Linecoupler CL
KNX-TP Line Coupler & Repeater
ZSYLCCL
USER MANUAL
Application Program version: [1.0]
User Manual version: [1.0]_a
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Linecoupler CL
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CONTENTS
Contents ........................................................................................................................................ 2
1 Introduction .......................................................................................................................... 3
1.1 Linecoupler CL ............................................................................................................... 3
1.2 Installation ..................................................................................................................... 5
2 Configuration......................................................................................................................... 6
2.1 General Configuration ................................................................................................... 6
2.1.1 Linecoupler CL as a Line Coupler ....................................................................... 6
2.1.2 Linecoupler CL as a Repeater .......................................................................... 10
2.2 Manual Function Button ............................................................................................. 11
2.2.1 Manual Operation Mode ................................................................................. 11
2.2.2 Hard Reset to Factory Defaults ....................................................................... 12
3 ETS Parameterisation (Linecoupler) .................................................................................... 13
3.1 Default Parameterisation ............................................................................................ 13
3.2 General ........................................................................................................................ 14
3.3 Main Line ..................................................................................................................... 15
3.4 Line .............................................................................................................................. 17
4 ETS Parameterisation (Linerepeater) .................................................................................. 18
4.1 Default Parameterisation ............................................................................................ 18
4.2 General ........................................................................................................................ 19
4.3 Main Line ..................................................................................................................... 19
4.4 Line .............................................................................................................................. 21
Linecoupler CL
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1 INTRODUCTION
1.1 LINECOUPLER CL
Linecoupler CL is the KNX line-coupling and line-repeating solution from Zennio.
This device is intended to couple two KNX twisted-pair lines together. Its flexibility
makes it possible to connect a KNX line to a KNX mainline or a KNX mainline to a KNX
backbone line (line coupler mode), or to simply link together two line segments (line
repeater mode).
Figure 1 Context (Topology)
These are the most outstanding features of the device:
Low Power Consumption.
Galvanic Insulation of the connected lines.
Traffic Filtering according to the project topology and to the built-in address
table.
Telegram Dropping.
Blockage of Device-Configuration Telegrams (telegrams destined to
physical addresses).
Support for Long Messages (up to 250 bytes).
Linecoupler CL
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Customizable Pushbutton for triggering the manual mode, useful at runtime
and for set-up and troubleshooting purposes.
6 Lighting Indicators (LEDs) for accurately showing the bus status of each
line, making the detection of abnormal situations (excessive bus load,
message retransmissions, etc.) easier.
Two alternative application programs permit configuring the device as a Line
Coupler or as a Repeater.
Linecoupler CL
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1.2 INSTALLATION
Figure 2 Element Diagram
As shown in Figure 2 each of the two KNX lines to be coupled must be connected to
one of the two KNX bus connectors available (6, 11). After the connection, the line
coupler can be conveniently mounted on the DIN rail by the usual procedure.
This device does not need any external power supply since it is entirely powered
through the main KNX bus (6).
Note: each line (or line segment) being coupled requires a dedicated power supply. No
power pass from one line to another is performed.
The programming button (10) shown in Figure 2 may be pressed to set Linecoupler CL
in programming mode. After a short press, the programming LED will light in red.
The behaviour of the additional LEDs and the manual function button will be described
in section 2.2.
For detailed information about the technical features of Linecoupler CL, as well as
information on security and on the installation process, please refer to the Datasheet
included within the original packaging of the device and also available at
http://www.zennio.com.
1. Main line status LED.
2. Main line traffic LED.
3. Group address filter status LED.
4. Manual function button.
5. Programming LED.
6. Main line KNX connector.
7. Secondary line status LED.
8. Secondary line traffic LED.
9. Physical address filter status LED.
10. Programming button.
11. Secondary line KNX connector.
6
11
10 5 9
8
7
4 3 2
1
Linecoupler CL
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2 CONFIGURATION
2.1 GENERAL CONFIGURATION
Linecoupler CL can be used as a line coupler (for coupling both a line to a mainline, or
a mainline to a backbone line; the latter is normally referred to as “backbone coupler”)
or as a repeater (for coupling two line segments). A different application program is
provided for each purpose.
2.1.1 LINECOUPLER CL AS A LINE COUPLER
Figure 1 shows a typical scenario where Linecoupler CL can be installed. As a line
coupler, the device may perform line coupling in the nodes marked as “LC”, where a
line connects to a mainline or a mainline connects to a backbone line. In both cases,
Linecoupler CL offers an insulated coupling interface with the possibility of filtering the
traffic according to the topology in the installation or to group-oriented criteria. In other
words, Linecoupler CL will (or will not) let telegrams pass from one line to the other
according to the parameterisation.
Another scenario is shown in Figure 3.
Figure 3 Line Coupling Scenario
Note: the individual address of a line coupler needs to be of the form X.Y.0 (or X.0.0 in
the case of working as a backbone coupler).
3.0.0
4.0.0
3.1.0
4.1.0
4.2.0
3.2.0
4.2.1
3.2.1
4.1.1
4.1.2
3.1.1
3.1.2
4.0.1
3.0.1
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Regarding telegram filtering, the line coupler implements two complementary (and
optional) filters:
Group address filtering: ETS automatically generates a group address table
for the project loaded. This table is transferred to the line coupler during
application program downloads. When a telegram containing a group address
in the “destination address” field arrives, the line coupler will look up if such
address exists in the group table, and eventually transmit the telegram to the
other side –if the address is found–or drop (block) it –if it is not–.
Note: making further changes to a project (addresses, etc.) requires downloading
the updated filter table to the line coupler.
Example: if the line coupler has been parameterised to filter group addresses
from both lines, when it receives a telegram from the mainline destined to a group
address (e.g., 2/5/13) it will check that there is a device in the line with objects
that have been assigned such group address (or that such address has at least
been marked in ETS to pass through the line coupler; see Figure 4). If so, then
the line coupler will let it pass. Otherwise, it won’t be transferred to the line. The
same would also apply to the inverse case (a telegram originating in the line).
Figure 4 ETS Option to Force Passing a Group Address through the Line Coupler.
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