DLMS communications over LoRaWAN
The example setup illustrates the exchange of DLMS/UDP/IPv6 frames between HES and DLMS meter on a LoRaWAN link thanks to Acklio SCHC implementation. By compressing IPv6, UDP and DLMS wrapper headers, SCHC allows an economy of 56 bytes per message. And SCHC fragmentation is applied in an "ack-on-error mode" when the compressed messages exceed Maximum Transmission Unit (MTU).
The demo comes with a device application (the DLMS server) simulating the DLMS meter and a DLMS client simulating the Head-End System (HES).
We provide reference designs for:
Semtech LR1110DVK1TBKS development kit
STM32L476RG-Nucleo board with sx1261 extension shield