SFPTnightTimeCooling

Night time cooling..   

A detailed description of the function profile with all inputs and outputs as well as the configuration parameters can be found at the VDI - Verein der Deutschen Ingineure. The Web Link is:

VDI - Room control functions (RA functions)
 

Network Variables

Configuration Properties

nviCalcCtrlFunc
nviCalcTempStpts
nviRoomTemp
nviSensOutTemp
nvoNightCoolPos

cpFreeCoolPosition
cpMaxReceiveTimeRoomTemp
cpMaxReceiveTimeSensOutTemp
cpMaxSendTime

cpOutRoomTempDiff

 

Details:

Resource Set: Standard 00:00:00:00:00:00:00:00-0
Index: 156
Obsolete: no
Key: 16529
Inheriting: no


Mandatory Network Variables

nviCalcCtrlFuncCalculated control function.:    
Member Number: 1
Base type:
SNVT_hvac_mode
Direction: input
Service: any
nviSensOutTempSensor outdoor temperature.:    
Member Number: 2
Base type:
SNVT_temp_p
Direction: input
Service: any
nviRoomTempTemperature:    
Member Number: 3
Base type:
SNVT_temp_p
Direction: input
Service: any
nviCalcTempStptsCalculated temperture setpoint.:    
Member Number: 4
Base type:
SNVT_temp_setpt
Direction: input
Service: any
nvoNightCoolPosNight cooling position.:    
Member Number: 5
Base type:
SNVT_lev_percent
Direction: output
Service: any


Mandatory Configuration Properties

cpFreeCoolPositionFree cooling valve position.:   Valve position in percent open for free cooling HVAC mode. 
Member Number: 1
Base type:
SCPTfreeCoolPosition
Applies to SFPTnightTimeCooling
Array: not permitted
Minimum: 0,000
Default: 0,000
cpMaxReceiveTimeRoomTempMaximum receive time.:   The maximum period of time that may expire with no updates on the associated input network variables before the object goes into heartbeat failure mode. A zero value disables the mechanism.  
Member Number: 3
Base type:
SCPTmaxRcvTime
Applies to nviRoomTemp
Array: not permitted
Default: 900,0
cpMaxReceiveTimeSensOutTempMaximum receive time.:   The maximum period of time that may expire with no updates on the associated input network variables before the object goes into heartbeat failure mode. A zero value disables the mechanism.  
Member Number: 4
Base type:
SCPTmaxRcvTime
Applies to nviSensOutTemp
Array: not permitted
Default: 900,0
cpMaxSendTimeMaximum send time.:   The maximum period of time between consecutive transmissions of the current value. 
Member Number: 5
Base type:
SCPTmaxSendTime
Applies to nvoNightCoolPos
Array: not permitted
Default: 300,0


Optional Configuration Properties

cpOutRoomTempDiffOutdoorRoomTempDiff:   minimum temperature difference between outdoor and room temperature to activate night cooling. 
Member Number: 2
Base type:
SCPToutRoomTempDiff
Applies to SFPTnightTimeCooling
Array: not permitted
Default: 0,00