Air conditioners have become an important need in industrial and domestic places. On the other hand industrial automation tools provide a wide range of applications in control and monitoring of mechanical, power, automobile, telecommunication systems etc. Programmable Logic Controller (PLC) and Supervisory Control and Data Acquisition (SCADA) can be easily used as automation tool in HVAC industries. In this work we present the monitoring and controlling of AC system employed for more prominent work space using PLC and SCADA. PLC is used at the remote end as hardware to supervise and control the required air conditioning space. The ladder logic developed for programming PLC is provided which can also be implemented in monitoring and controlling of multiple AC systems in remote and local mode to operate either automatically or manually. SCADA is used to operate remotely by developing Graphical User Interface (GUI) using CIMPLICITY software. With all the features, this designed system is capable of efficient handling of the resources such as the compressor, blower, condenser etc. With all the levels of safety and durability, it maintains the temperature and control humidity levels within the official work place and also looks after the health of the compressor.
AC system, SCADA, PLC, remote mode, local mode, manual mode, auto mode
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