[Features] · An industry first. Unique construction that enables power and electrical leakage monitoring with just one unit.* Use just one unit to implement multi-circuit measurements. · CT/ZCT units can be flexibly added to measure multiple circuits as required. · Equipped with open phase, reversed phase, overvoltage and undervoltage and voltage protective functions and RS-485 communication (Modbus, CompoWay/F) as standard. · Logs voltage fluctuation data in the main memory and outputs an alarm in 25ms (voltage drop monitoring unit only). · Allows for DeviceNet communication unit expansion. · Instantaneous power for 30CH can be fetched by the PLC with a 100ms takt time. · host monitoring software (general-use Ethrnet communication) is provided free of charge from September, 2012 (download from the Web).