Wired M-Bus • Water Meters flowIQ® 2101/3100 TECHNICAL DESCRIPTION
Kamstrup A/S · Technical Description · 55121944_A1_GB_08.2016
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8.4
DIF (Data Information Field)
The DIF codes holds additional information regarding the formatting of the data-value in the records, whether data
is binary, real or BCD.
Some examples of DIF codes are listed in the table below.
Subject
Value
Hex
Description
PRIMARY ADDRESS
00000001
01h
8 bit binary, Current Value, Type C
INFO CODE
00000010
02h
16 bit binary, Current Value, Type B
METER TYPE
00000010
02h
16 bit binary, Current Value, Type B
SOFTWARE REVISION
00000010
02h
16 bit binary, Current Value, Type B
VOLUME (Meter reading and reverse)
00000100
04h
32 bit binary, Current Value, Type B
TEMPERATURES Actual
00000001
01h
8 bit binary, Current Value, Type B
TEMPERATURES minimum daily
00100001
21h
8 bit binary, Minimum Value, Type B
TEMPERATURES average daily
00000001
01h
8 bit binary, Current Value, Type B
TEMPERATURES maximum daily
00010001
11h
8 bit binary, Maximum Value, Type B
TEMPERATURES minimum monthly
01100001
61h
8 bit binary, Minimum Monthly Value, Type B
TEMPERATURES average monthly
01000001
41h
8 bit binary, Current Monthly Value, Type B
TEMPERATURES maximum monthly
01010001
51h
8 bit binary, Maximum Monthly Value, Type B
TARGET DATE
01000010
42h
16 bit binary, Compound Data, Type G
FLOW actual
00000010
02h
16 bit binary, Current Value, Type B
FLOW minimum daily
00100010
22h
16 bit binary, Minimum Value, Type B
FLOW maximum daily
00010010
12h
16 bit binary, Maximum Value, Type B
FLOW maximum monthly
01010010
52h
16 bit binary, Maximum Monthly Value, Type B
FLOW minimum monthly
01100010
62h
16 bit binary, Minimum Monthly Value, Type B
HOUR COUNTER
00000100
04h
32 bit binary, Current Value, Type B
DATE AND TIME
00000100
04h
32 bit binary, Compound Data, Type F
TARGET DATE
01000010
42h
16 bit Integer, Historical Value, Type G
TARGET VOLUME
01001100
44h
32 bit binary, Historical Value, Type B
OTHERS
00000100
04h
32 bit binary, Current Value, Type B
Note:
See EN13757-3 Annex A ‘Coding of data records’ for details on how to decode data types.
