Kamstrup flowIQ 3100 Series, Technical Description, Page: 17 / 68

flowIQ® 3100 TECHNICAL DESCRIPTION
Kamstrup A/S • Technical Description • 5512 -1242_N1 _GB • 10.2019
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7 Communication
A part of the data sent via the wireless M-Bus signal is optional.
When you select a module, you can select between different protocols (C1, T1) and various reading intervals.
Each module provides the opportunity to choose between up to ten different data packages.
You MUST select a data package.
The difference between the module 50 and 41 is only the transmission interval of respectively 96 and 16 seconds.
The Packages’ cont ent is the same.
Please note that the loggers will be reset each time a change of module takes place.
Please also note that the cut-off date is always 31/12, when selecting 'annual reading'.
For DN100 only module 46 is available.
868 MHz
C1 T1 OMS Radio disabled
Modules with actual values 40/XX* 41/XX*
Module – ‘Radio off’ 99/XX*
*
For more module choices – see document
5512-2336
7.1 Optional data packages – Wireless M-Bus
The meter has a built-in radio transmitter for Wireless M-Bus Mode C1 or T1 OMS, BSI and the possibility of
configuration of data packages.
Consequently it is one way transmission. The meter does not include a radio receiver and cannot be contacted via
radio.
7.1.1 Transmission
Data packages are sent at intervals of approx. 16 or 96 seconds via the built-in antenna.
Every eights package is a ‘full string’, whereas the seven intervening packages are ‘compact strings’.
The time between transmissions depends on whether the meter is configured to 'Drive-by' or 'Fixed network' –
this selection is determined when ordering the meter, or it can be configured later by means of METERTOOL.
A ‘full string’ includes extra information on how the meter data are to be interpreted. Once a single ‘full string’ has
been received, the remaining meter population of identically configured meters can be read by a ‘compact string’.
When sending a data package each 16. second the data package is short and compressed to achieve a long
battery life.
By 96 second intervals, a long and intelligent radio package with built-in 'repair coding' is sent. At the same time
the power of the signal is higher and therefore optimized for use in fixed networks.
With the increased interval between the transmissions, the same high battery life is guaranteed.
The table below summarizes and describes the data comprised by the Wireless M-Bus data package: