MDT Technologies SCN-RT 6REG.01 User manual

MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
1
10/2011

Manual
MDTTemperature Controller

SCN‐RT6REG.01
SCN‐RT6AP.01

TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
2
1Content
1Content.................................................................................................................................................2
2Overview...............................................................................................................................................4
2.1Overviewdevices...........................................................................................................................4
2.2Usage&Areasofuse.....................................................................................................................4
2.3Exemplarycircuitdiagram.............................................................................................................5
2.4Structure&Handling.....................................................................................................................5
2.5Functions.......................................................................................................................................6
2.5.1ÜbersichtFunktionen.............................................................................................................7
2.6SettingsattheETS‐Software.........................................................................................................8
2.7Startingup.....................................................................................................................................8
3Communicationobjects........................................................................................................................9
3.1Defaultsettingsofthecommunicationobjects............................................................................9
4ReferenceETS‐Parameter..................................................................................................................11
4.1GeneralSettings..........................................................................................................................11
4.2Channelselection........................................................................................................................12
4.3Temperaturemeasurement........................................................................................................13
4.4Alarm/Messages..........................................................................................................................15
4.5Controllergeneral........................................................................................................................17
4.5.1Controllertype.....................................................................................................................17
4.5.2Operatingmodes&Setpoints..............................................................................................18
4.5.3Setpointoffset......................................................................................................................24
4.4.4Blockingobjects....................................................................................................................26
4.5.5Heating/Coolingrequestobjects..........................................................................................27
4.5.6Deadzone.............................................................................................................................28
4.6Controllersettings.......................................................................................................................30
4.6.1Controlvalue........................................................................................................................30
4.6.2PIcontrolcontinuous...........................................................................................................31
4.5.3PIcontrolswitching(PWM)..................................................................................................34
4.6.42‐stepcontrol(switching).....................................................................................................36
4.6.5Directionofcontroller..........................................................................................................38
4.6.6Additionalsettingsforheatingandcooling.........................................................................39
5Index...................................................................................................................................................43
5.1RegisterofIllustrations...............................................................................................................43
5.2Listoftables.................................................................................................................................44


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
3
6Attachment.........................................................................................................................................45
6.1Statutoryrequirements...............................................................................................................45
6.2Routinedisposal..........................................................................................................................45
6.3Assemblage..................................................................................................................................45
6.4Controller.....................................................................................................................................46
6.4.12‐Stepcontrol.......................................................................................................................46
6.4.2PI‐controlcontinuous...........................................................................................................47
6.4.3PI‐controlswitching(PWM).................................................................................................48
6.5Directionofcontroller.................................................................................................................49
6.6Datasheet....................................................................................................................................50



TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
4
2Overview

2.1Overviewdevices

Themanualreferstothefollowingdevices,whichareinourassortmentofroomtemperature
controller(OrderCoderespectivelyprintedinboldtype):
SCN‐RT6REG.01–6‐foldTemperaturecontroller,REG
oControllertype:2Step,PI‐continuous,PIswitching(PWM);MDRC;Measuringof
temperaturebyexternalsensors,e.g.SCN‐TS1UP.01
SCN‐RT6AP.01–6‐foldTemperaturecontroller/sensor,flushmounted
oControllertype:2Step,PI‐continuous,PIswitching(PWM);surfacemounted;Measuring
oftemperaturebyexternalPT1000sensors,e.g.SCN‐PTST3.01(standardversion),SCN‐
PTAN3.01(straponinstallation),SCN‐PTDE3.01(ceilinginstallation)

2.2Usage&Areasofuse

Theroomtemperaturecontrollerhasitsareasofuseatthecontrollinginhomeinstallationsandin
theobjectrange.
Alotofdifferentcontrolscanberealizedbytheroomtemperaturecontroller.Therearethree
integratedcontrollers,whichcanbeadjustedtothepresentsystem.Thethreecontrollerscan
controlaswellheatingsystemsascoolingsystems.Therearesettingoptionsforupto4different
operatingmodes.Additionallevels,blockingfunctions,alarmsandmessagescanalsobeadjusted.
The6‐foldcontrollerhas6channels;everychannelcanbedeactivatedoractivatedandadjusted
individually.Everychannelneedsacertainsensor.Wehavethefollowingexternalsensorsinour
assortment:SCN‐PTST3.01,SCN‐PTAN3.01andSCN‐PTDE0.01.TheSCN‐TS1UP.01canalsobeused
formeasuring.


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
5
2.3Exemplarycircuitdiagram



Illustration1:Exemplarycircuitdiagram

2.4Structure&Handling

Thecontrollerisavailableintwodifferentdesigns,oneforthesurfacemountingandonemodular
device.Eachofthedevicescontainofaprogrammingbutton,busconnectionandaprogramming
LED.



Illustration2:TemperatureControllermodular  Illustration3:TemperatureControllersurfacemounted
 SCN‐RT6REG.01SCN‐RT6AP.01


 

TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
6
2.5Functions

Thetemperaturecontrollercontainsof6channels.Everychannelcancaptureatemperatureand
giveoutacontrolvalue.
Thecontrollercontainsof5differentsubmenus,whicharedividedinthefollowingway:

Setupgeneral
Generalsettingscanbemadeatthismenuandtheuseddevicecanbechosen.These
adjustmentsareonlyavailableonceandrefertoallofthe6channels.


