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Meter Connectivity Modules

Elvaco offers meter connectivity modules for heat and electricity meters. These are used with a specific type of meter to collect data and deliver in structured meter data reports to a receiving system, or to enable a meter to communicate by M-Bus/Wireless M-Bus.

 

CMeX20w - External MCM for ABB B21/B23/B24

CMeX20w is an external meter connectivity module used to collect data from an ABB B21/B23/B24 electricity meter and deliver it to a receiving system by Wireless M-Bus. The product communicates with the ABB meter by IR and will initiate collection of data immediately after start-up. It has a modular design, which makes it easy to extend an existing installation if needs are changing.

Mechanics

Casing material:
ABS UL94-V0, white
Protection class:
IP20
Dimensions (w x h x d):
35 x 95 x 65 mm (2 DIN modules)
Mounting:
Mounted on DIN rail (DIN 50022) 35 mm
Weight:
100 g

Electrical connections

Supply voltage:
Screw terminal. Cable 0.25-1.5 mm², 0.5 Nm tightening torque

Electrical characteristics

Nominal voltage:
220-240 VAC (+/-10%)
Frequency:
50 Hz
Power consumption (max):
<2.5 W
Power consumption (nom):
<1 W
Installation category:
CAT 3

Environmental specifications

Operating temperature:
-20 °C to +55 °C
Operating humidity:
5 % to 90 %, non-condensing
Operating altitude:
0-2000 m
Pollution degree:
Degree 2
Usage environment:
Indoors, can be extended with IP67 enclosure for outdoor use
Storage temperature:
-40 °C to +85 °C

Temperature sensor, margin of error

Humidity sensor, margin of error

User interface

Green LED:
Power
Red LED:
Error
Orange LED:
Encrypted mode
Push button:
Configuration/activation

M-Bus

Interfaces:
IR, M-Bus slave
M-Bus standard:
EN 13757-4. Communication by T1

Wireless M-Bus

Integrated M-Bus Master

Wireless M-Bus Receiver

M-Bus slave interface

Frequency, Wireless M-Bus:
868.95 MHz
Addressing modes:
Electricity meter's secondary address
M-Bus information:
All fields in the first telegram of the electricity meter
Transmit power:
25 mW
Transmit interval:
16 seconds
Encryption:
Unencrypted (default) or encrypted

General

Data storage (examples)

Mobile Network

Fixed Network (Ethernet)

Integration

Meter implementation:
ABB meters with IR interface
Number of connected meters:
1

Approvals

EMC:
EN 61000-6-2, EN 61000-6-3
Safety:
IEC 60950-1, CAT 3

Connections and Interfaces

Transmissions

For downloads, please visit our support site at: https://support.elvaco.com

Our website has gathered all resources you need to update, tune and troubleshoot your installations, such as:

  • Latest software versions
  • FAQs
  • Guides
  • In-depth technical information
  • Support forum

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