Zenner EDC Manual De Montaje Y Operacion página 13

8. Combined M-Bus/Pulse
module
The combined M-Bus and pulse module has
been developed specifically to enable the simul-
taneous readout by two different users. In this
case the pulse version will be delivered by stan-
dard as Mode U.
General specifications EDC M-Bus and pulse:
Number of conductors
Cable length
Electromagn.
Compatibility
Function Pulse output
Important note
For EDC applications with simultaneous use of
pulse output and M-Bus interface, only battery
powered or galvanically isolated pulse mod-
ules can be connected 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
encrypted (AES-128, device-specific according
to OMS, optionally customer-specific). 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
usuallyby means of electronic delivery or by
customer-specific file.
5
1,5 m
fulfils the European
Directive 89/336/EWG
Mode U balanced
pulses
10. Readout Data logger
The EDC modules have an internal memory
(data logger). The readout of the data which are
not already transmitted in the above data tele-
grams is carried out by means of the optical head
and GMM software.
Data logger:
Annual due date values:
Monthly values
Daily values
Quarter hour values
EDC Data logger
11. Smart Metering functions
Self-monitoring:
The module has an integrated battery status
monitoring.
Tampering detection:
It will be detected as soon as the scanning coils
of the EDC module are affected by a magnet. In
the event memory date and time of the event will
be memorized.
Dismounting of module and meter
detection:
The detection is possible at all meters with grey
register cap. A hall sensor detects here as soon
as the EDC module was dismounted from the
register. The event memory stores the date and
time of the event.
max. 16
18, plus 18
semi-monthly values
96
96
13