The Huawei SmartLogger 3000A01EU allows to manage a maximum of 80 devices. The installation and operation of the data logger for solar systems work very straightforward. Various options are possible for the integration of the Huawei SmartLogger 3000A01EU. The device supports communication via RS485 as well as via Ethernet and 4G. Interesting for all operators is the integrated web server, which makes the logger an essential part of a smart PV system.