Default properties of trend logs
When a new trend log object is created (either manually, by the BACnet quality check or when creating surrogate BACnet objects), some properties will be initialized with default values.
Property |
Default value |
|---|---|
Stop_When_Full |
false |
Activated |
true |
Notification_Class |
192 |
Notify_Type |
1 |
Client_COV_Increment |
Depends on the unit of the referenced object. See table below. |
Buffer_Size |
100 |
Notification_Threshold |
90 |
Unit |
Default Client_COV_Increment |
Default Logging_Type |
|---|---|---|
% |
2 |
1 |
% obs./mtr. |
2 |
1 |
% rf |
5 |
1 |
%/s |
2 |
1 |
°C |
0.5 |
1 |
A |
0.5 |
1 |
a |
0.1 |
1 |
bar |
0.1 |
1 |
cd |
5 |
1 |
cd/m² |
5 |
1 |
cycle/min |
1 |
1 |
d |
0.1 |
1 |
g(H₂O)/kg dry air |
5 |
1 |
h |
0.25 |
1 |
hPa |
10 |
1 |
Hz |
0.5 |
1 |
J |
100 |
1 |
J/kg·K |
10 |
1 |
K |
0.5 |
1 |
K/h |
0.5 |
1 |
K/min |
0.5 |
1 |
kJ |
10 |
1 |
kJ/kg |
10 |
1 |
kJ/kg dry air |
10 |
1 |
km/h |
1 |
1 |
kPa |
1 |
1 |
kV |
0.5 |
1 |
kVA |
1 |
1 |
kvar |
1 |
1 |
kW |
1 |
1 |
kWh/m² |
10 |
1 |
l/h |
10 |
1 |
l/min |
10 |
1 |
l/s |
1 |
1 |
m/s |
1 |
1 |
m³/h |
10 |
1 |
m³/s |
0.5 |
1 |
mA |
1 |
1 |
mbar |
1 |
1 |
min |
5 |
1 |
MJ |
1 |
1 |
MJ/kg dry air |
10 |
1 |
MJ/m² |
10 |
1 |
mo |
0.1 |
1 |
MV |
0.5 |
1 |
MVA |
0.1 |
1 |
Mvar |
0.1 |
1 |
MW |
0.1 |
1 |
Pa |
10 |
1 |
pf |
0.1 |
1 |
ppb |
50 |
1 |
ppm |
50 |
1 |
s |
60 |
1 |
S |
5 |
1 |
V |
0.5 |
1 |
VA |
10 |
1 |
var |
10 |
1 |
W |
10 |
1 |
W/m²·K |
1 |
1 |
wk |
0.1 |
1 |
Ω |
1 |
1 |
Units not listed above have a default Client_COV_Increment of 1 and a default Logging_Type of 0.