M-Bus-Module WZU-Mx
Installation and Operating Guide
M-Bus-Module WZU-MB / MI
Subject to changes
Page 5 / 10
This is done in the menu
Parameterization
/ submenu
M-bus module G4
using the
“Select data”
function.
The following restrictions must be observed.
Normal read-out mode: up to 228 values
– output bytes in the M-bus frame
Fast read-out mode: up to 8 measured values per telegram
no output of values from the previous month or the previous year
in the M-bus telegram
In the “normal read-out mode” and “fast read-out mode” columns, the current status of the telegram length
is shown
in “Maximum frame size [actual length/ max. length]”.
Note: The sequence of the selected values does not have any effect on the sequence of the value output in
the M-bus telegram.
The previous month’s values and the previous year's values are not output in fast read-out mode.
With the
“Set Default values”
button, the factory settings of the output lists are restored for “normal read-
out mode” and “fast read-out mode”. The output lists are then as they were in the 2nd generation and are
therefore downward compatible.
4
NTA-compliant data output
NTA 8130 (
N
etherlands
T
echnical
A
greement) is a regulation of Dutch origin. Its objective to achieve
interoperable communication between consumption devices (electricity, gas, heat and water meters), and
thus to facilitate the modern requirements of Smart Metering.
The requirements and procedures are described in detail in the „
D
utch
S
mart
M
etering
R
equirements“ - the
„P2 Companion Standard“ - (DSMR P2) applies for the meter M-bus module.
In firmware version 4.11 and higher
of the M-bus module WZU-
Mx, the „NTA-compliant data output“ is a
third operation mode along with the „normal read-out mode“ and the „fast read-out mode“.
In the "NTA-
compliant data output“ operating mode, the data output list for the M-bus interface is
predefined, and only varies with the "device type" (=M-Bus identification for the media type).
To use the NTA-compliant data output, the meter must have
at least firmware version 5.17
.
The NTA-compliant data output is activated using the service software at the meter. The adjustment is
done under
the „
Parameterization“
/ „
NTA“
menu. This menu item will be offered with meter firmware
5.17 and higher, when the meter has been prepared for parameterization.
The appropriate module is not
required to be plugged in the meter.
