How to connect WM-Bus meter to 2N® SmartCOM PRO (ETH)?

tested with 2N® SmartCOM PRO ETH equipped with 868MHz WM-Bus module and WM-Bus meters using WM-Bus T mode.

  • Check in which mode your 2N® SmartCOM PRO ETH works. (1 - T1; 3 - S1; 8 - C1; 11 - T1+C)
at^scwmbus1?                                      - WM-Bus module on position 1 
at^scwmbus1?
^SCWMBUS1: "MODE",1
^SCWMBUS1: "RF_CHANNEL",1
^SCWMBUS1: "MODULE_TYPE","RC1180-MBUS3,2.00,3.15"



  • Sniff your meter (if you don't know SN, VER, DEV), tested 2N® SmartCOM PRO ETH found three WM-Bus meters

at^scwmbfilter="SNIFF"

CONNECT

^SCWMBUS: "BMP",14134845,31,08,-1,-70dBm

^SCWMBUS: "BMT",14166346,0A,07,-1,-78dBm

^SCWMBUS: "BMP",15800058,51,08,-1,-72dBm

DISCONNECT

OK


  • Add your WM-Bus device to 2N® SmartCOM PRO ETH

at^scwmbfilter="dev_add","BMT",14166346,0A,07,                     - if 0 is set, all messages received from the meter are stored (minimum interval in seconds between two readings                                                                                                                   range 0 - 600)

OK


  • Check your meter in table

at^scwmbfilter?

^SCWMBFILTER: "ENABLE",1

^SCWMBFILTER: "CF_DISCARD",0

^SCWMBFILTER: "DEV_CNT",1

^SCWMBFILTER: 1> "BMT",14166346,0A,07,0

OK

  • To accept the data just from predefined meters, the install mode has to be set to value "1" 
at^scwmbfilter="enable",1 (The command activates/deactivates a filter. All WM-Bus packets are received and saved if the function is disabled.)

  • Results

at^scdata="get_oldest",2

^SCDATA: "WMBUS",1467636148,17096,-66,20,"44B409466316140A077A950800000C1305000000"

^SCDATA: "WMBUS",1467636181,17097,-66,20,"44B409466316140A077A960800000C1305000000"