ЖУРНАЛ СТА 4/2009

TABLE OF CONTENTS CTA 4/2009 66 Intelligent Ethernet I/O modules make PLC more effective By Dominik Reissner and Julien Krauth Modern PLCs are successfully applied in monitoring and measuring systems. However with a rapid acquisition of measurements and signal analysis the PLCs have met their limits in many cases. Using an example of a measuring system integrated in a crankshaft test bench, the following article describes how intelligent Ethernet and a standard protocol such as TCP/IP can be used to carry out complex "rapid" measuring tasks or signal processing simply, reliably and cost effectively via a PLC. 70 Calibration complex for scanners and pressure sensors By Valeriy Baturin, Aleksandr Efentiev, Roman Efimov, Oleg Malkin, Yurii Afanasiev and Victor Solotov The described complex is made for the calibration and verification of pressure sensors and scanners having analogue or digital interface. The complex is developed and manufactured by Tritec Infosystems under the technical project of EPO "Signal" specializing in the production of pressure sensors for the airspace industry. DEVELOPMENT/ Training Systems 76 Laboratory complex for studying the automatic control system for an electricity generating plant By Anton Borodkin, Yurii Gusev and Aleksei Trofimov The budgetary version of the laboratory bench for studying the automatic control system for electricity generating plant on the basis of modern microprocessor software hardware complexes is considered with an example of managing the engine for the specific needs of the power station. The structure of the bench made on the basis of the controller and data acquisition and processing modules from WAGO is presented, and suggested subjects for laboratory studies are given. 80 Use of the modern software tools for the development of real time systems in academic course By Dmitriy Petrov Special features of the modern software tools for the development of real time systems in embedded systems and process control used in academic course at the Saratov state technical university are considered. Teaching is based on a model driven environment for software development Rhapsody and RTOS QNX for the mobile robots control as well as for software hardware complexes on the basis of modern industrial controllers for process control systems development. STANDARDS AND CERTIFICATION 86 Criteria for choosing the SIL 3 level components for the distributed control systems and safety instrumented systems in accordance wit the IEC standards. Part 2 By Glizente Landrini The article describes the selection criteria for the components to be used in the distributed control systems and various safety systems for SIL 2 and SIL 3 applications as recommended in the IEC 61508 and 61511 standards. Also included are examples on how these criteria are used. ENGINEER'S NOTEBOOK 90 Methods of integration the image from IP video cameras into the screen shot of SCADA system By Aleksei Bodyagin The problem of integrating an image from IP video cameras into the screen shot of SCADA system is considered. Features of IP video cameras are described, and methods of creation and use of ActiveX components in SCADA as well as the example of Web interface programmed by the author of the article, are presented. 96 Increase of accuracy by means of multiple measurements. Part 1 By Victor Denisenko The factors limiting an increase of accuracy by means of averaging the results of multiple measurements are analyzed. Formulas and graphs for estimating the limits of increase of accuracy in the presence of typical sources of an error are given. EXHIBITIONS, CONFERENCES, SEMINARS 100 IX International trade fair "Progressive Technologies in Automation. PTA 2009" was held in Moscow SHOWROOM 103 SYSTEM INTEGRATION PROJECTS IN BRIEF 109 NEWS 102 CD ROM IN THIS ISSUE Advantech REVIEW/ Technology 8 Dynamic detection and interruption of the electric discharge — the new concept of intrinsic safety By Victor Zhdankin A new concept of explosion protection called DART (Dynamic Arc Recognition and Termination), offered by Pepperl+Fuchs (Germany) is presented in the article. DART eliminates strict restrictions on energy levels in existing applications with explosion protection class "intrinsically safe electric chain", allowing the transfer of effective power up to 50 W into the hazardous zone. In addition the new technology is an alternative in cases where explosion protection was realized only at great cost and compromise. REVIEW/ Industrial Networks 14 Technology of IP device power