-
Data Aire, Inc.
dap4
BACnet Protocol Integration Instructions
Data Aire, Inc. 230 West BlueRidge Ave,
Orange, CA 92865
Document number: 600‐000‐959 August 2011 Revision 1.0
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 2
Table of Content
I. BACnet IP –Setup Procedures for dap4 Ethernet Card
........................................ 3 II. BACnet MS/TP – Setup
Procedures for dap4 MS/TP Card ..................................
6
A. Startup Checklist for dap4 BACnet MS/TP card B. General
Procedure for setting up BACnet MS/TP Card
III. Troubleshooting Flow Charts
................................................................................
9 IV. BACnet Object Definition
....................................................................................
12
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 3
I. BACnet IP - Setup Procedures for dap4 Ethernet Card Note:
When connecting to the Ethernet card, a crossover cable must be
used
1. Configure BMS PORT 1 into BACnet protocol in Menu G: Network
Config of the dap4
controller.
2. All Ethernet cards were set up for a DHCP server. You must
give the card its factory IP address to access the card and then
switch it to the Ethernet protocol.
3. To do a factory reboot of the card, shut of power to the dap4
controller. Next, press
and hold the button on the card. Now, power on the dap4
controller. Wait approximately 20 seconds until the status LED
begins to blink red 3 times slowly. After the first Red blink,
release the push button. After releasing the button, wait
approximately 50 seconds and the card is now able to be
communicated to.
4. The default settings for the card are as follows.
IP address – 172.16.0.1 Net Mask – 255.255.0.0 Device Inst -
77000
5. Once you have reset the Ethernet card, you must now configure
your network card in your PC to 172.16.0.* * any value other then
1.
6. After your PC’s network card is configured, open internet
explorer and enter the card’s
IP address (172.16.0.1.) 7. The following prompt will be
displayed on your PC’s Screen (user name – admin,
password – fadmin)
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 4
8. After entering the correct information to log on to the
Ethernet card, you will be taken to
the following screen.
9. Click the configuration tab on the left. Then click on the
BACnet tab across the top of the screen.
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 5
10. This field is where you can change the settings for the
card. The device instance of the card is changed beside the pCOWeb
Device Inst text. Each card must have its own unique device
instance.
11. The variable ranges can be set on the same page. Scroll to
the bottom to change
these ranges.
12. After you have set up your card, click Submit.
13. After your changes have been accepted, you may now change
you IP address (if applicable.) While still under the configuration
tab, click network across the top of the screen.
14. Under Eth0, change the IP address and Netmask to your
desired values. 15. Scroll to the bottom of the screen and click
submit.
16. It will take approximately 5 minutes for the IP address
change to take
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 6
II. BACnet MS/TP - Setup Procedures for dap4 MS/TP Card
A. Startup Checklist for dap4 BACnet MS/TP card
1. Configure BMS PORT 1 into BACnet protocol in Menu G: Network
Config of the dap4 controller.
2. MS/TP card is installed in dap4 control (if yes, skip to step
5. If no, contact the manufacturer of your unit to make sure that
the card is configured before proceeding to next step.)
3. Disconnect the power supply from the dap4 and remove the
serial card cover
4. insert card in dap4 control. Line up the white terminal block
on the card with pins in the serial card slot. Press firmly until
card is fully seated in dap4.
5. Fit the cover supplied with the BACnet MS/TP card.
6. Run 18 AWG twisted pair shielded cable from your network to
the BACnet MS/TP card. Make sure (+) goes to the middle of the
terminal block while (–) goes to the right connection
7. Power on the dap4 control.
8. Status lights match following sequence:
Starting sequence: on power-up, or after restarting BACnet MS/TP
card, the Status LED switches in the following sequence:
- 2 seconds after restarting: quick flash red-green-red-green -
5 seconds after restarting: green on steady - Around 50 seconds
after restarting, the starting sequence has been completed, the
Status LED flashes to indicate the quality of communications
with the dap4. - Quick green-OFF-green: communication with the dap4
is OK (dap4 ON-LINE); - Slow red-OFF-red: communication has not
been established with the dap4 (dap4
OFF-LINE) - Green-red-green: BACnet MS/TP card detects errors or
a temporary lack of response
from the dap4.
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 7
The RS485 LED (right) indicates the status of communication with
the BACnet MS/TP network (RS485). Starting sequence: on power-up or
after rebooting BACnet MS/TP card, the RS485 LED switches in the
following sequence:
- After approximately 50 seconds after restarting BACnet MS/TP
card: slow green–red–green–red: at the end, BACnet will be active.
Status of communication with the BACnet MS/TP network: once the
starting sequence has been completed, the RS485 LED flashes to
indicate the quality of communication with the BACnet MS/TP
network:
- Green with occasional red flashes if communication is OK.
B. General Procedure for setting up BACnet MS/TP Card
Before starting the following steps, a RS485-USB adapter and
Carel software BACset must be present. BACset, free software
compatible for BACnet is available for download at
http://www.carel.com.au/carelksa/web/eng/home.jsp. Get the latest
version by going into the pCOweb tab and select BACnet.
1. After BACset has been installed, click on the MS/TP protocol.
If you are using a router, select the correct router configuration.
Once these two fields have been selected, click ok.
2. The following screen will now be presented.
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 8
3. All cards from factory come with a factory default device
instance of 77000. This value must match the device instance of the
card in order to be able to read/write to the card.
4. The MS/TP station address (MAC Address) is defaulted to 0.
Set this field to your desired address. *If you have 5 cards, all 5
cards must have different station addresses (1, 2, 3, 4, 5)*
5. Max Master field must be changed to the highest station
address on the network. If the highest station address is 10, Max
Master must be set to 10.
6. Assuming the dap4 controller is not the true master of the
communications system, Max Info Frames should be set =< the Max
Info Frames of your BAS.
7. The following fields should be changed to the maximum number
of variables being communicated by the dap4 controller. If you have
40 analog variables, Max pCO Analogs should be set to 40.
8. Once all fields have been set accordingly, click Write at the
top of the BACset program. The Read/Write status bar will start at
0% and go to 100%. Once at 100%, the write has been completed.
9. After all of the prior steps have been completed, you may now
change the device instance of the card. *Note* This value must be
different from card to card. There can be no conflicting device
instances on the same network.
10. To change the device instance, click enable on the
enable/disable device instance write. Once this is selected, you
will be able to enter a value in the device instance write box that
was originally grayed out. *All cards must have a different device
instance and cannot conflict with any other unit’s device instance
in the system*
11. Change the device instance to desired value and then click
Write.
12. Once the status bar is at 100%, the card now has the new
device instance.
C. Troubleshooting Flow Charts BACnet IP and MS/TP
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 9
In addition, if the following error occurs when starting BACset
in the MS/TP protocol, continue to the following section.
1. Open BACset and click on the BACnet/IP protocol.
Values are being communicated through BACnet protocol and considered reliable
All values are “0” from startup and/or deemed unreliable
Dap4 control set for BAUD rate of 19200, station address of 1 and protocol BACnet
Adjust setting on dap4 control, contact Data Aire service if required
Card has latest firmware on it?
Go to http://ksa.carel.com
, under Connectivity tab, click pCOweb, then choose the latest firmware
Has BMS supervisory system autodiscovered all points correctly?
Contact Data Aire Service to make sure BACnet card is configured
correctly
Communication works correctly
Have BMS contractor auto‐discover all the units in question
Values appear reliable, but “freeze” or periodically go to “0” and a power start is required
Yes
No
Yes
Yes
Yes
No
No
Yes
No
Yes
No
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 10
2. If you receive the following error when attempting to open
BACnet/IP, please skip to step 10.
3. At this point you should be able to double-click the bac door
client that is running in your system tray. (Icon on the far
left.)
4. Select the configure menu. 5. Set the MS/TP parameters Com
Port (restart) to be correct for your 485 converter
6. Click OK
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 11
7. Close BACset.
8. Reopen BACset and select the MS/TP protocol.
9. You should now be able to run BACset.
10. Go to your network adapter properties and remove the BACMAC
protocol.
11. Re-boot
12. Open up BACnet/IP
13. You should see the same error but when it searches for a new
IP it should find the proper one.
14. Go back to step 3 and follow the recommended procedure to
configure you COM port
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 12
BACnet Object Definitions
Type Object Description Read/Write
Object Name Instance No. Analog
Temperature of return air
R Ret_Air_Tmp AV1
Analog
Maximum Return air temp in last 24hrs
R Maximum AV2
Analog
Minimum Return air temp in last 24hrs
R Minumum AV3
Analog
Temperature setpoint
R/W Temp_Setpoint AV4 Analog
comp is staged on R/W
Temp_Deadband AV5 Analog
Humidity Sensor Calibration
R Ain_offs AV6 Analog
Calibration R
Ain_offs AV7 Analog
Temperature of chilled water *
R CW_Tmp AV8 Analog
Temperature of discharge air *
R Disch_Air_Tmp AV9 Analog
Calibration ‐ Optional discharge*
R Ain_offs AV10 Analog
Sensor Calibration ‐ Optional *
R Ain_offs AV11 Analog
Chilled water is requested *
R/W EngSaver_Setpoint AV12 Analog
Value of the analog input *
R Opt1_Analog AV13 Analog
Value of the analog input *
R Opt2_Analog AV14 Analog
Value of the analog input *
R Opt3_Analog AV15 Analog
Value of the analog input *
R Opt4_Analog AV16
Analog
Analog Sensor 1 Minimum Value *
R Y1 AV17
Analog
Analog Sensor 1 Maximum Value *
R Y2 AV18
Analog
Analog Sensor 1 Calibration *
R Ain_offs AV19
Analog
Analog Sensor 2 Minimum Value *
R Y1 AV20
Analog
Analog Sensor 2 Maximum Value *
R Y2 AV21
Analog
Analog Sensor 2 Calibration *
R Ain_offs AV22
Analog
Analog Sensor 3 Minimum Value *
R Y1 AV23
Analog
Analog Sensor 3 Maximum Value *
R Y2 AV24
Analog
Analog Sensor 3 Calibration *
R Ain_offs AV25
Analog
Analog Sensor 4 Minimum Value *
R Y1 AV26
Analog
Analog Sensor 4 Maximum Value *
R Y2 AV27
Analog
Analog Sensor 4 Calibration *
R Ain_offs AV28
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 13
Type Object Description Read/Write
Object Name Instance
No.
Integer
Lower limit alarm of discharge air temp *
R/W Disch_Air_Lo_SP AV1001
Integer
Relative humidity displayed as xx%
R Humidity_dis AV1002
Integer Cooling Stages On = Cooling stages are currently on – This point applies to DX unit only
R/W Stages_On AV1003
Integer
Number of heat stages running
R Heaters_On AV1004
Integer
Maximum humidity in last 24hrs
R Maximum AV1005
Integer
Minimum humidity in last 24hrs R
Minumum AV1006
Integer
Cooling Utilization Over Last Hour ‐Percentage of cooling is used in the last hour of operation; this point applies to DX unit.
