期刊名称：International Journal of Advanced Computer Science and Applications(IJACSA)
印刷版ISSN：2158-107X
电子版ISSN：2156-5570
出版年度：2011
卷号：2
期号：1
DOI：10.14569/IJACSA.2011.020112
出版社：Science and Information Society (SAI)
摘要：Need of industrial automation and control is not closed yet. PLC, the programmable logic controller as available in 2009 with all standardized possible features, discussed here concisely. This work on PLC gives a simplest form built in any computer hardware and software for immediate flexible need of the product in a small environment any number inputs and output logic permitted by a computer. At first, the product logic is implemented using simple available computer using a PCIMCIA card having 8255 parallel I/O device, RS232 etc. software like Java, C, C++, and Visual Basic. Further work continuing with all coming generations and variation in the mentioned technology. Expert engineer having these skills may fabricate a small operating PLC within one month. This is a view of preliminary work. Further up gradation of this work comes in term of Visual programming tool (computer aided design) and also universal make in terms of all operating system and computer available in the world. Sensors and module for data to logic conversion is not emphasized in this work. Connectivity has to be as per standard. Immediate use of this work as an education technology kit. The work in this huge technology area should not be accused because this is need in some way.
