Basic Documentation
20 / 130
Siemens M-bus level converter and M-bus web server A6V11157985_en--_f
Smart Infrastructure Engineering 2021-06-21
PC must be connected to the master level converter WTV531.. (A) to readout data
and other PCs cannot be connected simultaneously connected to slave level
converters (B).
4.2.4 Web server
The web server is used to read up to 20 directly connected devices (20 unit M-bus
loads).
A PC / Internet browser reads the data either locally over Ethernet or from
anywhere over the Internet.
4.2.5 Web server with level converters
The web server is equipped with additional level converters over two lines to
extend the system by up to 500 logical M-bus devices (max. 250 per line).
The web server is operated as the master. Up to 20 M-bus devices (20 unit M-bus
loads) can be directly connected (Line M1M2).
The level converters are connected as slaves to the web server. Up to 60 M-bus
devices can be connected to the level converter WTV531.. and up to 250 M-bus
devices can be connected to the level converter WTX631.. (60 or 250 simple M-
bus loads.
Important