| 摘要 |
An RTU(Remote Terminal Unit) structure for controlling a digital electric transformation system by including a PLC(Programmable Logic Circuit) function is provided to control entire control system actively by linking a PLC for a logic function and an IEC(International Electrotechnical Commission)-61850. An RTU structure includes PLC software for an internal logic process, a communication interface(12) comprising MODBUS TCP(Transfer Control Protocol)/MODBUS RS(Recommended Standard)-485 and CAN(Controller Area Network) 2.0, and an input unit(13) comprising digital input 32 points, digital output 32 points, and analog input 32 points, analog output 32 points, and pulse input 32 points. A control device is dualized by mounting a main module equipped with a PLC(14) and the communication interface, and a sub module(11). |
