• Ashida Electronics Private Limited

Station Controller

Ashida Electronics Pvt Ltd offers a Station Controller, ADR200A. This intelligent device communicates with a number of slave devices (DI, DO cards, numerical relays, etc), and compiles this information which serves as a single database of the entire sub-station. This compiled information can then be communicated simultaneously with local/remote substation as well as load dispatch centre using standard open protocol. Station controller gathers the information from all digital input, digital output and analog input cards. It has a combination of five communication ports. Two RS232 ports can be used for SCADA PC communication on IEC60870-5-101 or sport protocol. One Ethernet port can be used for communication with SCADA on IEC60870-5-104 protocol. Two RS485 ports are used for communication with DI/DO/AI cards and numerical relays using IEC60870-5-103 protocol. One more RS485 port is used for communication with energy meters using Modbus protocol.

This station controller performs the following tasks:

• Continuous scanning of all DI/DO/AI cards and numeric relays for updated parameter values and events
• Sending control operation command to numeric relays or digital output cards
• Display all acquired information locally on LCD
• Provide all information to control room via communication link on demand
• Sending updated parameters values to RCC as response to commands