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CMeX20

1050010

Accessories

This segment is made up of accessories, for example antennas, enclosures and M-Bus accessories, which are used to adapt or enhance our products.

CMeX20 - External MCM for ABB B21/B23/B24

CMeX20 is an external meter connectivity module used to collect meter data from an ABB B21/B23/B24 electricity meter and deliver it to a receiving system by M-Bus. The MCM communicates with the ABB meter through IR and will initiate collection of data immediately after start-up. CMeX20 has a modular design, which makes it easy to extend an existing installation if needs are changing.

Mechanics

Casing material:
Polyamide
Dimensions (w x h x d):
35 x 90 x 65 mm (2 DIN modules)
Protection class:
IP20
Weight:
100 g
Mounting:
Mounted on DIN rail (DIN 50022) 35 mm

Electrical connections

Supply voltage:
From M-Bus
M-Bus slave port:
Screw terminal. Cable 0.25-1.5 mm², 0.5 Nm tightening torque

Electrical characteristics

Nominal voltage:
21-42 VDC through M-Bus connection, independent of wiring polarity
Unit loads:
2T/3 mA

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

Orange LED:
Power/M-Bus activity

M-Bus

Interfaces:
IR, M-Bus slave
M-Bus standard:
EN 13757

Wireless M-Bus

Integrated M-Bus Master

Wireless M-Bus Receiver

M-Bus slave interface

M-Bus baud rate, slave port:
300 and 2400 bit/s
Nominal voltage, slave port:
21-42 VDC
Addressing modes:
Electricity meter's secondary address
M-Bus information:
All fields in the first telegram of the electricity meter

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

Connections and Interfaces

Transmissions

We see value in every measurement.

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