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Article no.: 1081600001
Last update: 2019_02_20
Subject to technical modifications.
The transmission quality (range, telegram processing) of the meters can be influenced by devices / installations
with electromagnetic radiation such as telephones (especially LTE mobile radio standard), WLAN routers, baby
phones, radio remote controls, electric motors, etc.
The structure of the building can strongly influence the transmission range. In case of installation in installation
boxes, these must be equipped with non-metallic covers / doors.
The counter time is factory set to winter time (GMT +1). There is no automatic changeover to summer time.
The radio is deactivated on delivery (factory setting; see "Activating the radio interface").
7.2.1 Technical data radio transmission
Operating frequency
868 MHz
Transmitting power
up to 14 dBm
Protocol
wireless M-Bus based on EN 13757-3, -4
Selectable operating
mode
T1 / C1
Telegrams
-
short telegram in conformity to AMR (OMS-Spec_Vol2_Primary_v301):
current meter reading, information code, return flow volume at last key date,
type version (= second-to-last „version“ at the end of the telegram)
-
long telegram for walk-by read-out:
current meter reading, information code, last key date, meter reading at last key
date, return flow volume at last key date, 15 monthly values, type version (=
second-to-last „version“ at the end of the telegram)
Encoding
AES: Advanced Encryption Standard; key length: 128 bits
7.2.2 Radio configuration
Parameters
Possible settings
Factory setting
(Operating time; designed: 10 years)
Mode
T1, C1; unidirectional
T1; unidirectional
Transmitting time
00:00 h - 24:00 h
8:00 h - 18:00 h
Transmission interval
30 seconds - 240 minutes
120 seconds
Weekdays
Monday - Sunday
Monday - Friday
Weeks
1 - 4
1 - 4
Months
1 - 12
1 - 12
Radio activation date
01.01. - 31.12.
not set
Radio activation volume starting from 1 liter accumulated volume;
freely selectable (hourly check of
activation condition)
200 l
AES-128-encoding
-
unencrypted
-
encrypted according to MODE 5:
-
master key
-
key per device
master key
Telegram type
-
short telegram conform -> AMR
(OMS-Spec_Vol2_Primary_v301)
-
long telegram -> Walk-by
long telegram -> Walk-by
7.2.3 Activating the radio interface
The radio interface is deactivated by default and can be activated in two ways:
a) The radio function can be switched on with the key.
By pressing the button for min. 3 seconds and max. 5 seconds, switch to the second display loop, which is indicated
by the diamond symbol. Then briefly press the button twice until you reach the alternating display "Monthly value
3 / Date 3" (recognizable by the double symbol "I#").
