Zenner Electronic Data Capture Module, Инструкция по установке и эксплуатации

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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 M-Bus 1
White M-Bus 2
Technical data EDC M-Bus
Number of conductors 2
Cable length 1.5 m
Electromagnetic
compatibility conforms the directive
89/336/EWG
7 Pulse modules
The pulse modules can be delivered in three differ -
ent versions.
Mode U will be delivered as a standard.
Technical data pulse module
Number of conductors 3
Cable length 1.5 m
Output type N-channel
open-drain
(equivalent to open-collector)
Max. output voltage 24 VDC
Max. output current 50 mA
Pulse length ≥ 50 ms
Output resistance (open) 110 Ώ
Output capacitance
(closed)
1 nF
Elektro-magnetic
compatibility conforms
the directive 89/336/EWG
Pulse value for all meters
with modulator disc
DN15-40, 1 l/pulse
DN50-125, 10 l/pulse
DN150-200, 100 l/pulse
Cable assignment
green Output 1
yellow Output 2
grey Ground (GND)
EDC-Pulse Output 1 Output 2
Mode U balanced* pulses
Dismounting module
alarm resp. cable break
detection (normal state
= closed)
Mode B1 Forward pulses Reverse pulses
Mode B2
Forward and reverse
pulses Flow direction
(open = forward)
*
Reverse pulses are reduced by the corresponding number
of forward pulses.
Function of the pulse modules output according to ISO
22158
8 Combined M-Bus and pulse module
The combined M-Bus and pulse module has been
developed specifically to enable the simultaneous
readout by two different users. In this case the pulse
version will be delivered by standard as Mode U .
Technical data EDC M-Bus and pulse
Number of conductors 5
Cable length 1.5 m
Electromagnetic compat-
ibility conforms the directive
89/336/EWG
Funktion pulse output Mode U, balanced pulses
Important note
For EDC applications with simultaneous use of pulse
output and M-Bus interface, only battery powered
or galvanically isolated pulse modules can be con-
nected to the pulse outputs. Otherwise, the EDC
module may be damaged in the case of a potential
difference between the connected devices.
9. AES-Key
The EDC-modules send their data contents only en-
crypted (AES-128, device-specific according to OMS,
optionally customer-specific). To enable reception
of the data telegrams and their further processing,
the AES-Key has to be furnished to the respective re-
cipients of the AES-Key. ZENNER usually delivers the
AES keys of the devices via electronic delivery note,
which can be downloaded from an associated portal.