Elvaco CMeX 50 Installation guide
INTRODUCTION
The CMeX50 is a wireless M-Bus Receiver handling up to 800 wireless
M-Bus meters and up to 32 wired M-Bus meters. The product can
operate in all commonly used wireless M-Bus modes: T1, C1 and S1.
For a complete description of the product or for information in Swedish,
visit the Elvaco AB website, www.elvaco.com.
OVERVIEW
CMeX 50
Wireless M-Bus Receiver
1. Serial number
2. Display
3. M-Bus master
4. Antenna connector
5. RS232 connector
6. DIN-rail lock
7. USB connector
INCLUDED ACCESSORIES
The CMeX50 is delivered with a magnetic base antenna, an USB cable
and a RS232 cable.
MOUNTING
The product should be mounted on a DIN-rail. The DIN-lock (6) on the
bottom is used to mount and demount the unit from the DIN-rail. To
fully comply with safety regulations, a DIN-rail enclosure must cover the
terminals.
POWER SUPPLY
The installation should be performed by a qualified electrician or an
installer with the required knowledge. The power supply should be
connected via a clearly marked, easily accessible and close switch
so the unit can be switched off during service work. The main supply
should be connected to screw terminal (9) and screw terminal (10).
Main supply voltage should be in the range of 100-240 VAC, 50/60 Hz.
Connect protective earthing to screw terminal (11).
M-BUS MASTER
The CMeX50 will store the connected wireless M-Bus meters and
they will be readable using standard M-Bus commands. Except from
handling wireless M-Bus slaves, the CMeX50 has an integrated M-Bus
Master which can drive up to 32 wired meters. M-Bus is a multi-drop
2-wire bus with no polarity. Use a cable of area 0.25-1.5 mm2, e.g. a
standard telephone cable (EKKX 2x2x0.5). Connect the wiring to the
connector (3). Do not exceed the maximum cable length of 1000 m.
IMPORTANT
The product handles up to 32 meters. Overloading the bus will show an
error message on the display and turn off the M-Bus bus.
All connected M-Bus slave devices must have unique primary or
secondary M-Bus addresses depending on addressing mode.
ANTENNA
Mount the antenna in a suitable place. Connect the cable to the SMA
connector (4). If the included antenna’s range is inadequate, please
contact Elvaco for more information about antenna options.
IMPORTANT
• CMeX50 should be connected to the antenna when the antenna
wiring is done. Otherwise the SMA connector can be damaged.
• Do not mount the antenna close to any metallic objects.
• Do not mount the antenna close to the M-Bus 2-wire bus.
• Do not mount the antenna inside a metallic cabinet.
M-BUS SLAVE PORTS
The product is equipped with four different M-Bus slave ports (IR
interface left, RS232 (5), USB (7) and M-Bus slave interface (8)) to
enable wide integration. These ports can be used to:
• Read the connected wireless M-Bus slaves as normal M-Bus
slaves
• Read the connected wired M-Bus slaves (transparent)
Slaves can be read using primary and/or secondary addressing. The
CMeX50 itself is available as an M-Bus slave with the secondary
address equal to the serial number.
RS232 interface
The RS232 interface is used as a standard transparent M-Bus interface
over RS232. Use the included RS232 cable (RJ45 to D-SUB9) and
connect to any standard RS232 D-SUB9 connector.
8. M-Bus slave
9. Power supply L
10. Power supply N
11. Protective earthing
12. Keypad
13. IR interface right
© 2016, Elvaco AB. All rights reserved. The documentation and product are provided on an “as is” basis only and may contain deficiencies or
inadequacies. Elvaco AB takes no responsibility for damages, liabilities or other losses by using this product. No part of the contents of this
manual may be transmitted or reproduced in any form by any means without the written permission of Elvaco AB. Printed in Sweden.