R Comp_duty AV1007
Integer
Heating Utilization Over Last Hour ‐Percentage of heating is used in the last hour of operation
R Heat_duty AV1008
Integer
Humidifier Utilization Over Last Hour ‐Percentage of humidifier is used in the last hour of operation
R Hum_duty AV1009
Integer Compressor 1 Runtime ‐This point applies to DX unit with one compressor ‐high
R C1_Hours_H AV1010
Integer Compressor 1 Runtime ‐This point applies to DX unit with one compressor ‐low
R C1_Hours_L AV1011
Integer Compressor 2 Runtime ‐This point applies to DX unit with dual compressor ‐ high
R C2_Hours_H AV1012
Integer Compressor 2 Runtime ‐This point applies to DX unit with dual compressor ‐ low
R C2_Hours_L AV1013
Integer
Heater 1 Runtime ‐ high
R Ht1_Hours_H AV1014 Integer
Heater 1 Runtime ‐ low
R Ht1_Hours_L AV1015 Integer
Current second R
CURRENT_SECOND AV1016 Integer
Current minute R
CURRENT_MINUTE AV1017 Integer
Current hour R
CURRENT_HOUR AV1018 Integer
Current day R CURRENT_DAY
AV1019
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 14
Type Object Description Read/Write
Object Name Instance No. Integer
Current month R
CURRENT_MONTH AV1020 Integer
Current year R
CURRENT_YEAR AV1021
Integer Alarm settting of return air temp to determine there is a fire
R/W Firestat_SP AV1022
Integer
Humidity upper limit alarm
R/W Hum_Hi_SP AV1023
Integer
Upper limit alarm of return air temp
R/W Ret_Air_Hi_SP AV1024
Integer
Humidity lower limit alarm
R/W Hum_Lo_SP AV1025
Integer
Lower limit alarm of return air temp
R/W Ret_Air_Lo_SP AV1026
Integer
Amount hum must change from setpoint before acting
R/W Hum_deadband AV1027
Integer Humidity setpoint R/W
Hum_setpoint AV1028
Integer
Time before the system starts up
R/W Start_dly AV1029
Integer Optional Alarm 1 Delay
R Del AV1030 Integer
Optional Alarm 2 Delay R
Del AV1031 Integer
Optional Alarm 3 Delay R
Del AV1032
Integer
Message on optional alarm screen, some also add function
R Alarm1_txt AV1033
Integer
Message on optional alarm screen, some also add function
R Alarm2_txt AV1034
Integer
Message on optional alarm screen, some also add function
R Alarm3_txt AV1035
Integer
Message on optional alarm screen, some also add function
R Alarm4_txt AV1036
Integer
Comps 0=none, 1=one,Carel Side BMS Side 2=one+UL, 3=two, 4=two+UL, 5=Four/two circuit
R Comp_sel AV1037
Integer
0=none, 1= comp limited,2=twocomp limited, 3= comp unlimited, 4=twocomp unlimited
R Dehum_mode AV1038
Integer Number of heat stages
R Reheat_sel AV1039
Integer 0=none, 1=comp mod, 2=comp non, 3= comf mod, 4= conf non mod
R Hum_sel AV1040
Integer
Text displayed on all alarm screens
R Alm_Contact_msg AV1041
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 15
Type Object Description Read/Write
Object Name Instance
No.
Integer 0= start wo/alarm, 1= start w/alarm, 2= requires reset of alarm
R PowerUp_sel AV1042
Integer
0=None, 1=short beeps, 2=long beep, 3=Constant
R Buzzer_Select AV1043
Integer
% of 10volts of analog output #1
R CW_disp AV1044
Integer
Chilled Water Utilization Over Last Hour ‐ This applies to Chilled water or Energy saver units.
R WtrVlv_duty AV1045
Integer Humidifier Runtime ‐ high
R Hum_Hours_H AV1046 Integer
Humidifier Runtime ‐ low R
Hum_Hours_L AV1047 Integer
Blower Runtime ‐ high R
Blower_Hours_H AV1048 Integer
Blower Runtime ‐ low R
Blower_Hours_L AV1049 Integer
Optional Alarm 4 Delay R
Del AV1050
Integer 0= no comp assist, 1=one comp assist, 2= two comp assist, 3... 4...
