DCS, SCADA, Controllers

DCS, SCADA, Controllers February 1, 1999

Adaptive controller tracks process changes

In some sense, all process controllers are "adaptive" because they force a process to adapt its outputs to the values operators desire. However, most process controllers do so according to algorithms designed (or at least fine tuned) by the operators before the controller ever starts its work. The operators may periodically re-tune parameters of a traditional controller, but this is gener...

By Vance J. VanDoren, Ph.D., P.E.
DCS, SCADA, Controllers January 1, 1999

Intellution launches new FIX Dynamics, DCS solutions

Intellution Inc. recently released its FIX Dynamics human-machine interface/supervisory control and data acquisition (HMI/SCADA) component version 2.0, which uses underlying component object technology to give users measurable performance results. The company says the new version allows users to solve problems that were previously too time consuming or expensive by ...

By Staff
DCS, SCADA, Controllers November 1, 1998

Flowmeter has smart multivariable transmitter

Plattsburgh, N.Y.— Preso Meters Corp. has just introduced its Venturi/SMV line of differential pressure flowmeter technology, with "smart" multivariable transmitter for direct-compensated mass flow measurement. The device uses a Preso venturi in the classical nozzle or low-less design, and a "smart" compensating transmitter which provides direct 4-20 mA signal output to the DCS system.

By Staff
DCS, SCADA, Controllers November 1, 1998

Consistency and Flexibility Top Batch Control Needs

Control Engineering partnered with two prominent companies in the process control industry to conduct the latest research in the batch control market. Of the 1,500 people polled, 30% gave us the scoop on what goes on in the various batch control arenas today. According to the results of the "Control Engineering Batch Control Survey," engineers aren't wandering very far away from the m...

By Michael Drakulich, Control Engineering
DCS, SCADA, Controllers November 1, 1998

Corrections – 1998-11-01 – 1998-11-01

In “Improving Safety in Process Control” in Control Engineering September 1998, an incorrect web site address for the American Institute of Chemical Engineers was listed on pgs. 56 and 84. The institute’s correct web address is www.aiche.org . A report on the BIAS trade fair in Control Engineering International January 1997 included ORSI’s introduction of CUBE-DCS, a soft PLC/soft DCS package with IEC-1131-3 environment, embedded Windows NT real-time kernel, hot backup, and open I/O devices on standard fieldbus.

By Staff
DCS, SCADA, Controllers October 1, 1998

Compatible ‘Made in China’ DCSs enhance quality, productivity

Because they can help improve process control, consistency, and productivity, distributed control systems (DCSs) are gaining increasing attention among China's plant directors. In fact, some large Chinese process industry plants began using DCSs about 10 years ago to help make products meeting the same standards as those from other countries.

By Zhang Sie Lin
DCS, SCADA, Controllers October 1, 1998

Hard-wired system for high safety demands

Bruehl, Germany—Planar4 is a programmable hard-wired control system for applications requiring high level of safety. To meet those requirements, Planar4 is certified to DIN 19250 and IEC 61508, and thus usable for applications to Requirement Class seven (AK7) and Safety Integrity Level four (SIL4).

By Staff
DCS, SCADA, Controllers October 1, 1998

Remote monitoring

Calgary, Alberta, Canada — SCADALink 900-MB combines control and license-free communications (frequency hopping spread spectrum radiomodem) intended for remote monitoring and control applications. With integral Modbus compatible I/O (4 in-puts and 4 outputs), no further equipment is said to be needed for many control applications.

By Staff
DCS, SCADA, Controllers June 1, 1998

I/A Series DCS integrator

Foxboro, Mass. —DCS Integrator for Fisher Systems was intended to ease users' migration from Fisher distributed control systems to the latest I/A Series open industrial system technology. This straightforward approach integrates the I/A Series system at the basic process I/O level, avoiding any possible use of proprietary elements.

By Staff
DCS, SCADA, Controllers March 1, 1998

Simplify Industrial Automation

Austin, Tex. —BridgeView 2.0 is the latest version of a SCADA software package that combines popular software technologies and the G language of LabView, together with an event-driven data engine. The package is said to give engineers and systems integrators the power to develop automation solutions quickly and easily.

By Staff