Communication
20/26
9.3
Wireless M-Bus
The wireless M-Bus function enables the meter to communicate with a sta-
tionary unit (e. g. radio concentrator, smartphone with radio adapter) using
868 MHz radio frequency (unlicensed).
The function supports the OMS
1)
-compliant data transfer.
Standard
Open Metering System Specification
(Issue 3.0.1); EN 13757-4
Frequency
868.95 MHz (min. 868.90 MHz to
max. 869.00 MHz)
Transmission power
Min. 3.16 mW (5 dBm) to
max. 25 mW (13.9 dBm)
Range
2)
-
Free field
Up to max. 400 m
Power supply
max. 3 batteries type AA
Sending interval
-
Mobile data reading
-
Stationary data reading
-
User defined data reading
Acc. to configuration 20
– 34 sec
15 min
Acc. to telegram length 12
– 900 sec
1)
Open Metering System
2)
May vary depending on terrain and building structure
Predefined data telegrams
Note:
Please tell us if encryption needs to be set at factory. The
unique encryption key for every meter will be created and you will
get a file by email (meter number <> encryption key).
Data telegram F000
– stationary radio (sending interval 15 min)
Following data are available by default for data reading:
Current energy
Current volume
Current flowrate
Current power
Current temperature hot side
Current temperature cold side
Error (manufacturer specific)
Current timestamp (type I)
