© 2022, Elvaco AB. All rights reserved. The documentation and product are provided on an “as is” basis only and may contain deciencies or in-
adequacies. 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.
CMeX10S-13S Quick manual A4 English
Document id: 1090031
Version: 5.1
M-Bus
M-Bus standard EN 13757
M-Bus baud rate 300, 2400 Bit/s
Maximum connected M-Bus
unit loads
(1T=1.5mA)
CMeX10S: 32T (48mA)
CMeX11S: 64T (96mA)
CMeX12S: 128T (192mA)
CMeX13S: 256T (384mA)
Maximum cable length 5000 m
Maximum load capacitance 1.5 uF
Nominal voltage 42 VDC
IR interface Yes
Pass through Yes. Maximum of 4 CMeX Series products side
by side
Compatibility All M-Bus meters, all ABB meters with IR
interface, CMeX Series products
Approvals
EMC EN 61000-6-2, EN 61000-6-3, FCC 47 CFR
Safety EN 62368-1 2018, UL 62368-1:2014 Ed.2],
CSA C22.2#62368-1:2014 Ed.2]
TECHNICAL SPECIFICATIONS
Yellow TX LED
TX LED indicates communication from DTE to M-Bus unit loads.
Mode Description Visual
On/Flashing DTE is transmitting data
O DTE is not transmitting
data
TROUBLESHOOTING
Make sure that the product is switched o before the covers to the
screw terminals are demounted.
All LEDs are permanently off
There is a problem with the supply voltage. Please verify 100-240 VAC. If
the problem persists, the product may be malfunctioning.
Red LED is permanently on
This indicates an error on the M-Bus 2-wire bus. Please verify no short-
circuit of the bus. The voltage of the bus should be between 21-42 VDC.
Cannot read connected M-Bus unit loads
Please verify M-Bus status:
• Voltage over M-Bus unit load devices should be between 21-42
VDC.
• All M-Bus unitl load devices must have unique secondary or
primary M-Bus addresses depending on addressing mode.
• M-Bus unit load device baud rates.
TX LED is permanently on
When CMeX10S/11S/12S/13S is stacked with other CMeX Series
modules and there is a short circuit on a product which is mounted on
the left side of the issued product, the TX LED may be permanently on.
Verify left side mounted products for no short circuit.
SIMPLIFIED DECLARATION OF CONFORMITY
Hereby, Elvaco declares that the products are in compliance with the
following directives:
EU:
- 2014/30/EU (EMC)
- 2014/35/EU (LVD)
- 2011/65/EU + 2015/863 (RoHS)
UK:
- 2016 No. 1091
- 2016 No. 1101
- 2012 No. 3032
North America:
- FCC 47 CFR Part 15 Subpart B
- ICES-001 Issue 4
- CB certicate No. SE-103859
- ETL No:5017602
The complete Declaration of Conformity can be found at www.elvaco.
se/en > Search on product.
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.
CONTACT
Technical support
E-mail: support @elvaco.com
Online: www.elvaco.com
Mechanics
Protection class IP20
Dimensions 90x65x108 mm
Weight 220 g
Connection M-Bus Pin terminal solid wire 0.6-0.8 Ø mm and screw
terminal cable 0.25-2.5 mm², 0.5 Nm tightening
torque
Mounting DIN mounted
Power supply Screw terminal cable 0.75-2.5 mm², 0.5 Nm
tightening torque
Electrical
Nominal voltage 100-240 VAC
Voltage range -10 % to +10 % of nominal voltage
Frequency 50/60 Hz
Power consumption (max) 25 W
Power consumption (nom) 0.07 W x M-Bus unit loads + 1.5 W
Overvoltage category CAT 2
Environmental
Operating temperature range -30 °C to +55 °C
Storage temperature range -40 °C to +85 °C
Pollution Degree 2
Operating altitude 0-2000 m
