DNT-T221-FCU Application Guide
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System Log (AV35)
The Description field in this object provides a log of the ten most recent events. If the time and date were
previously set, then the event time is displayed. Each log entry has the format [dd/mm/yy hh:mm:ss ***]
where *** is the event code. Each event type is specified by a letter, (H- Hardware, C- Communication, S-
Service or O-Other) which is followed by a two-digit code. For example, 02/05/06 10:12:47 S04.
The Present Value indicates how many items are in the log.
Code
Description
H01
EEPROM communication failure
H02
RTC communication failure
H03
LCD communication failure
H04
Reset
H05
Flash programming
H06
Flash failure
H07
Input failure
H08
I2C communication failure
H09
Humidity sensor failure
C01
Communication overflow
C02
Buffer unavailable
C03
Into Sole Master
C04
DNA conflict
C05
MAC address conflict
S01
Communication disabled
S02
Communication enabled
S03
COV subscription failure
S04
Time Sync received
S05
Database cleared
S06
Speed Changed
R00-07
MS/TP state machine lockup
R10-15
MS/TP timeout lockup
R21
BACnet application processing error
R22
Object execution error
R23
UI manager error
O00
Other
