M-Bus Gateways
The smart-me M-Bus Gateways read energy meters with an M-Bus interface (EN 13757-2, -3) and transmit the data automatically and encrypted via Wi-Fi to the smart-me Cloud. Using the smart-me portal or our open interface, you can then flexibly analyse the values of various energy sources (water, heat, gas, temperature) and export them to third-party systems.
The two devices
Both devices can do the same — they differ in the number of M-Bus standard loads, i.e. in how many meters can be connected to one gateway.
Technical data, wiring diagram, button functions and downloads can be found on the respective device page. Everything else on this page applies to both devices.
Compatible electricity, heat, water and gas meters
The M-Bus Gateway reads over 1000 meter types from various manufacturers. Below you will find a non-exhaustive list of compatible device manufacturers.
Note: Pay explicit attention to how the meter is declared. It can be declared as a heat meter, heat / cooling meter, water meter or electricity meter. Combined meters that are not declared as heat / cooling meters may not work correctly in combination or may only work as a heat meter.
Compatibility list M-Bus_Gateway.xlsx
Do you belong on this list too? If your product supports the M-Bus standard EN 13757-2, -3 (formerly EN 1434-3), we will be happy to list you among the compatible device manufacturers as well! Contact us.
Contacts of the device manufacturers
Ringstrasse 75, CH-4106 Therwil
+41 61 725 11 22 · www.ch.integra-metering.com
Naim Ickin · +41 61 725 11 22 · naim.ickin@integra-metering.com
Obergrundstrasse 119, CH-6005 Luzern
+41 41 319 50 50 · www.gwf.ch
Mauro Nuozzi (Head of Back Office) · +41 41 319 52 47 · mauro.nuozzi@gwf.ch
Zofingerstrasse 61, CH-4665 Oftringen
+41 62 746 99 00 · www.ista-swiss.ch
André Huber (Team Leader / Technical Center) · +41 62 746 99 10 · andre.huber@ista-swiss.ch
Eichaustrasse 1, CH-9463 Oberriet
+41 58 715 50 50 · www.neovac.ch
Heinz Marti (Head of Technology) · +41 58 715 56 90 · heinz.marti@neovac.ch
Guyer-Zeller-Strasse 14, CH-8620 Wetzikon ZH
+41 44 933 07 70 · www.optec.ch
Burak Nurten (Deputy Head of Sales Office) · burak.nurten@optec.ch
Hochstrasse 100, CH-4018 Basel
+41 58 595 77 77 · www.rapp.ch
Stephan Krummenacher · +41 58 595 77 74 · stephan.krummenacher@rapp.ch
Steinackerstr. 55, CH-8902 Urdorf
+41 43 455 65 00 · www.techem.ch
Roger Holliger (Product Management) · +41 43 455 65 16 · roger.holliger@techem.ch
Althardstrasse 10, CH-8105 Regensdorf
+41 41 669 10 10 · www.brunata.ch
Alex Nanzer (Management) · alex.nanzer@brunata.ch
Brunnenbachstrasse 1, CH-8340 Hinwil
+41 43 843 61 11 · www.belimo.com
Commissioning
On these pages you will find all relevant information for the successful commissioning of the M-Bus Gateway.
M-Bus installation instructions
How to complete the installation in no time
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Empty conduits or cable routes from the data centre to the junction boxes and the measuring devices
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Pulling in electrical cables to all measuring devices and components
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Sealable junction / connection boxes at all terminal and connection points
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Mounting of the data centre incl. connection
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Power supply 230V / 10A from sealable fuse groups
Caution: Do not apply voltage to the smart-me M-Bus Gateway. The operating voltage may only be switched on by a smart-me partner.
Recommended combination of cable routing We recommend dividing the routing of the bus lines into riser lines and branch lines:
Regulations for cable and electrical installation
The SEV regulations apply in general. You should keep the bus lines as short as possible. The following cable types are recommended:
Riser line: TT2×1,5 mm2 (preferred), maximum line length = 1000 m
Branch line: U72 1×4×0,8 mm2 (preferred), maximum line length = 50 m
Note: All junction, connection and joint points must be sealable.
Sealing is carried out by a smart-me partner.
Suggested materials
Connections/joints:
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Surface-mounted boxes: e.g. Woertz 78×78 mm
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Flush-mounted boxes: standard junction boxes
Wire connections:
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Button press connectors «Scotchlok IDC» 0,5 ... 1,5 mm2
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Standard terminals for low-current conductors
At what interval do the meters send data?
The data is read sequentially from each M-Bus meter according to the configured interval. Reading one meter takes approx. 3 seconds. The meters are read in the order in which they are listed under the M-Bus Gateway.
Technical description of the M-BUS protocol
The smart-me Cloud generally displays all data that the meter sends via M-BUS. smart-me complies with the EN 13757-2, -3 standard.
Some examples of the mapping of the M-BUS telegrams: Examples: smart-me M-BUS OBIS Mapping