Assortment / System Description

Alarms
Time response to system and process alarms
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Description Name Default value
Monitoring binary input
0:Yes
1:No
Enable event detection 1:No
State that trigger the alarm.
0:Active
1:Inactive
Event parameters 0:Active
Time delay for alarm Time delay 0 [s]
Alarm description text Description Monitoring binary
input n
Description Name Default value
Monitoring analog input
0:Yes
1:No
Enable event detection 1:No
State that trigger the alarm. High limit 0
State that trigger the alarm. Low limit 0
Time delay for alarm Time delay 0 [s]
Neutral zone, covering the hysteresis between
alarm/not alarm
Nz 0
The applicable system limits must be observed.
9.4 Time response to system and process alarms
The common alarm in the application program on the room automation station
checks the reliability of the data points in each program cycle. The result is
outputted without delay from the common alarm data point.
Data points from networked devices are subject to additional delays based on
the typical properties of the bus in question.
A change in reliability of a KNX PL-Link data point is displayed after ca. 31
minutes. The last value remains.
The automation station queries the state of devices on the bus every 15
minutes. If a fault exists and it still remains after the next query (after an
additional 15 minutes), the field devices object is set to the corresponding
state. A shorter update period is not possible.
Binary input
Analog input
Note
DXR2
KNX PL-Link