Siemens DESIGO RXC - Sources of errors

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Siemens RXZ95.1/LON – Gateway EnOcean/LonWorks CM2N1661en_02
Building Technologies Sources of errors 23 Sep 2011
Sources of errors
Possible causes:
 Room unit exhausted  poor light conditions
Check documentation on room unit
 RF link faulty  distance, interference emitters
Check documentation on room unit
 Room unit not / incorrectly learned-in in the gateway (SensorID)
 Room unit faulty
Impact on the system:
When UCPTenoceanRcvTm has elapsed, nvoAlarmSensor is set (evaluation
optional).
T0 --
T1 Last valid value from T0; otherwise 0.0 C
T2 With SCPTmaxSendTime  T1
Without SCPTmaxSendTime  invalid (327.7 C) after RXC heartbeat
has elapsed (60 min)
T3 Ditto; if 0.0 C  frost alarm
Possible causes:
 Gateway has no power (power_fail)
 Bus interruption
 Error in configuration of gateway
 Gateway faulty
Impact on the system:
T0 --
T1 --
T2 Invalid (327.7 C) after RXC heartbeat has elapsed (60 min)
power_fail gateway:
nvo_temp_p = 0.0 C until room unit sends again (up to approx. 20 min.)
Ohne SCPTmaxSendTime  T2 = last valid T2
SCPTmaxSendTime < approx. 20 min  T2 = 0.0 C (frost alarm)
SCPTmaxSendTime > approx. 30 min  T2 = last valid T2
T3 Ditto; at 0.0 C  frost alarm
F1:
Gateway receives no
telegrams from the
room unit
F2:
RXC receives no
L
ONWORKS telegrams
from the gateway