NOTE: There has been a change in the Kamstrup firmware which removes the 09 preceeding the first timestamp. See the strikthrough in the table below

Sample for Kamstrup

This sample shows a full data package, including start and stop bits. Please check the data breakdown for a more detailed description of each OBIS code value.

A good portion of raw sample data is also available in HAN 20171019 xibriz4.txt

SAMPLE Data:

[2017-10-20 04.43.32.368 - Received 229 (0xE5) bytes] 7E A0 E3 2B 21 13 98 86 E6 E7 00 0F 00 00 00 00 09 0C 07 E1 0A 14 05 03 2B 1E FF 80 00 00 02 19 0A 0E 4B 61 6D 73 74 72 75 70 5F 56 30 30 30 31 09 06 01 01 00 00 05 FF 0A 10 35 37 30 36 35 36 37 32 37 34 33 38 39 37 30 32 09 06 01 01 60 01 01 FF 0A 12 36 38 34 31 31 32 31 42 4E 32 34 33 31 30 31 30 34 30 09 06 01 01 01 07 00 FF 06 00 00 05 BC 09 06 01 01 02 07 00 FF 06 00 00 00 00 09 06 01 01 03 07 00 FF 06 00 00 00 00 09 06 01 01 04 07 00 FF 06 00 00 01 CE 09 06 01 01 1F 07 00 FF 06 00 00 02 34 09 06 01 01 33 07 00 FF 06 00 00 00 CA 09 06 01 01 47 07 00 FF 06 00 00 01 FF 09 06 01 01 20 07 00 FF 12 00 E8 09 06 01 01 34 07 00 FF 12 00 E4 09 06 01 01 48 07 00 FF 12 00 E9 A1 A5 7E

Breakdown:

Data | Explaination ——–|————- 7E | Frame Start flag A | 4 bits, A = Frame Format Type 3 (0b1010) 0 E3 | 12 bits, Frame size: 0xE3 (227 bytes, excluding start/end flags) 2B | Destination Address (Address can be 1-4 bytes. Terminated by LSB=1) 21 | Source Address (Address can be 1-4 bytes. Terminated by LSB=1) 13 | Control Field 98 86 | Header check sequence (HCS) (Check sum calculated from the address bytes, according to RFC 1662) Begin Data| LLC PDU Format (GB, 8.3 Fig 19)|| E6 | Destination LSAP E7 | Source LSAP 00 | LLC Quality 0F | Information, n*8 bits? 00 00 00 00 | INVOKE_ID_AND_PRIORITY 09 | String following (really, it’s a date!) 0C | 12 bytes (length of the string) 07 E1 | 2017 (year) 0A | 10 (oct) 14 | 20 (date) 05 | friday 03 | 03 (hour) 2B | 43 (min) 1E | 30 (sec) FF | (fff not specified) 80 | (deviation not specified?) (…) | (…) End Data| A1 A5 | Frame check sequence (FCS) (Check sum calculated from full frame, excluding flags and FCS, according to RFC 1662) 7E | Frame End flag