Design of the Data Logger with IEC Standard for PV System

This research was to study the design of a data logger with IEC standard for PV system using Arduino microcontroller. The Arduino microcontroller received a signal from analog sensor. The main processor board of the Arduino microcontroller was evaluated and display to 20 4 characters (4 rows and 20 characters per row) on LCD monitor. Then, the data were recorded in a memory card. Furthermore, the data logger was tested with the pyranometer, fixed PV module and tracking PV module. Those of the values were compared with the data from a standard data logger (Wisco DL 2100) and calculated the values of percentage of an error. It was observed that the maximum values of the percentage of the error from the recorded data was 25.60. The minimum values of the percentage of the error from the recorded data was 0.