R Assist_sel AV1051
Integer Water valve type 0=none,1=chill, 2=Engy, 3=Aux chill,4=Disc Reg
R WtrVlv_sel AV1052
Integer
Water valve voltage 0= 0‐10, 1=2‐10, 2=7‐10, 3=6‐9, 4=4‐7
R WtrVlv_Volts_sel AV1053
Integer
% of 10volts of analog output #2
R Hum_Volts AV1054 Integer
Dehumidifier Runtime ‐ High
R Dehum_Hours_H AV1055 Integer
Dehumidifier Runtime ‐ Low R
Dehum_Hours_L AV1056
Integer Time between drain cycles 0=12hr, 1=24hr, 2=48hr,3=96hr, 4=None
R AutoFlush_dly AV1058
Integer
Value sent to optional analog output#1
R Y4_Out AV1059
Integer
Value sent to optional analog output#2
R Y5_Out AV1060
Integer Current Fan Airflow ‐ Based on calculated Pressure Differential formula*
R Air_Flow AV1061
Integer Name of the sensor *
R Opt_Snsr1_name AV1062 Integer
Analog Sensor 1 Type {0=NTC
1=PT1000 2=0‐1VDC 3=0‐10VDC 4=4‐20mA 5=ON/OFF 6=0‐5VDC 7=NTC HT 8=‐50T90 9=10T170} *
R Ain_type AV1063
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 16
Type Object Description Read/Write
Object Name Instance
No. Integer
Name of the sensor * R
Opt_Snsr2_name AV1064
Integer
Analog Sensor 2 Type {0=NTC 1=PT1000 2=0‐1VDC 3=0‐10VDC 4=4‐20mA 5=ON/OFF 6=0‐5VDC 7=NTC HT 8=‐50T90 9=10T170} *
R Ain_type AV1065
Integer
Name of the sensor * R
Opt_Snsr3_name AV1066
Integer
Analog Sensor 3 Type {0=NTC 1=PT1000 2=0‐1VDC 3=0‐10VDC 4=4‐20mA 5=ON/OFF 6=0‐5VDC 7=NTC HT 8=‐50T90 9=10T170} *
R Ain_type AV1067
Integer Name of the sensor *
R Opt_Snsr4_name AV1068
Integer
Analog Sensor 4 Type {0=NTC 1=PT1000 2=0‐1VDC 3=0‐10VDC 4=4‐20mA 5=ON/OFF 6=0‐5VDC 7=NTC HT 8=‐50T90 9=10T170} *
R Ain_type AV1069
Integer
CW Fan speed (%) sent via BMS
R/W CW_Fan_Speed_bms
AV1070 Integer
DX Fan speed (%) sent via BMS
R/W DX_Fan_Speed_bms AV1071
Integer
Maximum Fan speed (% of output) modulation.
R/W Fan_Speed_max AV1072
Integer Minimum Fan speed (% of output) modulation from pressure.
R/W Fan_Speed_min AV1073
Integer
Fan pressure setpoint (0.01inches of water) *
R/W Fan_Pr_sp AV1074
Integer
Fan pressure band (0.01 inches of water) *
R/W Fan_pr_band AV1075
Integer Maximum air flow limit of setpoint from BMS or valve modulation.
R/W Fan_AF_max AV1076
Integer Minimum air flow limit of setpoint from BMS or valve modulation.
R/W Fan_AF_min AV1077
Integer Fan K Factor R/W
Fan_Kfactor AV1078
Integer
Number of fans installed in this unit
R/W Num_Fans AV1079
Integer
Heater 2 Runtime ‐ high
R Ht2_Hours_H AV1081 Integer
Heater 2 Runtime ‐ low
R Ht2_Hours_L AV1082 Integer
Heater 3 Runtime ‐ high
R Ht3_Hours_H AV1083 Integer
Heater 3 Runtime ‐ low
R Ht3_Hours_L AV1084 Integer
Energy Saver Runtime ‐ This
optional point applies to energy saver units only –high *
R Engy_Hours_H AV1085
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 17
Type Object Description Read/Write
Object Name Instance
No.