supply through a network cable "Power over Ethernet" and its realization in the industrial network equipment By Ivan Lopukhov PoE technology providing power supply of terminal devices in the Ethernet directly through the network cable is described. Advantages and details of PoE use in industrial environment are considered. A review of new hardware realizing the technology is made; examples of practical implementation are given. SYSTEM INTEGRATION/ Metallurgy 20 Design and fulfillment features of converter gas escape channel process control system By Aleksei Krivolapov, Anatoliy Krivonosov, Aleksandr Pirogov, Stanislav Baziuchenko, Sergey Shakhov and Yurii Kaplunov Creation of mathematical model (MM) of technological processes is described. The MM is used for the design and fulfillment of converter gas escape channel (GOT) process control system in the oxygen converter unit of Nizhnetagilsky Metallurgical Industrial Complex. The thermodynamics and dynamics of processes, material and power balances, and phase transformations of a working body (water steam) are considered in the MM. The software of the system works with MM as if it were a real object of control and it allows detailed software fulfillment in all GOT working conditions at UkrGNTTS "Energostal" test bench and the reduction of the process of control system start and adjustment cycle at the plant. SYSTEM INTEGRATION/ Oil & Gas Industry 26 The automated control system for the associated gas preparation unit By Sergey Vitkovskiy and Valdislav Dubinskiy The automated system controlling the basic processes of associated gas preparation unit is described. Issues of field automation equipment choice, use of IBM PC compatible controllers in the hot sparing mode, as well compatibility with modern software are considered. SYSTEM INTEGRATION/ Railway Transport 34 The automatic power consumption accounting and monitoring system at the Kazakhstan railway By Boris Cherepanov and Olga Kiselyova Article is devoted to the automatic power consumption accounting and monitoring system (ASKUE) project introduced at the western Republic Kazakhstan railways. The presented system is based on hardware and software of the well known manufacturers Advantech and ICONICS and performs automated account, acquisition and processing of information on power consumption. SYSTEM INTEGRATION/ Chemical Industry 40 Automation of PVC pitch manufacturing at "Kaprolaktam" plant By Ekaterina Esina and Aleksei Pastukhov Process control system for polyvinylchloride manufacturing is considered. Functionality of system, technical features, and structure and purposes of hardware software complex use are described. The solutions presented are aimed at a decreased influence of the human factor and increased manufacturing safety as well as main principles of the multi level hardware backup providing high reliability of the system in the whole. SYSTEM INTEGRATION/ Construction Materials Industry 48 Experience of heat and humidity concrete processing automation By Aleksandr Derkach, Vladimir Krasnikh, Vitaliy Litvinenko, Anton Rikkel, Sergey Smirnov and Rumada Zeinalova Experience of creating the automated system for the heat and humidity concrete products process control at Spetszhelezobeton plant (Liski, Voronezh region) is described. SYSTEM INTEGRATION/ Automotive Industry 56 VIPA controllers operate production lines at Volkswagen plant By Rene Beyer ThyssenKrupp Krause GmbH used for the newest production lines high efficiency PLC on the basis of SPEED7 technology from VIPA GmbH. Modern assembly lines have been recently set up at a Volkswagen plant in Kassel where the automobile concern manufactures double plate clutch transmissions for all the models of its cars. The control system for the product lines is based on the PLCs from VIPA using an integrated communication Ethernet processor. DEVELOPMENT/ Monitoring and Measuring System 60 Automated system for metrological certification of force converters for the monitoring a protective cover of the nuclear plant reactor By Victor Rozhentsev, Yurii Prokopenko, Anatoliy Novikov, Aleksandr Shamanin and Andrey Fischilenko An etalon monitoring servo hydraulic system based on the industrial PC and assigned for the metrological certification of the force converters controlling an effort of the reinforcing ropes tension, which are used for pressing out a protective cover of the nuclear plant reactor for the preservation of its tightness in operation and under force majeur circumstances, is described. СТА 4/2009 www.cta.ru 112 © СТА-ПРЕСС