Basic Documentation

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Siemens M-bus level converter and M-bus web server A6V11157985_en--_f
Smart Infrastructure 2021-06-21
2 Mounting
The level converter and web server are designed for mounting on 35 mm rails.
They take up the equivalent of four standard modules on the rails.
Additional information on mounting is available in the mounting instructions for the
level converter [3] and the web server [5].
Mounting Removal
3 Connections
3.1 Level converter WTV531..
The level converter WTV531.. has the following connection terminals / LEDs.
A Power supply AC/DC 24V
Terminals (8) and (9)
B Connections for M-bus devices
and.
Connections for following slave level
converters, if this one is used as the
master.
Terminals (6) and (7)
C Connections to connect to a M-bus web
server
and / or
Connections to connect the prior level
converter, if this level converter is used
as a slave.
Terminals (1) and (2)
D RS-232 interface to connect a PC or M-
bus master
A = TX
B = RX
C = GND
Terminals (3), (4), and (5)
E PC connection
Mini-USB type B
F
LEDs
For the meaning of LED indicators, see section Display elements
page 34.