25
The radio interface is always deactivated at delivery. To activate the device,
no software is required. Only the activated sleep mode has to be finished:
Devices that are in sleep mode (Display: SLEEP 1) must be activated by at
least five second press of the button until the energy display appears. The
radio energy meters are equipped with an internal antenna.
General technical
data
wireless M-Bus
LoRaWAN
TM
Frequency:
868 MHz
868 MHz
Radio protocol:
Wireless M-Bus (EN 13757-4) and
according to the Open Metering
Standard (OMS) different radio
telegram contents are possible
according to LoRa specifica
-
tions
Data transmission:
unidirectional, standard: Mode T1
(other modes on request), 128-bit
AES encryption
LoRa Device Class A
Sending interval:
depending on the used
lithium battery and if the meter
is equipped with pulse inputs
whose data are also transmitted
Standard: 120 seconds; further
configurations on request
Daily or monthly (incl. half
month values), temporary ≥
15 minutes
Note:
Diagnosis protocol see sepa-
rate description
Transmission
power:
up to 25 mW
up to 25 mW
Example for wireless M-Bus radio protocol
Example
Heat meter
Unit
Medium
Thermal energy
Manufacturer
ZRI
Serial number
12345678
Version
12
Main energy meter
123456
kWh
Main volume meter
123456
L
Energy meter (consumption) on due date
119230
kWh
Date last due date
01.01.2019
Volume flow
127
l/h
Heating power
2828
W
Supply temperature
44.3
°C
Return temperature
25.1
°C
Error code
0
Last previous month value
121234
kWh
Other protocol values on request
Summary of Contents for zelsius C5-ASF
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