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Elvaco M-Bus Splitter Quick Manual

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INTRODUCTION
The M-Bus Splitter allows two parties to have access to the same main
meter. Two M-Bus masters can be connected to the meter and register
readings individually.This manual provides the information needed to
get started with the M-Bus Splitter. For a complete description of the
product or for information in Swedish, visit the Elvaco AB website,
www.elvaco.com.
OVERVIEW
M-Bus Splitter
Share up to 4 M-Bus slaves
1. Screw terminal M-Bus OUT1 - Isolated
2. LED M-Bus OUT1 - Isolated
3. LED M-Bus IN
4. Screw terminal M-Bus IN
5. Configuration jumpers
6. Screw terminal external power (optional)
7. LED M-Bus OUT2 - Power
8. Screw terminal M-Bus OUT2 - Power
MOUNTING
M-Bus Splitter can be mounted on a DIN-rail or directly on the wall. For
wall mounting, the black mounting bracket on the back of the M-Bus
Splitter has to be demounted from the unit and mounted on the wall.
The M-Bus Splitter will then be snapped on to the black mounting
bracket.
1. 24 V power supply should be connected when more than one
meter is connected or if the Splitter does not manage to operate
the connected meter. It is important that the power supply is only
used to power the M-Bus Splitter (and not additional devices).
2. Connect meter on the terminal marked with M-Bus IN. The meters
must have unique primary addresses between 1 and 250.
3. Connect M-Bus master on the terminals marked with M-Bus OUT2
and OUT1. M-Bus OUT2 must be connected as it provides power
to the Splitter.
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).
OPERATION
When the Splitter is powered up it takes up to 5 minutes before it is
ready to use since it needs charging. During charging, all LEDs will flash
four short flashes in order every three seconds.
1. There are four settings to be done to adapt the Splitter to the
installation. This is done by setting the jumpers in on or off mode.
See Settings for more information.
2. Start the meter installation by changing the position of any jumper
(off to on/on to off). Put the jumper back to its original position.
See settings.
3. During scanning, the LED for M-Bus IN flashes with a short flash
every second. Depending on the scanning speed the scanning
time varies from 1 to 8 minutes.
4. When the scanning is completed, the M-Bus Splitter is in normal
operation. See LED indications.
TROUBLESHOOTING
Make sure that:
1. All cables are connected properly, both on the M-Bus Splitter and
on the M-Bus master.
2. The voltage on M-Bus IN is greater than 23 VDC. If the voltage is
lower, disconnect one meter at a time to find the failing meter.
3. The voltage on M-Bus OUT2 is greater than 26 VDC. If the voltage
is not within this range, check the function of the M-Bus master.
Connect external 24 VAC power supply when connecting more
than one meter. When low voltage is detected on M-Bus IN, all
LEDs flashes four times.
4. The connected M-Bus meters all have unique primary addresses.
5. Contact the supplier if the error remains.
SETTINGS
© 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.
M-Bus Splitter Quick manual A4 English
Document id: 1090049
Version: 4.0
2 flashes every 12
seconds
Communication took place last
minute
TECHNICAL SPECIFICATIONS
Mechanics
Material Polycarbonate
Dimensions 75x55x110 mm
Weight 100 g
Mounting DIN-rail or wall mounting
Connections and interface
Connection M-Bus screw terminal
M-Bus 2-wire interface - master port
Nominal voltage 23-27 VDC
M-Bus baud rate 300, 2400 Bit/s
Max. connected meters 4*
Scanning range 0-250 (multiple slave), 254 (single slave)
Scanning interval 1 min, 5 min, 30 min or 60 min
Standards EN 13757
*When using more than one meter, an external power supply needs to be used.
M-Bus 2-wire interface - slave ports
Nominal voltage 21-42 VDC (M-Bus standard)
Power consumption 2T-6T (3-9 mA)
M-Bus baud rate 300, 2400 Bit/s
Standards EN 13757
M-Bus commands SND_NKE, REQ_UD2
External power
Nominal voltage 24-35 VAC or 30-40 VDC
Power consumption 25 mA
User interface
Operation indication See LED indications
Other
Product Part number Description
M-Bus Splitter 1050 013 Share up to 4 M-Bus slaves
ORDERING INFORMATION
CONTACT TECHNICAL SUPPORT
Phone: +46 300 434300
E-mail: support @elvaco.com
Online: www.elvaco.com
Speed M-Bus OUT1
Jumper 1, yellow
Mode Description Visual
Jumper on 2400 baud
Jumper off 300 baud
Scanning speed M-Bus IN
Jumper 2, blue
Mode Description Visual
Jumper on 2400 baud
Jumper off 300, 2400 baud
Readout interval M-Bus IN
Jumper 3 and 4, black
Mode Description Visual
Jumper off
Jumper off
1 minute
Jumper off
Jumper on
5 minutes
Jumper on
Jumper off
30 minutes
Jumper on
Jumper on
12 hours
Speed M-Bus OUT2
Jumper 5, red
Mode Description Visual
Jumper on 2400 baud
Jumper off 300 baud
LED INDICATIONS
M-Bus IN
LED indications for M-Bus IN
Mode Description Visual
4 short flashes
every 3 seconds
Start-up/charging
Short flash every
second
Readout
Off No meter installed/error on
the bus
1 flash every 12
seconds
1 installed meter
2 flashes every 12
seconds
2 installed meters
3 flashes every 12
seconds
3 installed meters
4 flashes every 12
seconds
4 installed meters
M-Bus OUT 2
LED indications for M-Bus OUT 2
Mode Description Visual
4 short flashes
every 3 seconds
Start-up/charging
Off Error on the bus
1 flash every 12
seconds
Normal operation
2 flashes every 12
seconds
Communication took place last
minute
M-Bus OUT 1
LED indications for M-Bus OUT 1
Mode Description Visual
4 short flashes
every 3 seconds
Start-up/charging
Off Error on the bus
1 flash every 12
seconds
Normal operation
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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