Basic Documentation

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Siemens M-bus level converter and M-bus web server A6V11157985_en--_f
Smart Infrastructure 2021-06-21
A maximum of six level converters (WTV531.., WTX631..) can be connected to
each line with a maximum of 250 M-bus devices per line.
Moreover, up to 20 M-bus devices can be connected directly to terminals M1 and
M2. Additional information on the M-bus web server terminals is available in
section 'Connect web server and level converter, pg. 27.
A Web server as master
B Level converter as slave
4.2.6 Web server with RF converters
The web server can be equipped with additional RF converters to extend the
system up to 2,500 wireless devices. Communication between the web server and
RF converters takes place over a mesh RF protocol (backbone network).
A minimum of one M-bus web server and one RF converter is required to read out
wireless devices. The backbone RF network can consist of a maximum of 23 RF
converters. Communication between the RF converters and wireless devices
takes place over the wireless M-bus protocol. The RF converter saves the
consumption data from the devices in its environment, while forwarding the data to
other RF converters, up to the web server (the other RF converters act as
repeaters in this case).