Digital module for calculating the harmonics of current and voltage up to the 40th harmonic. The calculation is carried out every 200ms in accordance with IEC 61000-4-30 (Test and measurement techniques - Power quality measurement method). Micrologic X calculates the average value of the harmonics at an interval of 3s. Note Micrologic X requires firmware version V002.000.xxx or higher. Earlier firmware is not compatible with this application. The analysis of the harmonics can be displayed directly on a smartphone and forwarded to an expert system. The data can be analyzed using EcoStruxure Power Services.