Basic Documentation

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Siemens M-bus level converter and M-bus web server A6V11157985_en--_f
Smart Infrastructure Engineering 2021-06-21
4.2 Operation modes
4.2.1 Level converter WTV531.. with ACT531 software
The level converter is used as the communication interface between M-bus
devices and a laptop using the ACT531 software. The ACT531 software can read
up to max. of 1,000 devices.
Up to 60 devices (60 unit M-bus loads) can be connected.
The data is read locally using a USB connection or via the RS-232 interface.
A Level converter as master
B Laptop with ACT531 software
A Level converter as master
B Laptop with ACT531 software
4.2.2 Level converter with Desigo CC
The TX Open module integrates M-bus devices in the Desigo CC management
platform via the RS-232 interface.
Additional information on the Desigo CC management platform is available in the
engineering guide “Desigo TM TX Open, TX M-Bus”, document CM110572. See
section 'Referenced documents'.