Selection State Value - Daikin MicroTech III Sales And Engineering Data Sheet

Table 16: Network Variable Outputs (NVOs) - Enfinity Single Stage Compressor, Continued
l W
on orks
Point Name
(NV Index
nvoPreviousAlarm
Previous Alarm
(27)
nvoPumpRequest
Pump Request Output
(28)
nvoSetptShift
Setpoint Shift Output
(25)
Status nvoStatus
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 (NV) index number is a unique identifier for certain L
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).
www.DaikinApplied.com
Variable SNVT Type
2 ) (SNVT Index)
Network Variable Outputs (NVOs)
SNVT_str_asc
(36)
SNVT_switch
(95)
SNVT_temp_setpt
(106)
SNVT_obj_status
(93)
Range/
Heart-
Default
beat
(in Units)
Indicates the previous unit fault.
Alarm Strings
• No Alarms
• Low Voltage Brownout
• Comp #1 High Pressure
• Comp #2 High Pressure
• Comp #1 Low Pressure
• Comp #2 Low Pressure
Init: No Alarms No • Comp #1 Suctn Temp Snsr Fail
• Comp #2 Suctn Temp Snsr Fail
• Comp #1 Low Suction Temp
• Comp #2 Low Suction Temp
• Room Temp Sensor Fail
• Entering Water Temp Snsr Fail
• Condensate Overflow
• Serial EEPROM Corrupted
• Invalid Configuration
• Low Entering Water Temp
Indicates when the unit is requesting flow from the loop water
controller. The loop pump must be running to provide adequate
flow through the unit so the compressor(s) can operate safely.
nviComprEnable can be used by the BAS to indicate if proper
loop fluid flow is occurring.
Default: Null No
Selection
No Flow Req
Flow Req
Null
Represents the local hardwired setpoint adjustment value from
the room sensor potentiometer. It is valid when configured for
Short Range Setpoint Adjust.
-3 to 3ºF
Supported Fields
-1.67 to 1.67ºC
Send • occupied_cool
Init:
• standby_cool
All Setpts 0ºF
• unoccupied_cool (always 0)
• occupied_heat
• standby_heat
• unoccupied_heat (always 0)
Reports the status of the requested functional block in the
device as commanded from nviRequest.
Init:
Supported Fields
All structure No
• object_id: 0=Node Obj, 1=McQuaySCC_WSHP
elements = 0
• invalid_id: 0=Normal ID, 1=Invalid ID
• invalid_request: 0=Valid Req, 1=Invalid Req
• report_mask: 0=Not Supported, 1=Supported
W variables. Some BAS companies use this numeric value instead of text to
on orks
29 ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER
C d
omprehensIve aTa
Description
State Value
0 0%
1 100%
-1 0 to 100%
T
ables