Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Plant automation and telecontrol in the same system

20.03.2008
The latest process control system Simatic PCS 7 has now been expanded by the Siemens Industry Automation Division with telecontrol functions. Simatic PCS 7 TeleControl connects distant substations to the central control system by means of telecontrol.

In terms of the operating philosophy and alarm signaling, there is no difference between the local or distant station as far as the plant operator is concerned. Several different media are available for communication, such as dedicated lines, dial-up connections or radio systems.


The application range of the integrated, universally implementable telecontrol system extends from the oil and gas industry through to the water supply and treatment sector.

Simatic PCS 7 TeleControl integrates distributed, distant substations and a central control system to form a homogeneous overall solution. This allows applications to be created that are integrated with regard to operation and alarm signaling and the risk of operating errors as well as engineering and servicing costs are reduced. In large-scale plants, a redundant configuration increases plant availability and redundant servers compare their process values, curves and alarm statuses with each other.

Communication with the external substations is performed over dedicated lines, dial-up lines or radio systems and, in new plants, increasingly with TCP/IP-based techniques, with either DSL or GPRS. Simatic PCS 7 Telecontrol supports the Sinaut ST7 and Modbus protocols over serial as well as over TCP/IP-supported communication links. Further processing and archiving of the raw data complete with time stamps received from the distant substations are performed in the central PCS 7 TeleControl server. Simatic PCS 7 TeleControl function blocks are provided for this purpose for the Simatic PCS 7 standard control system. The user interface and error message hierarchy as well as the symbols and faceplates correspond to those of Simatic PCS 7 and present the user with the familiar system environment.

The Sinaut ST7 telecontrol protocol is designed to be robust and can also be implemented for slow or sensitive transmission paths. For example, data are buffered in the distant substations to bridge faults or sporadic connection interruptions in radio networks without losing important data.

The wide ranging applications of Simatic PCS 7 TeleControl extend from the oil and gas industry – for example, for compressors, pressure reduction, transfer and metering stations in gas supply networks as well as for pumps and valve stations in oil pipelines – through to the water supply and treatment sector. In the latter, the system provides telecontrol solutions for sprinkler, pump and valve stations in water supply networks as well as for rainwater overflow basins and hoisting plants in waste water systems.

Gerhard Stauss | Siemens A&D
Further information:
http://www.siemens.com/pcs7

More articles from Machine Engineering:

nachricht PRESTO – Highly Dynamic Powerhouses
15.05.2017 | JULABO GmbH

nachricht Making lightweight construction suitable for series production
24.04.2017 | Laser Zentrum Hannover e.V.

All articles from Machine Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Physicists Design Ultrafocused Pulses

Physicists working with researcher Oriol Romero-Isart devised a new simple scheme to theoretically generate arbitrarily short and focused electromagnetic fields. This new tool could be used for precise sensing and in microscopy.

Microwaves, heat radiation, light and X-radiation are examples for electromagnetic waves. Many applications require to focus the electromagnetic fields to...

Im Focus: Carbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers

Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...

Im Focus: Flexible proximity sensor creates smart surfaces

Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.

At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

 
Latest News

Programming cells with computer-like logic

27.07.2017 | Life Sciences

Identified the component that allows a lethal bacteria to spread resistance to antibiotics

27.07.2017 | Life Sciences

Malaria Already Endemic in the Mediterranean by the Roman Period

27.07.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>