[W-MBUS] “After different test, it seems that ‘s’ command works only in ‘RX only’ mode (test 3). Is it normal? “ Yes, you must force RX mode before using the ‘s’ command. Last Update: November 9, 2017 November 9, 2017 1275 Wireless M-Bus Q&A Related Knowledge Base Posts -[W-MBUS] Do MBUS3 and MBUS4 support multi-hop repeaters?[W-MBUS] Is the firmware included in module? Are there are any additional cost regarding firmware?[W-MBUS] “The WM-Bus module on my PoC unit sometimes stops sending serial messages (eg overnight). The Radiocrafts Demo PCB continues to receive OK, so it’s not the radio signal stopping, it’s the module serial output stopping. It starts again after turning Vdd off and on. This could be radio interference on the PCB wires perhaps, eg insufficient filtering on the serial data wires or Vdd wire, so I will improve that on the PCBA. “