elvaco CMeX10S-13S DIN-Mounted M-Bus Master Instructions

elvaco CMeX10S-13S DIN-Mounted M-Bus Master

Product Information

• Product Name: CMeX10S-13S
• Description: DIN-mounted M-Bus master for 32-256 M-Bus unit loads

Product Usage Instructions

Mounting
The product should be mounted on a DIN-rail. To mount and demount the unit from the DIN-rail, use the DIN-lock located at the bottom of the product. For safety compliance, ensure that a DIN-rail enclosure covers the terminals and use a disconnector switch on the power supply.

M-Bus 2-Wire Bus
The product uses an M-Bus 2-wire bus system. Use a cable with an area of 0.25-1.5 mm2, such as a standard telephone cable (EKKX 2x2x0.5). Connect the wiring to either the connectors (1, 2) or the push wire connector (6). Ensure that the cable length does not exceed 5000 m.

IR Interface
The IR interface can be used alongside an ABB electricity meter or another CMeX module. To use the IR interface, remove the IR shield (5) and mount the CMeX10S-13S on the left side of the meter or CMeX module, leaving no space between the products. Do not remove the shield unless the IR interface is being used.

RS232 Interface
The RS232 interface allows you to use the CMeX10S-13S as an M-Bus master from an RS232 to M-Bus 2-wire interface.

Power Supply
The product requires a power supply. The green Power LED (PWR LED) indicates whether the mains power is connected or not. A permanently on PWR LED indicates that the mains power is connected, while a permanently off PWR LED indicates that there is no mains power connected.

LED Indications
The product has three LED indicators:

• Red Error LED (ERR LED): Indicates the M-Bus 2-wire bus status. A permanently on ERR LED indicates a short circuit of the M-Bus 2-wire bus, while a permanently off ERR LED indicates normal mode (idle). A short flash every second indicates no M-Bus unit loads connected, and flashing for 1 second indicates M-Bus unit load collision.
• Yellow RX LED: Indicates communication from M-Bus unit loads to DTE (Data Terminal Equipment). An on/flashing RX LED indicates that an M-Bus unit load is transmitting data, while an off RX LED indicates that an M-Bus unit load is not transmitting data.
• Yellow TX LED: Indicates communication from DTE to M-Bus unit loads. An on/flashing TX LED indicates that the DTE is transmitting data, while an off TX LED indicates that the DTE is not transmitting data.

Troubleshooting
If you encounter any issues with the product, follow these steps:

1. Ensure that the product is switched off before demounting the covers to the screw terminals.
2. If all LEDs are permanently off, there may be a problem with the supply voltage. Verify that the voltage is within the range of 100-240 VAC. If the problem persists, the product may be malfunctioning.
3. If the red LED is permanently on, it indicates an error on the M-Bus 2-wire bus. Verify that there is no short circuit on the bus and that the voltage of the bus is between 21-42 VDC.
4. If you cannot read connected M-Bus unit loads, verify the M-Bus status.
5. If the TX LED is permanently on when the CMeX10S-13S is stacked with other CMeX Series modules, check for a short circuit on a product mounted on the left side of the issued product.

Note: For more detailed information or information in Swedish, visit the Elvaco AB website at www.elvaco.com.

Simplified Declaration of Conformity:
[Declaration of conformity information]

INTRODUCTION

The CMeX10S/11S/12S/13S is an M-Bus master for up to 256 M-Bus unit loads. For a complete description of the product or for information in Swedish, visit the Elvaco AB website, www.elvaco.com.

OVERVIEW

1. M-Bus out
2. M-Bus out
3. RS232 in
4. DIN-rail lock
5. IR interface
6. M-Bus out
7. Protective earth
8. Power supply N
9. Power supply L
10. Power LED (green)
11. Error LED (red)
12. Serial number
13. RX LED (yellow)
14. TX LED (yellow)

MOUNTING

The product should be mounted on a DIN-rail. The DIN-lock (4) 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 and a disconnector switch on power supply must be used.

M-BUS 2-WIRE BUS
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 (1, 2) or the push wire connector (6). Do not exceed the maximum cable length of 5000 m.

IMPORTANT

• CMeX10S/11S/12S/13S handles from 32 up to 256 unit loads. Be sure to use the correct model in your application. Overloading the bus will turn on the ERR LED and turn off the M-Bus bus.
• All connected M-Bus unit loads must have unique primary or secondary M-Bus addresses depending on addressing mode.

IR INTERFACE
The IR interface can be used beside an ABB electricity meter or another CMeX module. Remove the IR shield (5) and mount the CMeX10S/11S/12S/13S on the left side of the meter or CMeX module and leave no space between the products. Do not remove the shield unless the IR interface is used.

RS232 INTERFACE
Use the RS232 interface to use the CMeX10S/11S/12S/13S as an M-Bus master from RS232 to M-Bus 2-wire interface.

POWER SUPPLY
The installation should be performed by a qualified electrician or an installer with the required knowledge. If the product is mounted in an overvoltage category 3 (OVC III) environment, an external transient protection must be installed before the CMeX10S-13S. The power supply should be connected via a switch so the unit can be switched off during service work. The main supply should be connected to screw terminal (8) and screw terminal (9). Main supply voltage should be in the range of  100-240 VAC, 50/60 Hz, fused with 10A. Connect ground to screw terminal (7).

LED INDICATIONS

Green PWR LED
PWR LED indicates mains supply.

Red ERR LED
ERR LED indicates M-Bus 2-wire bus status.

Yellow RX LED
RX LED indicates communication from M-Bus unit loads to DTE.

Yellow TX LED
TX LED indicates communication from DTE to M-Bus unit loads.

TROUBLESHOOTING

Make sure that the product is switched off 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 certificate 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.

TECHNICAL SPECIFICATIONS

Mechanics

CONTACT
Technical support
E-mail: support@elvaco.com
Online: www.elvaco.com

© 2022, Elvaco AB. All rights reserved. The documentation and product are provided on an “as is” basis only and may contain deficiencies 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

References

• We see value in every measuring | Elvaco

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