ZENNER EDC – Electronic Data Capture Modul - Manual (Page 13)

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General specifications EDC M-Bus and pulse:
Number of conductors 5
Cable length 1,5 m
Electromagn.
Compatibility
fulfils the European
Directive 89/336/EWG
Function Pulse output
Type P1 balanced
pulses
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 type P1.
8. Combined M-Bus/Pulse
module
Important note
For EDC applications with simultaneous use of pulse
output and M-Bus interface, only battery powered or gal-
vanically isolated pulse modules 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 re-
ception of the data contents and their further pro-
cessing, 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-spe-
cific file.
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: max. 16
Monthly values
18, plus 18
semi-monthly values
Daily values 96
Quarter hour values 96
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.