The open smart grid platform supports DLMS/COSEM (IEC 62056]. DLMS/COSEM is a popular protocol to read smart meters. DLMS/COSEM is the de facto standard in Europe.
The open smart grid platform DLMS/COSEM implementation was initial based on SMR5 and DSMR v4. Other types of meters/profiles can be added to the platform. The open smart grid platform implementation supports HLS3/4/5.