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检索条件"主题词=Programmable Logic Controllers"
1815 条 记 录,以下是1581-1590 订阅
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Neutron single event upsets in SRAM-based FPGAs
Neutron single event upsets in SRAM-based FPGAs
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Proceedings of the 1998 IEEE Radiation Effects Data Workshop, NSREC
作者: Ohlsson, M. Dyreklev, P. Johansson, K. Alfke, P. Ericsson Saab Avionics AB Linkoping Sweden
SRAM-based FPGAs have been studied for their sensitivity to atmospheric high energy neutrons. FPGAs with the supply voltage 5V and 3.3V were irradiated by 0-11, 14 and 100 MeV neutrons and showed a very low SEU suscep... 详细信息
来源: 评论
Real-time detection and tracking of a moving object using a complex programmable logic device
Real-time detection and tracking of a moving object using a ...
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Proceedings of the 1998 IEE Colloquium on Target Tracking and Data Fusion
作者: Benkhalil, A.K. Ipson, S.S. Booth, W. Univ of Bradford United Kingdom
This paper presents the design of an active surveillance system consisting of an intelligent-controller and two video cameras (one with a fixed wide field of view and the other with a narrow moveable field of view). T... 详细信息
来源: 评论
Industrial control at a commercial price
Industrial control at a commercial price
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Proceedings of the 1998 44th International Instrumentation Symposium
作者: Tilleman, Jeff Stewart, Jim Industra Inc Portland United States
Integrated Device Technology (IDT) was faced with the problem of installing a new, modern Class 1 cleanroom for the production of 8 inch, 0.35 micron high speed Sram chips using sophisticated controls under tight budg... 详细信息
来源: 评论
Intrinsic safety PLC with a graphic programming environment
Intrinsic safety PLC with a graphic programming environment
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Proceedings of the 1998 24th Annual Conference of the IEEE Industrial Electronics Society, IECON. Part 4 (of 4)
作者: Blanco, Cecilio Perez, Miguel A. Alvarez, Juan C. Campo, Juan Carlos Ferrero, Francisco J. Universidad de Oviedo Gijon Spain
An intrinsic safety PLC has been developed. This PLC has been built to be used in dangerous environments, such inside a mine, where there are risk of explosion. A μP MC68000 has been used as processor and the PLC inc... 详细信息
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P02-10 - diesel generation control system modernization
P02-10 - diesel generation control system modernization
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Proceedings of the 1998 11th Canadian Conference on Electrical and Computer Engineering, CCECE. Part 1 (of 2)
作者: Eng, Andrew Davis P. J. Kaehne & Associates Ltd Burnaby Canada
The programmable logic Controller (PLC) SCADA upgrade for the Inuvik Power Station replaced an outdated SCADA system and incorporates automatic features of modern diesel generating stations. The modern PLC based contr... 详细信息
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Implementation aspects of the PLC standard IEC 1131-3
Implementation aspects of the PLC standard IEC 1131-3
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作者: Öhman, Martin Johansson, Stefan Årzén, Karl-Erik Department of Automatic Control Lund Institute of Technology Box 118 S-221 00 Lund Sweden
IEC 1131-3 is a standard for PLCs, defining four programming languages and a type of Grafcet, Sequential Function Charts (SFC). An object-oriented prototype of SFC and the language Function Block Diagram have been imp... 详细信息
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Installation of a new control cubicle at an existing 230 KU
Installation of a new control cubicle at an existing 230 KU
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Proceedings of the 1997 International Conference on Power Generation, POWER-GEN
作者: Bassett, David L. PPL&L Inc
A quick overview is presented of the application of programmable logic Controller (PLC) based controls to a major PP&L substation and the method used to move the 9-230 kV lines from the old control system to the n... 详细信息
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Safety considerations in using IEC 1131-3 programming languages
Safety considerations in using IEC 1131-3 programming langua...
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Proceedings of the 1998 IEE Colloquium on Open Control in the Process and Manufacturing Industries
作者: Clarke, S.J. ERA Technology Ltd Surrey United Kingdom
To ensure that the ultimate goal of a correct translation from source code to executable code, a formal semantics of the safe subset is required. IEC 113-3 provides formal syntax for ST and IL but only defines semanti... 详细信息
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Optimizations for a highly cost-efficient programmable logic architecture  98
Optimizations for a highly cost-efficient programmable logic...
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Proceedings of the 1998 ACM/SIGDA 6th International Symposium on Field programmable Gate Arrays, FPGA
作者: Veenstra, Kerry Pedersen, Bruce Schleicher, Jay Sung, Chiakang Altera Corp San Jose CA United States
Architects of programmable logic devices (PLDs) face several challenges when optimizing a new device family for low manufacturing cost. When given an aggressive die-size goal, functional blocks that seem otherwise ins... 详细信息
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Integrating scales, weight information and PLC's
Integrating scales, weight information and PLC's
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作者: Jeffery, R.
A report on various methods for integrating scale and weight information with programmable logic controllers (PLC) was presented. The need to install improved solutions by manufacturers for statistical process control... 详细信息
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