Dap4 LonWorks Interface Instructions
Document number 600-000-966 Ver. 3
6
In this specific case, the service LED on the interface comes on for one second,
thus making it possible to check the correct operation of the connection between the
interface and LonWorks® network.
7. XIF and NXE file for dap4
The XIF and NXE for dap4 can be downloaded from Data Aire website for
commissioning the dap4.
http://www.
dataaire
.com
, go to System Controls/ dap4.
8. dap4 LonWorks Point list
Note:
Read = NVO, write = NVI, some parameters can be read and written, in this
case these parameters have separate NVO point for read (monitor) and NVI point for
write a new value.
Description
Read/
Write
Variable Name
Data
Type
LONworks
SNVT
Temperature of return air
R
Ret_Air_Tmp
A
nvoReturnTemp
105
Maximum Return air temp in
last 24hrs
R Maximum
A
nvoHiTempHistory
105
Minimum Return air temp in last
24hrs
R Minimum
A
nvoLoTempHistory
105
Temperature setpoint
R/W
Temp_Setpoint
A
nvoTempSetpoint /
nviTempSetpoint
105
Temperature of chilled water
R
CW_Tmp
A
nvoWaterTemp
105
Temperature of discharge air
R
Disch_Air_Tmp
A
nvoDischTemp
105
Value of the analog input 1
R
Opt1_Analog
A
nvoOpt1_Analog
8
Value of the analog input 2
R
Opt2_Analog
A
nvoOpt2_Analog
8
Value of the analog input 3
R
Opt3_Analog
A
nvoOpt3_Analog
8
Value of the analog input 4
R
Opt4_Analog
A
nvoOpt4_Analog
8
Lower limit alarm of discharge
air temp
Write
only
Disch_Air_Lo_SP I
nviLoDiscLimit 105
Relative humidity displayed as
xx%
R Humidity_dis
I nvoHumidity 8
Cooling Stages On = Cooling
stages are currently on This
point applies to DX unit only
R Stages_On
I nvoCoolStagesOn
8
Number of heat stages running R
Heaters_On
I
nvoHeatStagesOn 8
Maximum humidity in last 24hrs R
Maximum
I
nvoHiHumHistory
8
Minimum humidity in last 24hrs R
Minumum
I
nvoLoHumHistory 8