Because in today's era, filled with technologies that come with increased comfort. Make the requirements in terms of energy consumption in various formats, add up to. The development came at the same time, with the economic growth and industry. The expansion of the industry requires more labor, which may adversely impact on the cost of production. Measurement systems and automated process controls, it is necessary that current industry needs and the importance of the automated control system, we have made a study of command control systems via computer. That makes the work easier and more comfortable. Ordering through computers using virtual tools (Virtual Instrument) This makes it possible to get an overview of the system and correct the mistakes of the design with ease. Communication between devices with a variety of Computer data will be sent depending on the limitations of sending and receiving information of the device. When I consider the Process to be controlled is the Pressure Control loop Controller Set point value will be part (SP), Measured process variable (PV) signal to the processing Controller output from the above section, we will use the Computer as the Controller value SV is entered on the screen HMI control system and the PV will be derived from a single Transmitter ญ.าณ Analog or Digital Computer access by using OMRON brand PLC Analog signals into Digital values conversion C200H for Computer processing or that PV value will come from Pressure Transmitter in Wireless systems, HART signal measurement and wireless access Gateway Server to a Hub so that Computer to communicate with the Gateway. In this case it is a Wireless Hub so that the Computer can keep in touch wirelessly with the Gateway.
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