... RS485, DI+DO, Modbus/ Profibus, The PMAC720 Multifunction Power Analyser is suit for up to 220kV system.The ... and displaying electric parameters include voltage, current, active power, reactive power, power factor, frequency, active energy and reactive energy.Additional, ... ∑Q5. Power factor—PFa, PFb, PFc, ∑PF6. Frequency7. Active energy—kWh 8. Reactive energy– kvarhOptional Modules:1. 4 status input ...