M-Bus Gateway TCP/IP
CMe3100
Product categories
Water,
Heat / Cooling,
Electricity,
Gas
M-Bus Metering Gateway
Water
Drinking Water
Heat / Cooling
Electricity
Gas
System technology
Wired
M-Bus,
Modbus,
Ethernet
Instruments
Smart City
Smart Building
Your benefits
- Intelligent link between system and M-Bus devices:
The CMe3100 M-Bus metering gateway fulfils all requirements in terms of flexibility and versatility and makes data integration easier than ever before. - Flexible meter reading:
Reading of the measured values by the time-saving online query via the web platform or on site. - Unique capabilities:
Whereas previously it was difficult to connect an M-Bus system via Modbus TCP, JSON-RPC or REST, the CMe3100 enables integration into peripheral systems, e.g. a building management system, without additional devices. - Preferred M-Bus splitter:
The CMe3100 supports the complete M-Bus standard, and splitting all bus participants to two further systems via wired M-Bus is easy. - Infrared interface for modular extensions:
Metering gateway can be used for the connection of additional measuring points (––> investment protection).
Applications
- Fast and simple measurement data acquisition incl. integrated statistical functions
- Integration of measurement data in (building) management systems or other peripheral systems
- Complete gateway integration based on e.g. DLMS or REST

Downloads
Links
M-Bus Hub (CMe3100 Box)Properties
- Data can be sent to FTP and https server
- Different executions with support for 8, 32, 64, 128, 256 or 512 devices available
- Various templates available for sending meter data
- Integration of wireless M-Bus participants (T & C mode) with CMi-Box
- DIN mounted, modular and expandable – future-proof solution
- Various extension modules (infrared interface) available
- Supports static and dynamic IP addressing
- Configuration changes and ad hoc read-out can be carried out remotely
- M-Bus protocol according to EN 13757-3
- Two M-Bus slave outputs for splitting the system to further systems
- Flexible extension system TCP, JSON-RPC, DLMS/REST
Product information
Integration M-Bus Gateway

Fig. 1: Measurement data acquisition and integration in SCADA system

Fig. 2: Gateway integration via DLMS / REST server
Technical Data
CMe3100 | CMeX10 | ||||
---|---|---|---|---|---|
Mechanics | CMe3100 | CMeX10 | CMeX11 | CMeX12S | CMeX13S |
Dimensions (HxBxD) | 90x70x64 mm (4 DIN modules) | 90x36x65 mm (2 DIN modules) | 90x108x65 mm (6 DIN modules) | ||
Weight | 190 g | approx. 100 g | approx. 220 g | ||
Installation | Hat rail (EN 50022), 35 mm | Hat rail (EN 50022), 35 mm | |||
Casing material | Polyamide | Polyamide | |||
Protection class | IP20 | IP20 |
CMe3100 | CMeX10 | ||||
---|---|---|---|---|---|
Terminals | CMe3100 | CMeX10 | CMeX11 | CMeX12S | CMeX13S |
Power supply | L, N Screw terminal cable 0 - 2.5 mm2 0.5 Nm tightening torque L, N | L, N Screw terminal cable 0.75 - 2.5 mm2 0.5 Nm tightening torque | L, N, Erde Screw terminal cable 0,75 - 2,5 mm2 0,5 Nm tightening torque | ||
M-Bus | Screw terminal, 0,25 - 1.5 mm2 | Pin terminal solid wire Ø 0.6 - 0.8 mm | Pin terminal solid wire Ø 0.6 - 0.8 mm and Screw terminal cable 0.25 - 2.5 mm2 0.5 Nm tightening torque | ||
Ethernet | RJ45 | Not available | |||
RS232 | Not available | Not available | RJ45 | ||
USB | Typ A (Master Port) / Typ mini B (Slave Port) | Not available |
CMe3100 | CMeX10 | ||||
---|---|---|---|---|---|
Electrical | CMe3100 | CMeX10 | CMeX11 | CMeX12S | CMeX13S |
Nominal Voltage | 100…240 V AC / ± 10% / (50/60 Hz) | 100…240 V AC / ± 10% / (50/60 Hz) | |||
Power consumption (max.) | <15 W | <3 W | <25 W | ||
Power consumption (nom.) | <5 W | M-Bus loads x 0,07 W + 1.5 W | |||
Installation category | CAT 3 | CAT 2 |
CMe3100 | CMeX10 | ||||
---|---|---|---|---|---|
Ethernet-Specifications | CMe3100 | CMeX10 | CMeX11 | CMeX12S | CMeX13S |
Velocity | Auto 10/100 MBit | not avaiable | |||
Duplex | half/full Duplex | not avaiable | |||
Configuration | Web-Browser | not avaiable |
CMe3100 | CMeX10 | ||||
---|---|---|---|---|---|
M-Bus-Specifications | CMe3100 | CMeX10 | CMeX11 | CMeX12S | CMeX13S |
M-Bus standard | EN 13757 | EN 13757 | |||
M-Bus baud rate | 300, 2400 Bit/s | 300, 2400 Bit/s | |||
Maximum connected M-Bus loads (each 1.5 mA) | 32 (modularly expandable up to 1056) | 32 | 64 | 128 | 256 |
Maximum cable length | 1000 m1) | 1000 m1) | |||
Max load capacitance | 100 nF/km, max. 90 ohm | 100 nF/km, max. 90 ohm | |||
Bus voltage (nom.) | 28 V DC | 28 V DC | 42 V DC | ||
IR interface for extension modules | Yes | Yes | |||
Extension possibilities (Additional M-Bus loads) | 32, 64, 128, 256 | Yes Maximum of 5 CMe modules side by side |
CMe3100 | CMeX10 | ||||
---|---|---|---|---|---|
Ambient conditions | CMe3100 | CMeX10 | CMeX11 | CMeX12S | CMeX13S |
Temperatur Betrieb | -25 bis +55 °C | -30 bis +55 °C | |||
Temperatur Lagerung | -40 bis +85 °C | -40 bis +85 °C | |||
Luftfeuchtigkeit | 5% - 90% (nicht kondensierend) | 5% - 90% (nicht kondensierend) | |||
Montageort | Indoor (optional mit IP67 Gehäuse für Outdoor) | Indoor (optional mit IP67 Gehäuse für Outdoor) |
CMe3100 | CMeX10 | ||||
---|---|---|---|---|---|
Approvals | CMe3100 | CMeX10 | CMeX11 | CMeX12S | CMeX13S |
EMC | EN 61000-6-2, EN 61000-6-3, FCC 47 CFR | ||||
Safety | EN 62368-1 2018, UL 62368-1:2014 Ed.2], CSA C22.2 62368-1:2014 Ed.2] |
1) The maximum possible network reach (entire cable length) as well as the distance to the M-Bus end devices depends greatly on the network topology, the number of connected devices, the cross-section of the used cables and the transfer rate.