A RTU, Remote Terminal Unit is an industrial computer which interfaces objects in the physical world to a DCS or SCADA system by transmitting telemetry data to the system and/or altering the state of connected objects based on control messages received from the system. The RTU provides intelligence in the field, and allows the central SCADA master to communicate with the field instruments. It is a standalone data acquisition and control unit. Its function is to control process equipment at the remote site, acquire data from the equipment, and return the data to the central SCADA system. As an EPC contractor, KTC provides various solutions for SCADA projects using different RTUs; its own internally developed products or every other brand’s proper RTU.