Basic Documentation
10 / 130
Siemens M-bus level converter and M-bus web server A6V11157985_en--_f
Smart Infrastructure Overview 2021-06-21
1.1.3 Web server WTV676..
The web server reads M-bus devices connected directly to the web server as well
as M-bus devices connected to the web server via level converters and wireless
devices connected to the web server via an RF converter.
It can be used:
Alone with up to 20 directly connected, wired M-bus devices
As a master on an M-bus network with up to six connected level converters and
a total of 60 logical M-bus devices per line. Up to 250 M-bus devices (max.
250 M-bus meters, max. 250 RVD controllers) can be connected per line.
As master on a wireless M-bus RF network with up to 23 RF converters, each
with up to 500 wireless devices per RF converter.
Web server has a remote readout service (WTV Remote Access) to simplify
remote access.
1.1.4 RF converter WTX660-E05060
The RF converter can read out up to 500 devices.
It is used to extend the M-bus radio network. A maximum of 23 RF converters can
be used within a single radio network.