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Type summary
Ordering
Equipment combinations
Technical design
blue / red
to AEW
white
R1
R2
Power supply
Data transmission
Engineering notes
Length of connecting
cable
2/6
Building Technologies
Standard version AEW310.2:
Connection of 2 meters to the connecting cable by means of the cable connectors sup-
plied with the unit.
When ordering, please give type reference: AEW310.2
When installing, the pulse adapter must be programmed with the data set delivered
with the parameter setting software for the respective meter. If meters not contained in
the meter data base shall be connected, a new data set must be requested.
With the correct data set installed, the following types of meters can be connected:
Water meters with pulse output
Heat meters with pulse output
Gas meters with pulse output
Steam meters with pulse output
Electricity meters with S0 interface (note: an additional S0 converter is required, e.g.
z.B. IC-2, available by Nordwestdeutsche Zählerrevision Ing. Aug. Knemeyer GmbH
& Co. KG, Heideweg 33, 49196 Bad Laer)
The pulse adapter handles only pulses from potential-free pulse sources, according
with the following specification:
Pulse source
Electronic outputs
(Open Collector,
Open Drain)
Mechanical switches
(Reed contact, re-
lays)
Mechanical switches
with NAMUR circuits
The inputs are protected against overvoltages. Open collector outputs must be con-
nected with the correct polarities:
Channel 1: + blue, ground white, Channel 2: + red, ground white
The pulse adapter is powered by a lithium battery which has a service life of 12 + 1 years.
It cannot be changed in the field. During connection to M-bus the pulse adaptor will be
powered from M-bus.
Data are transmitted inside M-Bus network to the central unit on demand..
For immunity reasons, the total length of the connecting cable may not exceed 10 m.
Pulse Adaptor AEW310.2
limit values (if parameters are appropriately set)
residual voltage when switched
max. frequency
min. pulse width
bounce time
max. frequency
min. pulse width
resistor R1
resistor R2
< 0.7 V
< 17 Hz
30 ms
< 1 ms
< 2 Hz
260 ms
2.2 k
5.6 k
CE1N5383en
2016-02-12
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