wMBUS CMeX50 Concentrator

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650,00 €

CMeX50 is a wireless M-Bus master which can be used by any existing wired M-Bus solution. Up to 500 slave wMBUS.

Wireless M-Bus master CMeX50

CMeX50 is a wireless M-Bus master which can be used by any existing wired M-Bus solution. The CMeX50 communicates with wireless M-Bus slaves via the wireless modes S1, S2, T1, T2, C1 and C2, and is compatible with all widely used M-Bus slaves on the market. The CMeX50 handles up to 500 wireless M-Bus slaves, which can be individually secured by encryption keys. It also has a built-in M-Bus master for 32 wired M-Bus slaves.


The CMeX50 can automatically install selected wireless M-Bus slaves. By enabling the CMeX50 Automatic installation mode, all wireless M-Bus slaves within range can be automatically detected and configured for operation. The installed wireless M-Bus slaves can later be edited and configured to use encryption for secure connections.

The CMeX50 can easily be configured by using the intuitive display, or by using standard M-Bus commands on standard 2-wire M-Bus. The display shows current operation, installed wireless slaves, M-Bus operation modes and much more. There is no need for any extra tools to get the CMeX50 up and running.

All installed wireless M-Bus slaves can be readout using standard 2-wire M-Bus commands on the CMeX50 M-Bus slave port. This functionality makes the CMeX50 fully compatible with any existing wired M-Bus solution. The wireless M-Bus slaves can be individually readout using secondary or primary addressing mode with standard readout command REQ_UD2.

The CMeX50 can be remotely configured using standard M-Bus commands. When new M-Bus wireless modes or M-Bus standard updates are available, the firmware can be remotely updated to meet new market demands.



Mechanics Casing material Polyamide
  Protection class IP20
  Dimensions 90 x 65 x 107 mm
  Weight 220 g
  Mounting DIN-enclosure
  Connection M-Bus master Screw terminal cable 0.5-2.5 mm², 0.5 Nm tightening torque
  Connection M-Bus slave Pin terminal solid wire 0.6-0.8 ø mm
  Connection power supply Screw terminal cable 0.5-2.5 mm², 0.5 Nm tightening torque
  Connection antenna SMA-f
  Connection RS232 RJ45 8/8
  Connection USB Mini USB type B
  Connection IR communication CMe-, CMeX Series, ABB electricity
Electrical Nominal Voltage 100-240 VAC
  Voltage range -10 % to +10 % of nominal voltage
  Frequency 50/60 Hz
  Power consumption 6 W
  Installation category CAT 2 (overvoltage category)
Environmental Operating temperature range -30 to +55 °C
  Storage temperature range -40 to +85 °C
  Operating humidity max 80 % RH temperatures up to 31 °C, decreasing linearly to 50 % RH at 40 °C
  Pollution Degree 2
  Operating altitude 0-2000 m
  Usage Indoor use only, can be extended with IP6X enclosure for outdoor use
User interface LCD display Graphic monochrome
  Display resolution 128 x 64 dots
  Keyboard 7 illuminated buttons
Wired M-Bus master M-Bus standard EN 13757
  Maximum connected M-Bus meters 32 T
  Maximum cable length 1000 m
  Break signal length M-Bus 2-wire and right IR interface 45 ms
  Nominal voltage 28 VDC
  Baud rate 300, 2400 baud
Wireless M-Bus master M-Bus standard EN 13757-4
  OMS-compliant Yes
  Wireless M-Bus modes S1 S2 T1 T2 C1 C2
  Radio frequency band 868 MHz
  RF output power 14 dBm
  RF sensitivity -105 dBm
  Maximum slaves 500
  Encryption AES-128
Wired M-Bus slave M-Bus standard EN 13757
  M-Bus voltage 21-42 VDC
  Power consumption 1.5 mA 1T
  M-Bus baud rate 300, 2400 Bit/s
  M-Bus commands SND_UD, SND_NKE, REQ_UD2
  M-Bus address default 251
  Addressing modes Secondary, primary
Approvals Safety EN 61010-1
  Electromagnetic compatibility (EMC) EN 61000-6-2
  Electromagnetic compatibility (EMC) EN 61000-6-3




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