With development of micro-electronics, computer and communication technology, power-automation technology and Field-Bus technology have also been developed rapidly, it is a inevitable trend that power-automation will be combined with Field-Bus. In this tendency, field-bus technology, particularly LonWorks field-bus technology, applied in power automation is bound to a main stream of development. In the background of power-parameter remote measurement, this paper adopts advanced energy chip technology and actualized power-parameter remote monitoring and control system based on LON network. This system adopts LonWorks field-bus technology and advanced power energy chip (SA9904B) technology, completing real-time monitoring about voltage, current, power, energy, power factor and frequency of three phase bi-directional circuit. Testing result is conserved in high capacity external hard disk so as to compare and analyze at any time. And the remote communication of measure data is realized by LonWorks field-bus technology. Actual monitoring result indicates that the system meets measurement precision and function of design.
