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M-Bus to wM-Bus Parser

This parser is utilized to parse messages from our M-Bus to wM-Bus solution. The solution is as follows: L-M-D (M-Bus to LoRaWAN) gathers the individual meter data a forwards them via NI-W-D2 (wireless M-Bus to NB-IoT) directly to the user.

This is especially usefull, if you want to gather wM-Bus devices along with M-Bus devices. M-Bus devices are encapsulated by a LoRaWAN M-Bus converter and collected by wM-Bus converter – which also collects all the data from native wM-Bus devices in the area.

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Note that the M-Bus frames are encapsulated and encrypted in wM-Bus frame, but other than that, they are not modified or converted in any way.

For further details, please refer to this article on the M-Bus to wM-Bus encapsulation.

How to Use the Parser​

The message arrives in a wM-Bus frame, which is a prepended and encrypted M-Bus frame.

  1. Enter the payload of the meter.
  2. Enter the key of the M-Bus converter, so the message can be decrypted.
  3. Confirm, you may now also parse the decrypted raw M-Bus frame in any other M-Bus parser.
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Parser uses the tmbus library to parse M-Bus messages.

Usage​

To use the M-Bus to wM-Bus Parser, enter a message and key in the following formats:

FF FF FF FF FF FF FF FF
FF, FF, FF, FF, FF, FF, FF, FF
0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF