BACNET DATA TABLES
ED 19129-1
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13
Table 4: Analog Values, Continued
Point Name
Object
Type/
Instance
BACnet Object
Name
Range/Default
(in Units)
Read/
Write
Access
2
Non-
volatile
Memory
1
Description
Variable Fan Speed
PWM - Heat Stage 2
AV:60
cpVsHeat2PWM
50 to 100%
Default: 100%
W
Y
Variable fan speed PWM output for heating stage 2 .
Applies when network PWM fan configuration enable
(MSV:17) is enabled .
Variable Fan Speed
PWM - Electric Heat
AV:61
cpVsElecHeatPWM
100%
W
Y
Variable fan speed PWM output for auxiliary
(electric) heating . Applies when network PWM fan
configuration enable (MSV:17) is enabled.
Variable Fan Speed
PWM - Hydronic Heat
AV:62
cpVsHydroHeatPWM
50 to 100%
Default: 80%
W
Y
Variable fan speed PWM output for hydronic heating .
Applies when network PWM fan configuration enable
(MSV:17) is enabled .
Variable Fan Speed
PWM - Hydronic Cool
AV:63
cpVsHydroCoolPWM
50 to 100%
Default: 80%
W
Y
Variable fan speed PWM output for hydronic cooling .
Applies when network PWM fan configuration enable
(MSV:17) is enabled .
MAC Address /
Address Switch
AV:411
MacAddress
(DIP = 255)
0 to 255
W
Y
The function of AV:411 depends on the value of
the BACnet module physical address switch (S3) .
When it is set to 255, dynamic MAC addressing
is used to commission the BACnet module . This
variable represents the unit’s MAC Address that
can be written through the network or through the
configuration serial port.
When the physical address switch is not set to a
value of 255, it reflects the address switch setting
and is read-only .
N
MacAddressSwitch
(DIP < 255)
R
System Minimum
Instance
4,5
AV:412
SystemMinInstance
0 to 4194302
Default: 3101000
W
Y
This value is added to the MAC Address to determine
the final BACnet Device Name and Device Instance
Number . Example: the default Device Instance
Number = 3101007 when the MAC = 7 .
1 . Parameter is stored in FLASH/EEPROM (non-volatile memory) in either the communication module or in the unit controller . If Non-volatile Memory = Y, then the
value is saved through a power cycle . Writes to this parameter must be limited . If Non-volatile Memory = N, the value is not saved through a power cycle .
2 . R = Read Only, W = Writeable, C = Commandable
3 . The values of the individual Occupancy Temperature Setpoints (AV1 to AV6) must be kept in ascending order as follows:
AV6 <= AV5 <= AV4 <= AV1 <= AV2 <= AV3
4 . AV412 has an ObjectName of SystemMinInstance, the Present Value is writeable, and it has a default value of 3101000 . During the commissioning process,
the present value of AV412 is added to the MAC Address to determine the Device Instance Number . In order to change the value of AV412 on the BACnet
communication module in the unconfigured state, the BAS must broadcast a new present value to AV412 using the BACnet service (BIBB – BACnet Interface
Building Block) called “Unconfirmed COV” with a ProcessID value of 1. This prevents unauthorized unconfirmed writes, or changes, to AV412. Note that this change
affects the AV412 present value for every water source heat pump BACnet communication module on the trunk.
5 . AV:412 can be set via the BAS using auto-addressing . .
6. A Null value is equal to 621.806ºF/327.67ºC. Its purpose is to indicate a sensor failure condition or when the unit controller is not using that particular temperature
value .
7 . After Receive Heartbeat is enabled, this variable reverts to the default (non-override) value if it is not refreshed often enough through a network command or if
communication is disabled (i .e . BACnet device communication control = disable) .
8 . The totalizer continues to increment until the maximum count is reached, at which point the BAS must reset the value by issuing a write command . The parameter
is saved in nonvolatile memory every 24 hours . If power is lost, that day’s totalizer information is not stored .
9. The Invalid Configuration alarm occurs if software incompatibility has been detected or the hardware configuration jumpers are not selecting a valid model type.
Binary Inputs (BI:1 - BI:14)
are available as network
parameters based on software-configured inputs (
) .
Binary Inputs (Configuration Settings) BI:15 - BI:34
are
availalble to the network. The network parameters reflect
hardware switch input settings for configurable unit options.
Binary Outputs BO:1 - BO:12
are available to the network
when the parameter dedicated to the corresponding binary
output is configured (
) .
NOTE:
All BI/BOs are read-only from the BACnet network .
Table 5: Binary Inputs
Point Name
Object
Type/
Instance
BACnet Object
Name
Range
Description
A2L Board Fault
BI:1
A2L_Fault
0 = Alarm
1 = Normal
A2L refrigerant sensor fault input . Also see
section .
0 = A2L Sensor Fault Alarm (0 VDC)
1 = Normal (up to 12 VDC)
Emergency Shutdown
BI:2
EmergShutDn
0=Normal
1=Shutdown
Emergency stop input . Indicates unit shutdown when input is pulled to ground .
0 = Normal unit operation (Inactive Text: Normal)
1 = Unit is shut down (Active Text: Shutdown)