Communication with M-Bus
2CMC48001M0201 239 A43/A44
Revision: C User Manual
10.4.2.1 Examples of Readouts of Demand Data
Introduction In the following is a number of commented practical examples of demand data.
All data is in hexadecimal format. Comments are preceded by a semicolon.
Minimum values have the function field in the DIF set to 10 hex and maximum
values 01 hex.
Readout of demand data
System sends read request command for demand with date 14-08-17:
68 0A 0A 68 73 FE 51 02 EC FF F9 18 D1 18 A9 16
Meter sends out acknowledge:
E5
System sends out request UD2:
10 7B FE 79 16
Meter sends out data telegram 1:
68 CE CE 68 08 00 72 34 12 00 00 42 04 20 02 B2 00 00 00 ;Data header
01 FD A5 00 0F ;Interval length 15 minutes
01 FF AB 00 01 ;Subinterval length 1 minute
14 A9 FF F9 D1 00 66 33 00 00 ;Current demand (storage number 0) for 1:st
max-imum total active power import, VIF A9 -> data in W with 2 decimals.
Data = 00003366 hex = 131.58 W
0E ED EB 00 00 15 00 16 08 14 ;Date/time stamp for maximum given above:
16:th of august 2014, 00:15:00 (hour:minute:second)
14 A9 FF F9 D2 00 6A 02 00 00 ;Current demand (storage number 0) for 2:nd
maximum total active power import, VIF A9 -> data in W with 2 decimals.
Data = 0000026A hex = 6.18 W
0E ED EB 00 00 30 00 16 08 14 ;Date/time stamp for maximum given above:
16:th of august 2014, 00:30:00 (hour:minute:second)
14 A9 FF F9 D3 15 00 00 00 00 ;Current demand (storage number 0) for 3:rd
maximum total active power import, status 15 hex -> no data available (data
set to 0 when not available)
0E ED EB 00 00 00 00 01 01 00 ;Date/time stamp for maximum given above: Set
to 1:st of january 2000, 00:00:00 when data not available
24 A9 FF F9 D9 00 8C 01 00 00 ;Current demand (storage number 0) for 1:st
minimum total active power import, VIF A9 -> data in W with 2 decimals.
Data = 0000018C hex = 3.96 W
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