Zenner PDC Manual De Montaje Y Operacion página 13

6. M-Bus modules
The PDC as M-Bus module is used for integra-
tion of water meters in wired M-Bus networks.
Connecting PDC M-Bus modules with impulse
emitting water meters enables reading of the
water meter via Bus.
Technical specifications PDC M-Bus:
Number of conductors
Cable length
Electromagn.
Compatibility
Cable assignment:
white
brown
+
- +
INPUT A
+
GND
INPUT B
GND
2
1,5 m
fulfils the European
Directive 89/336 / EEC
M-Bus 1
M-Bus 2
Fig.:
Connection sketch
PDC-M-Bus
-
INPUT A
GND
M-BUS 1
INPUT B
M-BUS 2
GND
7. AES-Key
The PDC modules send their data contents only
encrypted (AES-128, device-specific According to
OMS). To enable reception of the data contents
and their further processing, the AES-Key has to
be furnished to the respective recipients of the
AES-Key. ZENNER provides the AES keys to the
devices usually by means of electronic delivery,
and via download or customer specific file in the
future.
8. Readout data logger
The PDC modules have an internal memory (data
logger). The readout of the data, which are not al-
ready transmitted in the above data telegrams is
carried out by means of the optical interface using
MinoConnectRadio, the ZR-optical head IrCombi-
Head and appropriate software.
Data logger:
See point 2. Table General Specifications.
+
+
+
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