller followed rules that generated an output by evaluating the error and the change in error. … Continue reading » Read the full text.
- 29 Jul 2013
DeltaV Blog: Updated DeltaV Virtualization Hardware Product Data Sheet

Larry Griffin

The DeltaV Virtualization Hardware has thoroughly tested and supported computer and peripheral devices for use with DeltaV Virtualization, including host servers, storage area networks (SAN), thin clients, and network switches. (420KB PDF) Read the full text.
- 23 Jul 2013
DeltaV Blog: Adaptive Tuning – Example Application

Terry Blevins

It is often possible to spot where adaptive control is needed by observing trends of control loops that show the control parameter and valve position during a time period when the process conditions change over their normal span of operation. If the control performance varies with changes in operating conditions, then adaptive tuning may be … Continue reading » Read the full text.
- 22 Jul 2013
Operations Management Blog: Aligning Stakeholders in Operations Management Projects

Jim Cahill

The ISA-95 (IEC 62264) Enterprise-Control System Integration (part 1, part 2, part 3, part 4, part 5) international standard provides a model to help define the boundaries between the enterprise systems and process control systems. As manufacturing operations...
- 18 Jul 2013
Operations Management Blog: Aligning Stakeholders in Operations Management Projects

Jim Cahill

The ISA-95 (IEC 62264) Enterprise-Control System Integration ( part 1 , part 2 , part 3 , part 4 , part 5 ) international standard provides a model to help define the boundaries between the enterprise systems and process control systems. As manufacturing operations seek to gain competitive efficiencies, this integration also involves a great number of people and their associated work processes within the organization…
- 18 Jul 2013
Operations Management Blog: Aligning Stakeholders in Operations Management Projects

Jim Cahill

The ISA-95 (IEC 62264) Enterprise-Control System Integration ( part 1 , part 2 , part 3 , part 4 , part 5 ) international standard provides a model to help define the boundaries between the enterprise systems and process control systems. As manufacturing operations seek to gain competitive efficiencies, this integration also involves a great number of people and their associated work processes within the organization…
- 18 Jul 2013
DeltaV Blog: Adaptive Tuning – Field Experience

Terry Blevins

The adaptive tuning capability included in DeltaV was field tested at four customer sites during the initial stages of product development. This field trail was conducted over a six month period and include over 1000 control loops. One of the field trail sites was at Lubrizol, Deer Park, TX where this adaptive control capability was … Continue reading » Read the full text.
- 15 Jul 2013
DeltaV Blog: Updated M-Series Virtual I/O Module 2 Product Data Sheet

Larry Griffin

The M-Series Virtual IO Module 2 (VIM2) simulates M-Series IO Cards and digital field devices when used with MYNAH Technologies’ MiMiC Software. (500KB PDF) Read the full text.
- 15 Jul 2013
DeltaV Blog: Maintenance Management and Control System Integration

Jim Cahill

A blog post by Emerson’s Anand Iyer. Since the days of my “initiation” in this field, machinery protection has always been another system, whose domain has been questioned many a times. While the instrumentation and control (I&C) team would probably maintain...
- 12 Jul 2013
Operations Management Blog: Interfaces to Consider for Manufacturing Execution System (MES) Projects

Jim Cahill

Projects to connect your process operations to your business processes and workflows typically require connections with several specialized software platforms. For manufacturers in the pharmaceutical and biotech industries, these electronic connections...
- 9 Jul 2013
Operations Management Blog: Interfaces to Consider for Manufacturing Execution System (MES) Projects

Jim Cahill

Projects to connect your process operations to your business processes and workflows typically require connections with several specialized software platforms. For manufacturers in the pharmaceutical and biotech industries, these electronic connections span the ISA-95 Enterprise-Control System (IEC 62264) hierarchy. I caught up with Emerson’s Gary Mitchell , a member of the Life Sciences industry consulting team. Gary…
- 9 Jul 2013
Operations Management Blog: Interfaces to Consider for Manufacturing Execution System (MES) Projects

Jim Cahill

Projects to connect your process operations to your business processes and workflows typically require connections with several specialized software platforms. For manufacturers in the pharmaceutical and biotech industries, these electronic connections span the ISA-95 Enterprise-Control System (IEC 62264) hierarchy. I caught up with Emerson’s Gary Mitchell , a member of the Life Sciences industry consulting team. Gary…
- 9 Jul 2013
DeltaV Blog: Adaptive Tuning – Models Identified

Terry Blevins

The basis of adaptive tuning is the identification of the process step response based on operator changes in the loop operation. For example, when a control loop is in Automatic mode, changes made in the setpoint can trigger process model identification. If the loop mode has been changed to Manual, then changes by the operator … Continue reading » Read the full text.
- 8 Jul 2013