Zenner EDC Manual De Montaje Y Operacion página 12

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6. M-Bus module
The EDC-module as M-Bus module is used for
integration of water meters in wired M-Bus net-
works. The EDC-M-Bus module which is mount-
ed on the water meter enables the reading of the
water meter via Bus.
Cable assignment (polarity protected):
Brown
White
General specifications EDC M-Bus:
Number of conductors
Cable length
Electromagn.
compatibility
7. Pulse modules
The pulse modules can be delivered in three
different versions. Mode U will be delivered as
a standard.
EDC-Pulse
Output 1:
Dismounting module alarm
Output 2: resp. cable break detection
(normal state = closed)
Function of the pulse modules output according to ISO 22158
* Reverse pulses are reduced by the corresponding number of forward pulses
12
Français
M-Bus 1
M-Bus 2
2
1,5 m
fulfils the European
Directive 89/336 EWG
Mode U:
balanced* pulses
Italiano España
Cable assignment
Green
Yellow
Grey
General specifications EDC pulse
Number of conductors
Cable length
Output type N-channel
Max. output voltage
Max. output current
Pulse length
Output resistance (open)
Output capacitance
(closed)
Electromagn.
Compatibility
Pulse value for
all meters with
modulator disc
Mode B1:
Forward pulses
Reverse pulses
Output 1
Output 2
Ground (GND)
3
1,5 m
open-drain
(equivalent to
open-collector)
24 VDC
50 mA
≥ 50 ms
110 Ώ
1 nF
fulfils the European
Directive 89/336/EWG
DN15-40 1 L/Imp.
DN50-125 10 L/Imp.
DN150-200 100 L/Imp
Mode B2:
Forward and reverse pulses
Flow direction (open = forward)