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CE1N2874en 
14.07.2005 

Building Technologies

HVAC Products

 

 

2

874

 

 

 

 Siemeca™ 

AMR 

 

 

Network Node 

WTT16…

WTX16…

 

 

The WT…16… network node is used to receive and handle the data transmitted 
by consumption meters of the Siemeca™ AMR system. In small plants, one net-
work node suffices as a data collector. In larger plants, or when consumption 
data shall be read out from a remote location, an M-bus interface for connection 
to an OZW10 M-bus central unit or a Siemeca™ gateway is required. The 
WTT16… network node is battery-powered, the mains-powered WTX16… version 
is available for special applications. 

Use 

The WT…16… network node is a component of the Siemeca™ system. It has been 
designed for use in buildings to create a radio network for receiving and storing the 
data transmitted by the consumption meters installed in the building. Communication 
between several network nodes is via radio also so that no wiring is required. All meas-
ured values acquired by the consumption meters are continuously exchanged within 
the network, which means that every network node stores the current consumption 
values, the values read out at the end of the month, and the set day values of all meter-
ing devices on the network. Owing to this operating principle, all network data can be 
read out at any of the nodes, or a Siemeca™ gateway for remote data transmission can 
be used with any of the nodes. The field of use of the Siemeca™ AMR system is de-
scribed in data sheet N2870. 

Summary of Contents for WTT16 Series

Page 1: ...nent of the Siemeca system It has been designed for use in buildings to create a radio network for receiving and storing the data transmitted by the consumption meters installed in the building Communication between several network nodes is via radio also so that no wiring is required All meas ured values acquired by the consumption meters are continuously exchanged within the network which means ...

Page 2: ... system must not be ex ceeded The network nodes with gateway and integrated M Bus master WTX16 GSM and WTX16 IP are able to read M Bus meters according to EN1434 3 Technical design The network node consists of the following subassemblies transceiver for Siemeca network memory for 500 meters M Bus Slave RS232 optional backup battery power supply mains supply WTX16 battery WTT16 Receiver and transmi...

Page 3: ...ton for switching the display blue 8 Reset button recessed 9 Display 10 Connector not for the user 11 Firmware memory covered up The wall mounted section of the network nodes WTT16 contains only the main battery The wall mounted section of the network nodes WTX16 and WTX16 232 contains the power pack and possibly an additional RS232 interface GND n c RTS CTS Rx Tx 4 2 7 3 5 6 1 1 Mains connection ...

Page 4: ...ing de vices are received stored and further handled by the network Extended standard mode1 M The receiver is always active to ensure fast communication This mode is automatically activated in the case of mains powered opera tion WTX16 It can also be started manually with the ACT26 service tool Installation mo de2 In installation mode the radio network will be configured automatically Metering dev...

Page 5: ...onal interface s CAUTION connect the mains cable to the power supply unit only 1 2 3 1 Mains connection L and N 2 Preinstalled mains cable no flexible power cable 3 Extra insulation shrink sleeve Connect the AC 230 V power supply line to the power pack of the WTX16 in the following order Remove the upper housing section of the WTX16 from the base For that purpose remove the 2 cable connections pow...

Page 6: ...aintained Staff dealing with the product must be familiar with all potential hazards and mainte nance measures in accordance with the instructions given in this document Non observance of these warning notes can lead to personal injury or damage to property Ensure that the local regulations for radio transmission installations and electrical instal lations are complied with Pursuant to the Verordn...

Page 7: ...similar behavior in other modes too The main battery used by the WTT16 requires careful treatment Do not short circuit or damage the battery Do not expose the battery to excessive heat Return exhausted batteries to the supplier Read the enclosed safety instructions carefully M Bus connection Any network node can be connected to the M Bus temporarily service connector or continuously screw terminal...

Page 8: ...ions in mm WTX16 WTT16 The information provided in this Data Sheet only gives general descriptions and general technical features which in the case of specific applications may not necessarily apply or which may change due to further development of the product Technical features are binding only when expressly agreed upon at the time a contract is concluded 2002 Siemens Building Technologies AG Su...

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