Abstract
A rooftop is a top covering of a structure, including all materials and developments important to help it on the dividers of the structure and also provides protection against rain, wind, snow, sunlight and excess of temperature. The asbestos sheet is used in the 20th century widely because of inexpensive and non-flammable properties. South America and Asia are using asbestos in the vital range for producing asbestos cement sheets where the other continents stopped using because of health and legal issues during mining and handling of asbestos. Many industries are involved in the production of asbestos sheets. In such industries, counting of sheets is done by using a proximity sensor during the piling of sheets per day consecutively. The count per hour and count per shift are the manual jobs done by workers. The worker needs to count the sheets manually every hour and should record the count in the register books. Manual works may lead to errors and also it took much time for counting and recounting sheets if there is some error in counting. Hence an automatic counting per hour and per shift method is proposed in this paper. Normally, proximity sensor is used to count sheets. In addition to that GIC PL100 (PLC) is used for counting the sheets per hour and shift and SCADA is for displaying the sheet count in Personal Computer. This proposed method completely avoids the manual intervention and gives an accurate count by proximity senor.
Highlights
Roofing asbestos cement sheets play a major role in the industrial and farmyard buildings
The word asbestos is first used in the 1600s which derives from the Ancient Greek meaning "unquenchable" or "inextinguishable" [1]
Asbestos was first used in the yarn manufacturing, and Louis Wertheim, a German industrialist adopted this process in his factories in Germany [2]
Summary
Roofing asbestos cement sheets play a major role in the industrial and farmyard buildings. V. Asmitha*, Department of Electronics and Instrumentation Engineering, Kongu Engineering College, Perundurai, Tamil Nadu, India. R. Bharathidhasan, Department of Electronics and Instrumentation Engineering, Kongu Engineering College, Perundurai, Tamil Nadu, India. G. Keerthana, Department of Electronics and Instrumentation Engineering, Kongu Engineering College, Perundurai, Tamil Nadu, India. PLC was created with a few favourable circumstances over prior plans It would endure the modern condition, be effectively extensible with extra I/O (take into consideration simpler reconfiguration and cycle over assembling process configuration), be moderately easy to utilize, and would allow its activity to be checked [8]. PLC would permit its operation to be monitored [8] This counts the sheet production and stored in the particular counter Modbus address i.e., from 300739 to 300766. The counting of asbestos sheets per hour and per shift are displayed by using SCADA in PC. Modern carrier-class systems provide the service quality required for SCADA [9]
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