M-Bus (Meter-Bus) is a European standard (EN 13757-2 physical and link layer, EN 13757-3 application layer) for the remote reading of gas or electricity meters. M-Bus is also usable for other types of consumption meters. The M-Bus interface is made for communication on two wires, making it very cost effective.

This implementation is currently under heavy development. It is targeted at a very specific solution. Thus only the variable data structure is implemented. However the missing pieces will be implemented in the future.

• Missing: Fixed data structure parsing.
• Missing: Encoding to M-Bus frames.
• Missing: Slave configuration.
• Missing: Interface code (Serial, TCP/IP)
• Missing: Extended VIF codes.

• Parsing of complete telegram.
• Parsing of just Used Data segment.
• Generation of basic JSON structure from telegram/user-data/record.

#!/usr/bin/env python

import meterbus

data = "\x68\x6A\x6A\x68\x08\x01\x72\x43\x53\x93\x07\x65" \
       "\x32\x10\x04\xCA\x00\x00\x00\x0C\x05\x14\x00\x00" \
       "\x00\x0C\x13\x13\x20\x00\x00\x0B\x22\x01\x24\x03" \
       "\x04\x6D\x12\x0B\xD3\x12\x32\x6C\x00\x00\x0C\x78" \
       "\x43\x53\x93\x07\x06\xFD\x0C\xF2\x03\x01\x00\xF6" \
       "\x01\x0D\xFD\x0B\x05\x31\x32\x4D\x46\x57\x01\xFD" \
       "\x0E\x00\x4C\x05\x14\x00\x00\x00\x4C\x13\x13\x20" \
       "\x00\x00\x42\x6C\xBF\x1C\x0F\x37\xFD\x17\x00\x00" \
       "\x00\x00\x00\x00\x00\x00\x02\x7A\x25\x00\x02\x78" \
       "\x25\x00\x3A\x16"

telegram = meterbus.load(data)
print telegram.records[3].parsed_value

~$ 19.2.2014 11:18

Please see the LICENSE file