E-12System ArchitectureS-NET 3Centralized controller SIM /PIMDMS2Internet Web ClientWatt-hour meterUp to8 unitsSIM /PIMUp to8 unitsUp to8 unitsWatt-hour meterThe DMS2 calculates and distributes the power consumed by each indoor unit byreceiving the total power usage from the watt-hour meter interface modules (SIM/PIM)and taking into account the operation status of the indoor units.The DMS2 saves at most 1 year of data. After a year, the oldest data is deleted andthe latest data is saved. This data can be checked through the built-in Web page ofthe DMS2 or by S-NET 3.Save Integrated Power Distribution DataMain Function (Continued)