Zenner Electronic Data Capture Installation And Operating Instructions Manual page 12

Pulse value of the modulator disc
Digit rollers
8-digit register with modulator
disc
6-digit register with modulator
disc (DN50-DN125)
6-digit register with modulator
disc (DN150-DN200)
5. Radio modules
The EDC wireless M-Bus radio modules of the first
generation are available in T1 mode. The EDC wM-
BUS V2 modules send in C1 mode.
The modules operate unidirectional and usually
send every 20 seconds. Special versions possible.
The LoRaWAN® variant is available with a monthly
(scenario 1) or daily (scenario 2) transmission
interval.
A variant with hourly values (scenario 3 = 8 telegrams
with 3 hourly values each) is available on request.
Data telegram contents (wM-Bus)
The EDC module can be delivered with various data
telegrams:
Telegram contents
Current value
Current date
Due date values
Current value
Another 11 monthly values
Status information 1
Status information 2
The type designations A, B and C apply to modules
with firmware versions lower than 1.74.
From firmware version 1.74 the designations 320,
321, 322 are valid.
* Data telegram according EN 13757-4, Transmission
interval 20 sec.
** wM-Bus, manufacturer specific data telegram,
Transmission interval 16 sec.
Pulse value
1 Rotation = 1 Liter
1 Rotation = 10 Liter
1 Rotation = 100 Liter
320* 321* 322**
(Typ A) (Typ B) (Typ C)
✓ ✓ ✓
✓ ✓
✓ ✓
✓ ✓ ✓
✓
✓ ✓ ✓
✓ ✓ ✓
Data telegram contents (LoRaWAN®)
Telegram contents
Serial number
(DevEUI EDC-module)
Device-specific informa-
tion (firmware version,
LoRaWAN®-version,
device type)
Due date value and date
[01.01.]
Changes of status
(manipulation, battery
warning,...)
Scenario 201 (monthly)
Telegram contents
Monthly value (previous
month) [liter], status
information, actual date
and time
Monthly value (previous
month) [liter], mid-month
value, actual date and
time
Scenario 202 (daily)
Telegram contents
Daily values (previous
day) [liter]
Status information,
actual date and time
Scenario 203 (8 telegrams per day)
Protocol content
each packet contains the
last 3 hourly values
Interval Packet
once at join SP 9.2
six-monthly SP 9.2
every year on
SP 4
due date
erratic
AP 1
(event based)
Interval Packet
monthly
SP 2
(beginning)
monthly
SP 3
(middle)
Interval Packet
daily SP 1
monthly SP 9.1
Interval Packet
3 hours SP 12
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