User Manual

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Building Technologies M-bus System CE1P5361en
HVAC Products 3 M-bus devices and Siemeca™ AMR 08.02.2007
Type Reference Family of products Data Sheet Planning Manual
System
Siemeca™ AMR N2870 J2870
WTT16
Siemeca™ AMR N2874
WTX16
Siemeca™ AMR N2874
WFM26…
MEGATRON
®
2 N5333
WFQ26…
MEGATRON
®
2 N5333
WMM26…
MEGATRON
®
2 N5335
WFN26…
MEGATRON
®
2 N5338
WFR26…
MEGATRON
®
2 N5338
WMN26…
MEGATRON
®
2 N5339
WFH26…
VOLUTRON
®
2 N5341
WFC26…
VOLUTRON
®
2 N5341
WMH26…
VOLUTRON
®
2 N5343
WMC26…
VOLUTRON
®
2 N5343
WHE26
MEGATRON
®
2 N2872
AEW36.2
Siemeca™ AMR N2873
3.4.2 Use
 The Siemeca™ AMR system is used for consumption cost billing in multifamily
houses. The following types of wireless consumption meters can be read out:
 Heat meters MEGATRON
®
2
 Water meters VOLUTRON
®
2
 Heat cost allocators MEMOTRON
®
WHE26
 Consumption meters via pulse adapter AEW36.2
3.4.3 Functions
For detailed information about the functions of the radio nodes and meters, refer to the
System Description of Siemeca™ AMR and the related product documentation.
The meters send their data periodically to the WTX16 or WTT16 radio nodes. Up to 12
radio nodes are capable of forming a radio network comprising up to 500 meters. Radio
nodes of the network can be connected to the OZW10 via M-bus. Every radio node
stores all data of the meters and of the radio nodes of a network and delivers them for
readout. The OZW10 cannot directly access the wireless meters.
For more information, refer to the following sections:
8.6 "Data of M-bus devices available on ACS7… "
8.5.5 "Data of M-bus devices stored in the billing file"
8.7 "Error messages from M-bus devices and alarm messages delivered by the
OZW…".
3.4.4 Equipment combinations
Siemeca™ AMR can be combined with any other M-bus-compatible devices within an
M-bus system.
The M-bus device handles every WTX16 or WTT16 radio node and every meter con-
tained in the radio network as an autonomous M-bus device. An entire radio network
produces 1 standard load on the M-bus. If several radio networks are interconnected
within an M-bus system, different primary addresses (address of the radio network)
must be assigned to the WTX16 or WTT16 radio nodes on the M-bus.