User Manual

2
Smart Infrastructure A6V11742346_en--_b
2020-08-24
Use
The level converter is a communication interface to readout up to
250 M-bus devices (simple M-bus loads).
The data is read via a M-bus web server WTV676, a PXC device, or via other M-bus
read/configuration systems.
Multiple level converters can be connected in parallel on one M-bus network. When
connected to a M-bus web server, up to six level converters can be connected in parallel. Up
to six level converters/repeaters can be connected in series (max. five level converters as
repeaters).
The power supply can be used to power the M-bus web server (output Vout 24Vdc).
The level converter/repeater can be connected and used as follows:
● As M-bus slave (repeater) on a M-bus web server WTV676..
● As M-bus level converter via interfaces RS-232 or RS-485 to a PXC device or a laptop.
Up to 250 M-bus devices can be connected to the M-bus master
(250 simple M-bus loads).
The input for the M-bus slave and the RS-232 interface are galvanically isolated.
Both the interface RS-485 and the output for the M-bus master are not galvanically isolated.
The output on the M-bus master is protected against short circuits.
You can also use the level converter at your own risk as an interface to suitable software and
devices by third-party manufacturers.