M-Bus Gateway TCP/IP
CMe3000
Product categories
Water,
Heat / Cooling,
Electricity
M-Bus TCP/IP Master
Water
Drinking Water
Heat / Cooling
Electricity
Wired
M-Bus,
Ethernet
Instruments
Smart Building
Your benefits
- Transparent mode of operation:
Unchanged transfer of read-out data to the communication device - TCP/IP interface for communication with readout infrastructure:
Ease of installation, especially when M-Bus measuring instruments are distributed over several floors or buildings - IR interface for modular extension:
No need to replace the M-Bus TCP/IP Master when connecting additional measuring points, investment protection - 100-240 V AC mains power required:
No extra power supply necessary - Operating status display via LED:
Easy on-site analysis and troubleshooting
Applications
- Remote supply and remote reading of M-Bus end devices over Ethernet

Properties
- Signal converter from M-Bus to TCP/IP
- DIN mounted, modular and expandable - future proof solution
- Several extension modules (additional M-Bus loads) which are mounted to the right (IR interface) of the module are available
- Intelligent Watchdog functionality to enable stable operation during a long time
- Supports static IP addressing as well as dynamic IP addressing (DHCP)
- Internal HTTP web server for configuration with any web browser – no additional software required
- Readout via virtual COM ports - existing PC software can be used
- M-Bus protocol according to EN 13757-3
- Transfer rates M-Bus: 300, 2400 Bit/s
- M-Bus short-circuit protection
- 100-240 V AC power supply
- Operating indicator with LED
Product information

Technical Data
M-Bus TCP/IP MASTER | Extension modules for CMe3000 | ||||
---|---|---|---|---|---|
CMe3000 | CMeX10 | CMeX11 | CMeX12S | CMeX13S | |
Mechanics | |||||
Dimensions (HxWxD) | 90x36x65mm (2 DIN-Modules) | 90x36x65mm (2 DIN-Modules) | 90x108x65mm (6 DIN-Modules) | ||
Weight | app. 100g | app. 100g | app. 220g | ||
Installation | Hat rail TS35 (EN 50022) /DIN mounted | Hat rail TS35 (EN 50022) / DIN mounted | Hat rail TS35 (EN 50022) / DIN mounted | ||
Casing material | Polyamid | Polyamid | Polyamid | ||
Protection class | IP20 | IP20 | IP20 | ||
Terminals | |||||
Power supply | L, N Screw terminal cable 0,75 - 2,5 mm2 0,5 Nm tightening torque | L, N Screw terminal cable 0,75 - 2,5 mm2 0,5 Nm tightening torque | L, N, earth Screw terminal cable 0,75 - 2,5 mm2 0,5 Nm tightening torque | ||
M-Bus | Pin terminal solid wire Ø 0,6 - 0,8 mm | 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 | RJ-45 | Not available | Not available | ||
RS232 | Not available | Not available | RJ-45 |
CMe3000 | CMeX10 | CMeX11 | CMeX12S | CMeX13S | |
---|---|---|---|---|---|
Electrical | |||||
Nominal Voltage | 100…240VAC / ± 10% / (50/60Hz | 100…240VAC / ± 10% / (50/60Hz) | 100…240VAC / ± 10% / (50/60Hz) | ||
Power consumption (max.) | 2,5 W | 3 W | 25 W | ||
Power consumption (nom.) | 1 W | 1,5 mA x M-Bus-Loads + 1 W | 1,5 mA x M-Bus-Loads + 1 W | ||
Installation category | CAT 3 | CAT 3 | CAT 3 | ||
Ethernet specifications | |||||
Speed | Auto 10/100 MBit | Not available | Not available | ||
Duplex | Half/Full duplex | ||||
Configuration | Via internal HTTP web server with any web browser | ||||
Readout | Virtual COM port or IP address | ||||
M-Bus specifications | |||||
M-Bus standard | EN 13757 | EN 13757 | EN 13757 | ||
M-Bus baud rate | 300, 2400 Bit/s | 300, 2400 Bit/s | 300, 2400 Bit/s | ||
Maximum connected M-BusLoads (each 1.5 mA) | 8 | 32 | 64 | 128 | 256 |
Maximum cable length | 1000 m1) | 1000 m1) | 1000 m1) | ||
Maximum load capacitance | 1.5 μF | 1.5 μF | 1.5 μF | ||
Bus voltage (nom.) | 28 V DC | 28 V DC | 42 V DC | ||
IR Interface for extension modules | Yes | Yes | Yes | ||
Extension possibilities (Additional M-Bus Loads) | Yes. Maximum of 4 CMe-modules side by side | Yes Maximum of 4 CMe-modules side by side | Yes Maximum of 4 CMe-modules side by side |
Ambient conditions | ||
---|---|---|
Operating temperature range | -20 to +55 °C | -30 to +55 °C |
Storage temperature range | -40 to +85 °C | -40 to +85 °C |
Humidity | 80% at temperatures up to 31 °C, decreasing linearly to 50% at 40 °C | 80% at temperatures up to 31 °C, decreasing linearly to 50% at 40 °C |
Pollution Degree | 2 | 2 |
Approvals | ||
---|---|---|
EMC | EN 61000-6-2, EN 61000-6-3 | EN 61000-6-2, EN 61000-6-3 |
Safety | EN 61010-1, CAT 3 | EN 61010-1, CAT 3 |
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.