Line coupler S
General
Status: March 16 (Subject to change) Page
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1.2
Product and functional overview
The Line Coupler Line Coupler S can be used as a line/area coupler or as a repeater.
1.2.1
Line/area coupler
As a line/area coupler, the Line Coupler S connects the data flow of two lines but isolates them electrically.
The coupler can route physically addressed, group addressed as well as broadcast telegrams.
In order to route a physically addressed telegram, the Line Coupler S compares the target address with its
own physical address. The physical address of the Line Coupler S determines the line affiliation. The
telegrams are routed or not routed depending on the evaluation and parameterization.
If the Line Coupler S has not yet received its intended project-assigned physical address, this can cause
device faults during commissioning.
The Line Coupler S responds in accordance with its parameterization to telegrams with group addresses.
In order to reduce the telegram traffic, the Line Coupler S only routes telegrams in normal operation
(standard settings), whose group addresses have been entered in its filter table. However, it can be useful,
particularly during commissioning and for diagnostic purposes, to set the option
route
for both parameters
Group telegrams main group 0…13
and
Group telegrams main group 14…31
, i.e. the filter table is
switched off. If the system is fully in operation, both parameters should be reset again to the standard
values. The Line Coupler S is then subsequently reprogrammed with the application. Here the correct filter
table will be transferred to the Line Coupler S.
Note
The application
Couple Repeat/2.x
for the ETS 4 filters the main groups 14…31.
With the application
Couple/1.x
, no filter table is calculated by the ETS 3 for the main groups 14…31.
For this reason, the main groups 14...31 should not be used. If this is necessary, the parameter
Main
group 14…31
must be set with the option
route
.
If the Line Coupler S routes a telegram and does not receive an acknowledgement or there is a
transmission error, the Line Coupler S repeats the telegram up to three times. With the parameters
In case
of errors repeat group telegrams,
the response for both lines is set separately. This parameter should be
left as it is in the standard setting.
Normally the Line Coupler S only acknowledges telegrams that it routes. The parameter
Telegram
confirmation…
facilitates seperate acknowledgement settings for both lines. This parameter should be left
as it is in the standard setting.
