Technical data EDC-radio
wM-Bus
wireless M-Bus
unidirectional,
Transmission
from firmware 1.78:
rate
C1/T1
up to firmware 1.78:
T1
Encryption
AES-128
mode
Encryption mode 5
typically 20 s;
Transmission
other configurations
interval
possible
Transmission
25 mW
power
Frequency
868 MHz
6. M-Bus module
The EDC-module as M-Bus module is used for inte-
gration of water meters in wired M-Bus networks.
The EDC-M-Bus module which is mounted on the
water meter enables the reading of the water meter
via Bus.
Cable assignment (polarity protected)
Brown
White
Technical data M-Bus module
Power supply
M-Bus telegram
Operating
temperature
Protection class
Cable assignment
Supported baud rates
(configurable)
Cable length
Electromagnetic
compatibility
LoRaWAN
LoRaWAN®
bidirektional (class A)
AES-128
Scenario 201:
(monthly)
Scenario 202:
(daily)
Scenario 203:
8 telegrams per day,
each with the last 3
hourly values
25 mW
EU 868 MHz / 915-928
MHz for Brazil
M-Bus 1
M-Bus 2
Lithium long-life battery (lifetime
up to 15 years depending on
environmental conditions)
M-Bus (EN 13757-3)
> 0 °C to + 55 °C
IP 68
reverse polarity protection
300, 2400 (standard ex works),
9600
1.5 m
complies with the Directive
89/336 / EEC
7. Pulse modules
The pulse modules can be delivered in four
different versions.
Mode U will be delivered as a standard.
Technical data pulse module
Number of conductors
Cable length
Output type N-channel
Max. output voltage
Max. output current
Pulse length
Output resistance (open)
Output capacitance
(closed)
Electromagnetic
compatibility
Pulse value for all meters
with modulator disc
Cable assignment
green
yellow
grey
EDC-Pulse
Output 1
Mode U
balanced* pulses
Mode B1
Forward pulses
Forward and reverse
Mode B2
pulses
Forward and reverse
pulses
Mode B3
(Output 1 before
Output 2)
* Reverse pulses are reduced by the corresponding number
of forward pulses. Function of the pulse modules output
according to ISO 22158
The adjustment of the modes is possible with the
ZENNER-MSS Software by use of a ZENNER
MinoConnect bluetooth or USB and the combined
ZENNER IrDA optical head.
Alternatively, the ZENNER Device Manager Basic app
can be used instead of the MSS software in
connection with the universal interface MinoConnect-
BluetoothRadio.
3
1.5 m
open-drain
(equivalent to open-collector)
24 VDC
50 mA
125 ms (from serial number
EZRI0252046248);
50 ms (up to serial number
EZRI0252046247
110 Ω
1 nF
complies with the Directive
89/336 EEC
DN15-40, 1 l/pulse
DN50-125, 10 l/pulse
DN150-200, 100 l/pulse
Output 1
Output 2
Ground (GND)
Output 2
Dismounting module
alarm resp. cable break
detection (normal state
= closed)
Reverse pulses
Flow direction
(open = forward)
Forward and reverse
pulses
(Output 2 before
Output 1)
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