Basic Documentation

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Siemens M-bus level converter and M-bus web server A6V11157985_en--_f
Smart Infrastructure 2021-06-21
1 Overview
1.1 Device functions
1.1.1 Level converter WTV531..
The level converter WTV531-GA5060 is a communications interface for reading up
to 60 M-bus devices (simple M-bus loads).
The data is read out:
 Locally using the ACT531 PC software via USB
 Locally using the ACT531 PC software via the RS-232 interface
 Via the M-bus web server WTV534.., WTV676..
 Via Desigo CC
Up to six level converters can be connected in parallel to a M-bus web server
WTV676.. (Master) on a M-bus network.
Up to 60 M-bus devices can be connected to each level converter WTV531...
The level converters can be used:
 As individual components on a M-bus network.
 To extend a M-bus network by up to six level converters connected in
parallel.
You can use the level converter at your own risk as an interface as well to suitable
software and devices by third-party manufacturers.
The level converter is protected against short circuits.
1.1.2 Level converter WTX631..
The level converter/repeater WTX631-GA0090 is the interface between
M-bus devices and a readout system. It consists of a level converter/repeater and
power supply.
Level converter WTX631.. can be connected and used as follows:
 As a slave to line M1M2 on the M-bus web server WTV676.. to read out
the device data via the M-bus web server (repeater).
 For reading out device data via the M-bus web server (level converter)
over the RS-232 interface
 Via the RS-232 or RS-485 interface to read out the device data via a PXC
device or PC (level converter)
 As master on an M-bus network with up to 250 M-bus devices
 As power supply for the M-bus web server.
You can also use the level converter as an interface to suitable third-party software
and devices (at your own risk).
The level converter is galvanically isolated and protected against short circuiting.