Assortment / System Description

Central applications
Automation station for hierarchical grouping of central applications
24
264 | 275 A6V10866237_en--_b_08
Solar radiation is determined using a brightness sensor. The following
brightness sensors can be read on DXR2 for anti-glare protection:
Sensor Inputs Information is used for
Outdoor brightness north 0… 10 V Application: Anti-glare
protection
Outdoor brightness east 0… 10 V Application: Anti-glare
protection
Outdoor brightness south 0… 10 V Application: Anti-glare
protection
Outdoor brightness west 0… 10 V Application: Anti-glare
protection
Measurements for anti-glare protection are typically made in three cardinal
points since most commonly available brightness sensors have a horizontal
coverage of 90°. The following applies in general depending on the position of
the building:
Sensor direction General position of the building
East, south, west North of the Equator
East, north, west South of the Equator
A more detailed consideration of the sensor orientation is required if the project
is located near the arctic circles. On common Internet search machines, a
search for "sun's course" provides useful information on the simply definition of
sensor orientation.
24.5 Automation station for hierarchical grouping of
central applications
The 4 different configurations for central functions can also be used for
hierarchical grouping.
Reason and benefits of hierarchical grouping:
● Engineering and commissioning in stages
● Structured network topology
AS (Cen-
Bldg)
Automation station at the building
level
AS (R) Automation station in the room
AS (Cen-
Flr)
Automation station at the floor
level
Figure: Plant diagram for façade control automation station
The bundled exchange of data between the building level and floor level takes
place on the automation station at the floor level (Cen-Flr).
Additional sensors can be connected directly via analog or digital I/Os to the
automation on the floor level (Cen-Flr). The function belonging to the sensor
must be configured each time on the DXR2.
Measurement of solar
radiation
CAUTION!
Hierarchical grouping
Sensor placement