[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 2163 Wireless M-Bus Q&A Related Knowledge Base Posts -[W-MBUS] What is the range of Wireless M-Bus?[W-MBUS] Which module should I use for India?[W-MBUS] I have one development board Wireless M-Bus (RC1140) that we got in 2010. HW version 1.2. I’m pretty sure this is out of date in software revision. Could you please advise latest FW revision and procedure to upgrade?