Integer Energy Saver Runtime ‐ This optional point applies to energy saver units only ‐ low
R Engy_Hours_L AV1086
Integer Chilled Water Runtime ‐ This applies to chilled water units only ‐ high
R CW_Hours_H AV1087
Integer Chilled Water Runtime ‐ This applies to chilled water units only ‐ low
R CW_Hours_L AV1088
Integer
Compressor 3 Runtime ‐ This applies when unit has four stages tandem compressors ‐high
R C3_Hours_H AV1089
Integer
Compressor 3 Runtime ‐ This applies when unit has four stages tandem compressors ‐low
R C3_Hours_L AV1090
Integer
Compressor 4 Runtime ‐ This applies when unit has four stages tandem compressors. ‐high
R C4_Hours_L AV1091
Integer
Compressor 4 Runtime ‐ This applies when unit has four stages tandem compressors. ‐low
R C4_Hours_H AV1092
Integer Condenser Runtime ‐ high
R Cond_Hours_H
AV1093 Integer
Condenser Runtime ‐ low R
Cond_Hours_L AV1094
Integer
Fan speed (% of output) when compressor cooling.
R DX_Fan_Speed AV1095
Integer
Fan speed (% of output) when cold water cooling.
R CW_Fan_Speed AV1096
Integer
Fan air flow setpoint for DX unit (cfm) *
R Fan_AF_DX_sp AV1097
Integer
Fan air flow setpoint for CW unit (cfm) *
R Fan_AF_CW_sp AV1098
Integer
Zone Airflow Setpoint kcfm *
R/W ZM_Airflow_SP AV1099 Digital
Dehumidify mode is running R
Dehum_On BV1 Digital
Humidifier is running R
Hum_On BV2 Digital
Energy saver is running R
Engy_On BV3
Digital
Cooling inhibit from Zone Master *
R Cool_Inhibit BV4
Digital
Heat inhibited due to alarm condition
R Heat_Held BV5
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 18
Type Object Description Read/Write
Object Name Instance
No.
Digital
Humidifier stopped due to alarm
R Humidifier_inhibit BV6
Digital Dehum is inhibited
R Dehum_Inhibit BV7 Digital
Reheat during dehum R
Rht_during_dehum BV8 Digital
Water under floor alarm R
Floor_Wtr_alm BV9 Digital
No air flow alarm R
Air_Flow_alm BV10 Digital
Dirty filter from digital input
R Filter_alm BV11
Digital
Alarm from humidifier digital input *
R Humidifier_alm BV12
Digital
Temperature of return air above firestat alarm set point
R Firestat_alm BV13
Digital
One or more comps has short cycled
R Shortcycle_alm BV14
Digital
Sensor is out of range R
Humidity_fail BV15 Digital
Sensor is out of range
R Ret_Air_fail BV16
Digital
Maintenance Schedule Due alarm R
Maint_alm BV17
Digital High pressure alarm R
C1_HP_alm BV18 Digital
Low pressure alarm R
C1_LP_alm BV19 Digital
High pressure alarm R
C2_HP_alm BV20 Digital
Low pressure alarm R
C2_LP_alm BV21
Digital
Smoke detected from digital input *
R Smoke_alm BV22
Digital
No water flow alarm * R
Wtr_Flow_alm BV23 Digital
Sensor is out of range R
Disch_Air_fail BV24
Digital
Temperature of return air above alarm set point
R RA_Tmp_hi_alm BV25
Digital
Temperature of return air below alarm set point
R RA_Tmp_lo_alm BV26
Digital
Humidity above alarm set point
R Hum_hi_alm BV27 Digital
Humidity below alarm set point
R Hum_lo_alm BV28 Digital
Fan overload R Fan_Overload BV29
Digital
Standby pump on: Check primary pump ‐Optional alarm. Pump failure input signal required *
R Stdby_Pump_On BV30
Digital
Custom alarm #1 ‐Optional alarm. External alarm input required. Factory programmed custom message required *
R Cust_msg_Sw1 BV31
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 19
Type Object Description Read/Write
Object Name Instance
No.
