User Manual

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Building Technologies M-bus System CE1P5361en
HVAC Products 7 Technical data 08.02.2007
7.6 Amount of storage space required by
Siemeca™ AMR devices
7.6.1 General
The data of the Siemeca™ AMR devices are read out via the M-bus interface of the
WTX16 or WTT16 radio node. The radio node on the M-bus has a data image of all
radio nodes and meters used in the radio network. The data volumes of the meters
transmitted via the M-bus are determined by the application code setting at the radio
node on the M-bus. In contrast to the application selection, the application code does
not allow for combinations to be made, but is ready predefined.
Application code Meaning Standard setting for WTX16
and WTT16; version …
1, 2 Cumulated values, set day
values
… up to V1.1
3 Cumulated values, set day
values, 1
st
monthly values
… up to V1.3
4 Cumulated values, set day
values, 2
nd
monthly values
Other No change
7.6.2 MEGATRON
®
2 cooling energy / heat meters,
VOLUTRON
®
2 water meters
Only one user-defined application code is possible. Combinations are not permitted.
Application
Application code
Remarks, notes
Credit Standard setting up to V1.1 Standard setting V1.3 or higher User-defined
Basic
requirement
–
Readout time, error status
17 17 17 17
Cum. values, set
day values
1, 2
Cum. energy and cum. cooling
energy, set day values
63 63 ---
Cum. values, set
day values and
1
st
month values
3
Cum. energy and cum. cooling
energy, set day values, monthly
values energy
169 --- 169
Cum. values, set
day values and
2
nd
month values
4
Cum. energy and cum. cooling
energy, set day values, monthly
values energy cooling
169 --- ---
Total
80 186