ASHIDA Station Controller ADR200A is a ‘Station-level’ controller which can communicate with multiple slave devices like Protection relays, Meters, etc., process this information & transmit it onwards to a remote master. Slave protocols include IEC60870-5-103 & MODBUS. Master protocols include IEC60870-5-101 and SPORT. ADR2300A is ideally suited to schemes where multiple sub-stations are to be controlled from a single location. This intelligent device communicates with a number of slave devices (DI, DO Cards, Numerical Relays, etc.) & compiles this information which serves as a single database of the entire sub-station / post. This compiled information can then be communicated with RCC using standard protocol.