Hardware/General
5
DL bus
Every controller of the series ESR (ESR21 version 5.0 and higher), UVR and HZR has a data
output DL that forms, together with the (sensor) earth, a two-pole data line (DL bus). The
C.M.I. has 2 DL inputs for simultaneous measurement recording of up to two controllers.
Controller 1
C.M.I.
Controller 2
Any cable with a cross section of 0.75 mm² and a length of up to max. 30 m can be used for
the data line (e.g. twin-strand). For longer cables, we recommend the use of shielded cable
whereby the cable shielding must be connected with the sensor earth.
If two controllers are recorded with the C.M.I., separately
shielded
cables must be used as
protection against crosstalk. The data link for the DL bus must likewise never be run in one
cable with the CAN bus.
WARNING:
With controllers UVR1611K and UVR1611S, output 14 (DL) can be used either as data
line or as switch output (with extra auxiliary relay). For data logging via DL bus, output 14
must
therefore always be defined as a “Data line” in the “Outputs” menu.
With the controllers UVR1611 of the
E-series
(“board version“), output 14 is
simultane-
ously
used as switch output OUTPUT 14 and data line (DL bus). For activation, the output
must be para
meterised as a “Switch output”, even if the data link is to be activated. For
activation of the data line, the query “UVR1611E:” must additionally be answered with ”yes”
(see additional manual for UVR1611 E).
UVR1611 controllers from version A2.16 additionally enable the recording of network
input variables, which are handled by the C.M.I. as a virtual second UVR1611. When
parameterising
output 14 as a “Data line”, the menu option
NETW.EG.=>DL.:
must be an-
swered with
yes
. Recording of network variables is therefore not possible, if two controllers
are connected with the C.M.I. (this note applies only to data recording via DL bus).
The scope for data recording of this 2nd virtual UVR1611 in
the menu “
Settings/Data logging
“ of the C.M.I.s must be set
like this:
