| 摘要 |
<P>PROBLEM TO BE SOLVED: To collect electric energy of the same specified time from all electric power measuring units of which the electric energy is to be collected even if communication failures have occurred. <P>SOLUTION: An electric energy monitoring system comprises: the electric power measuring units 2 provided with an electric energy measuring part 11 for measuring the electric energy of industrial facilities for every set period and a unit-side memory part 12 for storing the electric energy for every set period; and a PC terminal 3 connected to the electric power measuring units for communication to acquire electric energy as results of measurement. The PC terminal comprises both a memory part 25 for storing electric energy for every electric power measuring unit at the acquisition of electric energy for every electric power measuring unit and a CPU 26 for displaying the electric energy of the electric power measuring unit on a display part 23 on the basis of stored electric energy. The CPU connects to each electric power measuring unit of which the electric energy is to be collected for communication at the detection of a request command, sequentially acquires electric energy of the same specified time stored in the unit-side memory part, and stores the acquired electric energy of the specified time in the memory part 25 for every electric power measuring unit. <P>COPYRIGHT: (C)2007,JPO&INPIT |
