Assortment / System Description

Alarms
System alarms on DXR2
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9 Alarms
The DXR2 has internal alarms. The alarm concept for Desigo room automation
distinguishes between system alarms and process alarms.
9.1 System alarms on DXR2
System alarms monitor the reliability of data points or the state of networked
devices. This always occurs as a common alarm for the room, the room
segment, or central function. This information can be read and displayed via
BACnet client, e.g. a management station.
● Monitoring KNX PL-Link buttons is not possible.
● With regard to system limits (number of Event Enrollment objects) for a
room automation station: The state of networked devices is normally only
monitored if such a request exists.
● The state of networked devices is monitored indirectly via reliability of their
data points (common alarm).
9.2 Preconfigured system alarms
A common alarm is formed by default in the room, room segment, and central
function based on reliability monitoring.
KNX PL-Link components can be connected to the room automation station.
The operating state of the bus is monitored via the Event Enrollment object
"PL-Link_1'EE". The operating state of the room automation station is also
monitored by default.
9.3 Process alarms on free inputs
Inputs and outputs can be configured as free inputs on all DXR2s. This permits
the querying of unused input and output switching states or directly controlling
another device over BACnet. The available or free inputs can be monitored with
a process alarm.
The monitoring function must be configured to enabled these alarms.
Description Default value
Monitoring binary input 1…n
0:None
1:Active
0:None
Monitoring analog input 1…n
0:None
1:Active
0:None
The enable, limit values, and description text must also be configured for each
configured monitor.
Notes
Common alarm
Monitoring operating
state