C
omprehensIve
d
aTa
T
ables
www.DaikinApplied.com 37
ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER
Table 18: Network Variable Inputs (NVIs) - SmartSource Single and Two Stage Compressor and Enfinity Large Two
Compressor, Continued
Point Name
l
on
W
orks
Variable
(NV Index
2
)
SNVT Type
(SNVT Index)
Range/
Default
(in Units)
Heart-
beat
Description
Network Variable Inputs (NVIs)
Request
nviRequest
(0)
SNVT_obj_request
Default:
0, RQ_NORMAL
No
Requests mode status information or sets operating mode
for a specific functional block. The response is indicated in
nvoStatus.
Fields
• object_id: 0=Node Obj, 1=McQuaySCC_WSHP
• object_request: (See Supported Requests)
Supported Requests
0 = RQ_NORMAL
2 = RQ_UPDATE_STATUS
5 = RQ_REPORT_MASK
Space Temperature
Input
nviSpaceTemp
(8)
SNVT_temp_p
(105)
14 to 122°F
-10 to 50ºC
Default
1
:
621.806ºF
327.67ºC
Recv
Provides space temperature from the network instead of
using the local temperature sensor.
1,3
The network override
will revert back to its default value upon unit controller reboot.
Temperature Setpoint
Input
nviSetpoint
(20)
SNVT_temp_p
(105)
50 to 95ºF
10 to 35ºC
Default
1
:
621.806ºF
327.67ºC
No
Allows the network to set the reference setpoint in the
Occupied and Standby Occupancy modes. Local setpoint
operation must be disabled by nciLocSptEnable. nviSetpoint
always retains the last valid value after power-up.
1
The
network override will revert back to its default value upon unit
controller reboot. See
Space Temperature Setpoint Methods
Temperature Setpoint
Offset Input
nviSetptOffset
(19)
SNVT_temp_p
(105)
-18 to +18ºF
-10 to +10ºC
Default: 0ºF
Recv
Shifts the Occupied and Standby Effective Setpoints via
the network. The Unoccupied Effective Setpoints are not
affected. This is the Short Range Setpoint used when
a remote room sensor setpoint adjust is disabled.
3
The
network override will revert back to its default value upon unit
controller reboot. See
Space Temperature Setpoint Methods
LonMark requires nviSetptOffset to be a SNVT_temp_p
type, which includes the 32°F offset. The network usable
range is 14 to 50°F, which is converted to a differential
temperature (SNVT_temp_p_diff) by subtracting 32°F in the
communication module, resulting in an Effective Offset range
of -18 to +18°F.
1. Analog Null (0x7FFF) is a discrete temperature value of 621.806ºF/327.67ºC. Its purpose is to indicate a sensor failure condition or when the unit controller is not
using that temperature value.
2. The Network Variable index number is a unique identifier for certain
L
on
W
orks
variables. Some BAS companies use this numeric value instead of text to
reference these variables. The NV index number can also be found in the XIF file.
3. 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. the device is disabled or is offline).
4. 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 variable is
saved in nonvolatile memory every 24 hours. If power is lost, that day’s totalizer information is not stored.
Table 19:
Network Variable Outputs (NVOs) - SmartSource Single and Two Stage Compressor and Enfinity Large Two
Compressor
Point Name
l
on
W
orks
Variable
(NV Index
2
)
SNVT Type
(SNVT Index)
Range/
Default
(in Units)
Heart-
beat
Description
Network Variable Outputs (NVOs)
Binary Input Status
nvoBinaryIn
(28)
SNVT_state
(83)
32 bits
Init: All bits = 0
No
Monitors the digital inputs of the unit controller for diagnostic
purposes. Each item is reported as a bit so that multiple
inputs can be viewed simultaneously. See
Binary Output Status
nvoBinaryOut
(29)
SNVT_state
(83)
16 bits
Init: All bits = 0
No
Monitors the digital outputs of the unit controller for diagnostic
purposes. Each item is reported as a bit so that multiple
outputs can be viewed simultaneously. See
for bit description and output settings
for valves and electric heat options.
Brownout Voltage
Reading
nvoBrownout
(SmartSource: 45)
(SS2C: 46)
SNVT_count
(8)
0 to 1023 counts
Default: 500
No
Indicates the Brownout Voltage Reading that is compared
to the Reference Setpoint to then determine if a brownout
condition exists.
1. Analog Null (0x7FFF) is a discrete temperature value of 621.806ºF/327.67ºC. Its purpose is to indicate a sensor failure condition or when the unit controller is not
using that temperature value.
2. The Network Variable index number is a unique identifier for certain
L
on
W
orks
variables. Some BAS companies use this numeric value instead of text to
reference these variables. The NV index number can also be found in the XIF file.
3. 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. the device is disabled or is offline).
4. 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 variable is
saved in nonvolatile memory every 24 hours. If power is lost, that day’s totalizer information is not stored.
