User Manual

3
Siemens
A6V107
86229_en
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_e
Building Technologies 2017-05-12
Functions
Depending on the type of communication, the heat cost allocators are classified as follows:
● No communication interface
● With optical communication interface (optional)
● With RF interface
No communication interface
Heat cost allocators without communication interface WHE50.. must be read visually on site
and the measuring results must be manually recorded. They are especially suited for
systems that do not require complex data evaluations or particularly fast readout processes.
With optical communication interface
The heat cost allocator with optical communication interface can be read on site using an
infrared adapter and a suitable computer and the data can be archived for later evaluation.
With RF interface
Heat cost allocators that can communicate wirelessly send in S-mode or C-mode parallel to
AMR and walk-by data telegrams. The AMR telegrams comply with OMS in C-mode.
Walk-by
The heat cost allocators are locally read via radio. They transmit consumption data at the set
reading time. Using the mobile data collector (WTZ665-BD5000) and a netbook/tablet with
the associated software (ACT46.PC), the person taking the reading collects the radio
telegrams. The meter-reader does not have to enter the user’s residence or office.
In the case of smaller plants, the data can usually be collected from outside the building.
AMR
The heat cost allocators transmit the current consumption data in cycles to the network
nodes. They automatically collect the data of all integrated heat cost allocators and store
them. The customer can then read out all consumption data of a plant from a remote
location.
Readout parameters
The heat cost allocators transmit the following parameters via RF:
● Device number (8 digits)
● Type of device/software version
● Time of day/date
● Error status
● Error date
● Current consumption
● Due date
● Due date value
● Counter reading at end of last month
● 13 monthly values (only for walk-by)
Tampering
The heat cost allocator is equipped with a factory installed lead seal.
Any unauthorized device opening is registered, shown on the display (WHE50..) and
transmitted via radio (WHE5.. / WHE6..).