Digital
Custom alarm #2 ‐Optional alarm. External alarm input required. Factory programmed custom message required *
R Cust_msg_Sw2
BV32
Digital
Custom alarm #3 ‐Optional alarm. External alarm input required. Factory programmed custom message required *
R Cust_msg_Sw3 BV33
Digital
Custom alarm #4 ‐Optional alarm. External alarm input required. Factory programmed custom message required *
R Cust_msg_Sw4
BV34
Digital
Humidifier stopped due to custom alarm switch
R HumSw_Inhibit BV35
Digital
Heat inhibited due to custom switch alarm condition
R Heat_inhibit BV36
Digital
Reheat and humidification inhibited from operation
R Rht_Hum_inhibit BV37
Digital
Temperature of discharge air below alarm set point *
R Disch_Tmp_lo_alm BV38
Digital
Manual override: Check bypassswitches ‐ Standard alarm.Carel Side BMS Side Manual override switch is on
R Override_Alm BV39
Digital
High condensation from digital input *
R Condensation_alm BV40
Digital
Unit in standby, all functions held off ‐ Optional alarm. Control input signal required Factory setting required *
R Unit_In_Standby BV41
Digital
Sensor is out of range R
CW_sns_fail BV42
Digital
Humidifier stopped due to custom alarm switch
R HumSw_Chk_Cyl BV43
Digital
Cooling operation inhibited by BMS
R/W BMS_Cooling_inhibit BV44
Digital
Heat inhibited due to BMS
R/W BMS_Heat_inhibit BV45
Digital
Humidifier operation inhibited by BMS
R/W BMS_Humidifier_inhibit BV46
Digital
Dehumidify mode inhibited by bms
R/W BMS_Dehum_inhibit BV47
Digital Inhibit fan by bms
R/W Fan_Inhibit_bms BV48 Digital
Reduce control humidity cycling
R Hum_Expect
BV49
*: These points are optional – Optional sensors or components required
-
Data Aire’s dap4 BACnet BMS
Document: 600-000-959 20
Type Object Description Read/Write
Object Name Instance
No.
Digital Temperature Mode 0=°C 1=°F
R/W USASHR_F_C BV50
Digital
Lead compressor select 0= C1,1= C2
R Lead_Comp BV52
Digital
Water valve direct or reverse acting
R WtrVlv_dir BV53
Digital Alarm: UPS power on: Check main power ‐Optional alarm. External alarm input required *
R Ups_On_alm BV54
Digital
Loss of power requires manual reset of alarm
R PwrUp_alm BV55
Digital Local alarm #1: See tag inside door =Optional alarm. External alarm input required
R SeeTag_cust_alm1 BV56
Digital Local alarm #2: See tag inside door =Optional alarm. External alarm input required
R SeeTag_cust_alm2 BV57
Digital Local alarm #3: See tag inside door =Optional alarm. External alarm input required
R SeeTag_cust_alm3 BV58
Digital Local alarm #4: See tag inside door =Optional alarm. External alarm input required
R SeeTag_cust_alm4 BV59
Digital
Enable short cycle alarm of the compressors
R ShortCycle_alm_en BV60
Digital
Supervisor (BMS) On‐Off. Show the state OFFbyBMS in main mask (1: Off; 0: On). See Instance BV62 for detail
R/W Superv_Off BV61
Digital This variable must change at least once every 5 minutes or unit will turn on
R/W BMS_Heartbeat BV62
*: These points are optional – Optional sensors or components required
