Follow the warnings described in this manual with the symbols shown below.
DANGER
Warns of a risk, which could result in personal injury or material damage.
ATTENTION
Indicates that special attention should be paid to a speci c point.
If you must handle the unit for its installation, start-up or maintenance, the following
should be taken into consideration:
Incorrect handling or installation of the unit may result in injury to personnel as well as damage
to the unit. In particular, handling with voltages applied may result in electric shock, which may
cause death or serious injury to personnel. Defective installation or maintenance may also
lead to the risk of re.
Read the manual carefully prior to connecting the unit. Follow all installation and maintenance
instructions throughout the unit’s working life. Pay special attention to the installation standards of the National Electrical Code.
Refer to the instruction manual before using the unit
In this manual, if the instructions marked with this symbol are not respected or carried out correctly, it can
result in injury or damage to the unit and /or installations.
CIRCUTOR, SA reserves the right to modify features or the product manual without prior noti cation.
DISCLAIMER
CIRCUTOR, SA reserves the right to make modi cations to the device or the unit speci ca-
tions set out in this instruction manual without prior notice.
CIRCUTOR, SA on its web site, supplies its customers with the latest versions of the device
speci cations and the most updated manuals.
5�1�- LED INDICATORS ������������������������������������������������������������������������������������������������������������������������������������ 12
5�2�1� INSTALLATION OF THE CMBUS SOFTWARE �������������������������������������������������������������������������������� 12
5�2�2�- ADDING M-BUS UNITS FROM THE DATABASE ���������������������������������������������������������������������������� 15
5�2�3� ADDING M-BUS UNITS THROUGH AUTO-DETECTION�����������������������������������������������������������������16
5�2�4� CMBUS START-UP ���������������������������������������������������������������������������������������������������������������������������18
6�- TECHNICAL FEATURES ��������������������������������������������������������������������������������������������������������������������������������20
7�- MAINTENANCE AND TECHNICAL SERVICE ������������������������������������������������������������������������������������������������22
8�- WARRANTY �����������������������������������������������������������������������������������������������������������������������������������������������������22
9�- CE CERTIFICATE �������������������������������������������������������������������������������������������������������������������������������������������� 23
4
Instruction Manual
CMBUS
REVISION LOG
Table 1: Revision log�
DateRevisionDescription
09/14M98252701-03-14AInitial Version
Note: The images of the units are for illustrative purposes only and may differ from the original
unit.
Instruction Manual
5
1�- VERIFICATION UPON RECEPTION
Check the following points when you receive the unit:
a) The unit meets the specications described in your order.
b) The unit has not suffered any damage during transport.
c) Perform an external visual inspection of the unit prior to switching it on.
d) Check that it has been delivered with the following:
- An installation guide.
If any problem is noticed upon reception, immediately contact the transport
company and/or CIRCUTOR's after-sales service.
2�- PRODUCT DESCRIPTION
CMBUS
CMBUS protocol transducers enable devices with RS-485 Modbus Master communications to
communicate with different M-BUS slave units.
There are two unit models:
The CMBUS-8 model can communicate with 8 slave units (100 parameters). The CMBUS-24 model can communicate with 24 slave units (500 parameters).
Terminals
MiniDips
LEDs
Terminals
Figure 1: Description of the CMBUS
The unit features:
4 MiniDips for conguration, 3 LEDs that indicate the converter status and the M-BUS and Modbus trafc, An RS-232 connection for the initial conguration of the unit.
M-BUS slave units are integrated into the transducer using programming software.
6
Instruction Manual
CMBUS
3�- UNIT INSTALLATION
3.1.- PRELIMINARY RECOMMENDATIONS
In order to use the unit safely, it is critical that individuals who handle it follow
the safety measures set out in the standards of the country where it is being
used, use the personal protective equipment necessary, and pay attention to the
various warnings indicated in this instruction manual.
The CMBUS unit must be installed by authorised and qualied staff.
The power supply plug must be disconnected and measuring systems switched off before
handling, altering the connections or replacing the unit. It is dangerous to handle the unit while
it is powered.
Also, it is critical to keep the cables in perfect condition to avoid accidents, personal injury and
damage to installations.
The manufacturer of the unit is not responsible for any damages resulting from failure by the
user or installer to heed the warnings and/or recommendations set out in this manual, nor for
damages resulting from the use of products or accessories that did not come with the unit or
that were made by other manufacturers.
Disconnect the unit from the power supply (unit and measuring system power
supply) before maintaining, repairing or handling the unit's connections.
Please contact the after-sales service if you suspect that there is an operational
fault in the unit.
3.2.- INSTALLATION
Do not use the unit until it is fully installed.
The unit is installed on a 35 mm DIN rail (EN 50022).
To install the unit on a DIN rail (Figure 2) :
1�- Hook the rear clip of the unit to the top of the DIN rail.
2�- Pull the clip downwards.3�- Push the unit into place on the DIN rail and release the clip.
Instruction Manual
7
Figure 2: Installing the CMBUS on a DIN rail
To uninstall from the DIN rail (Figure 3):
1�- Pull the clip downwards.
2�- Pull the unit to release the bottom edge of the DIN rail.3�- Pull the unit up to release the upper clip from the DIN rail.
CMBUS
Figure 3: Uninstalling the CMBUS from a DIN rail
8
Instruction Manual
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