CMeX50 Quick manual A4 English
Document id: 1090051
Version: 4.0
Mechanics
Protection class IP20
Mounting Mounted on DIN rail (DIN 50022) 35 mm
Electrical connections
Power supply Screw terminal 0.5-2.5 mm²
M-Bus master port Screw terminal 0.5-2.5 mm²
M-Bus slave port Pin terminal solid wire 0.6-0.8 Ø mm
Antenna SMA-f
RS232 RJ45 8/8
USB-port Mini USB type B
Electrical characteristics
Nominal voltage 100-240 VAC (+/- 10%)
Frequency 50/60 Hz
Power consumption <6 W
Installation category CAT 2
Integrated M-Bus Master
M-Bus baud rate 300 and 2400 bit/s
Maximum unit loads 32T/48 mA (can be extended with the
CMex10-13S Series)
Maximum cable length 1000 m (100 nF/km, maximum 90 Ω)
M-Bus slave interface
M-Bus baud rate 300 and 2400 bit/s
Power consumption 1T/1.5 mA
Approvals
EMC EN 61000-6-2, EN 61000-6-3
Safety EN 61010-1, CAT 2
Product Part number Description
CMeX50 1050062 Wireless M-Bus master
Antenna 9950472 Omni 868 MHz 6 dB
Antenna cable 9950453 SMA-f N-m 5 m
Antenna cable 9950454 SMA-f N-m 10 m
ORDERING INFORMATION
CONTACT TECHNICAL SUPPORT
Phone: +46 300 434300
E-mail: support @elvaco.com
Online: www.elvaco.com
TECHNICAL SPECIFICATIONS
USB interface
The USB interface is used as a standard transparent M-Bus interface
over USB. Use the included USB cable and connect to any standard
USB master port. When using Microsoft Windows® operating systems,
a virtual comport will automatically be generated when connecting the
product to the computer. Additional USB drivers can be downloaded
from the Elvaco web site: www.elvaco.com.
M-Bus 2-wire interface
The M-Bus 2-wire interface acts like any other M-Bus slave device on
the 2-wire bus. The nominal current is 1T (1.5 mA). This interface can be
directly used with any standard M-Bus master.
IR interface
The IR interface is used as a standard transparent M-Bus interface over
IR. This port can be used together with M-Bus master products from
Elvaco, i.e. CMe2100 and CMe3000. In this way it is possible to extend
the product with TCP/IP and GPRS communication.
GETTING STARTED
1. Power up the module and press OK to enter password.
2. Press OK for default password 0000.
3. Press OK for 1. Installation.
4. Move down with cursors to 2. Installation, clear and press OK.
Press OK for confirmation.
5. The CMeX50 will listen for transmitting wireless M-Bus slaves and
add them to meter list.
6. The installation will automatically stop after 60 minutes. It can also
be stopped manually by pressing ESC and OK when the expected
number of meters are found.
7. Press ESC and press OK for saving the meter list in CMeX50
and quit installation. Press OK to enter main menu. All wireless
meters are now available as wired meters on any of the interfaces
described above.
TROUBLESHOOTING
When running installation, no wireless meters are found
Please verify:
• CMeX50 antenna installation and position.
• Wireless M-Bus slave mode must be the same as configured
CMeX50 wireless M-Bus mode.
CMeX50 does not respond to M-Bus master commands
Please verify M-Bus status:
• Voltage over M-Bus slave device should be between 21-42 VDC.
• All M-Bus slave devices must have unique secondary or primary
M-Bus addresses depending on addressing mode.
• Verify M-Bus slave baud rate used by M-Bus master. M-Bus
master baud rate must be identical to the CMeX50 baud rate.
• Encrypted wireless M-Bus slaves without uploaded keys will send
meter data in container mode. Add keys to corresponding meter
using the LCD display or M-Bus commands.
SAFETY
The warranty does not cover damage to the product caused by usage
in any other way than described in this manual. Elvaco AB can not be
liable for personal injury or property damage caused by usage in any
other way than described in this manual.
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