Thefollowingsubmenusareforeveryofthe6channelsavailableandindividualparameterizeable:

Temperaturemeasurement
Thesettingsforthemeasurementforthetemperaturecanbemadeatthismenu.Settings
forthemin/maxvaluesandthesensorconfigurationareavailableatthisparameter.
Allsensorscontainofanin‐plantbalance.
Alarm/Messages
Alarmsandmessagescanbeadjustedatthismenu.Thisalarmsandmessagesreportwhen
thetemperaturefallsbelowanadjustedvalueorexceedanadjustedvalue.
Controllergeneral
Atthismenu,thedesiredfunction(heating,coolingorheating&cooling)canbeassigned
andgeneralsettings,likesetpoints,canbeadjusted.
Controllersettings
Thismenuappearsassoonasthecontrollerhasgotafunctionassigned.Integrated
controllerscanbechosenatthismenuandthechosencontrollercanbeparameterized
further.


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
7
2.5.1ÜbersichtFunktionen
SetupgeneralStartupdelaytimedelaytimeafterturnonofthebuspower
HardwareselectionAdjustmentoftheuseddevice
ChannelsettingsChannelselectioneverychannelactivate/deactivatable
Temperature
measurement
Sendactualvaluecanbeswitchedon/off
reportconditionforchangeof
temperatureadjustablefrom0,1Kto2Kr
Sendactualvaluecycliccanbeswitchedon/off
timesofsendingadjustable
Min/maxvaluesreportcanbeswitchedon/off
canberesetmanualbycommunication
object
Sensorconfigurationadditionalconnectionofanexternal
sensorpossible
balanceinternal/externalsensor
adjustable
balanceworthforinternalsensor
adjustable
Alarm/MessagesAlarmscanbeswitchedon/off
Frost‐/Heatalarm
Messagescanbeswitchedon/off
ReportconditionoftheMin/Max
temperaturesparameterizeable
ControllergeneralControllertypeHeating
Cooling
Heating&Cooling
PriorityOrderoftheoperatingmodesadjustable
Basis‐SetpointReferencepointofthetemperaturecontrol
SetpointsReferencepointsforoperatingmodesand
controllermodesparameterizeable
ShiftofsetpointsMax.shiftparameterizeable
Scopeoftheshiftparameterizeable
canbesaved
Blockingobjectscanbeusedforheatingandcoolingseparately


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
8
ControllersettingsIntegratedcontroller2stepcontrol
oHysteresisparameterizeable
PI‐controlcontinuous
oMax.valueofcontrolvariable
oSettingofusedsystem
ofreeparameterizationofspecific
valuesavailable
PIcontrolswitching(PWM)
oMax.valueofcontrolvariable
oSettingofusedsystem
ofreeparameterizationofspecific
valuesavailable
oPWM‐cycletimeparameterizeable
Additionallevelsavailable
Switchoverheating/coolingautomatically
viaobject
Directionofcontrollernormal
inverted
Chart1:functionaloverview


2.6SettingsattheETS‐Software

Selectionattheproductdatabase:

Manufacturer:MDTTechnologies
Productfamily:ControlSystem
Producttype:Roomtemperaturecontroller
MediumType:TwistedPair(TP)
Productname:addictedtotheusedtype,e.g.:SCN‐RT6xxx.xx
Ordernumber:addictedtotheusedtype,e.g.:SCN‐RT6REG.01


2.7Startingup

Afterwiringtheallocationofthephysicaladdressandtheparameterizationofeverychannelfollow:
(1) Connecttheinterfacewiththebus,e.g.MDTUSBinterface
(2) setbuspowerup
(3) Presstheprogrammingbuttonatthedevice(redprogrammingLEDlights)
(4) LoadingofthephysicaladdressoutoftheETS‐Softwarebyusingtheinterface(redLEDgoes
out,aswellthisprocesswascompletedsuccessful)
(5) Loadingoftheapplication,withrequestedparameterization
(6) Switchthepowersupplyon
(7) Ifthedeviceisenabledyoucantesttherequestedfunctions(alsopossiblebyusingtheETS‐
Software)


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
9
3Communicationobjects

3.1Defaultsettingsofthecommunicationobjects

Thefollowingchartshowsthedefaultsettingsforthecommunicationobjects:
Defaultsettin
g
s
Nr.Channel/Input Function Length PriorityCR W T U
0Channel1Actualtemperaturevalue* 2Byte Low XX X
1Channel1Highermessagevalue 1Bit Low XX X
2Channel1Lowermessagevalue 1Bit Low XX X
3Channel1Frostalarm 1Bit Low XX X
4Channel1Heatalarm 1Bit Low XX X
5Channel1Externalsensor 2Byte Low X X
6Channel1Setpointcomfort 2Byte Low XX X X
7Channel1Manualsetpointvalueoffset 2Byte Low X X
8Channel1Controlvalueheating 1Bit Low XX X
8Channel1Controlvalueheating 1Byte Low XX X
8Channel1Controlvalue
heating/cooling
1BitLowXX X
8Channel1Controlvalue
heating/cooling
1ByteLowXX X
9 Channel1Controlvaluecooling 1Bit Low XX X
9 Channel1Controlvaluecooling 1Byte Low XX X
10Channel1Modecomfort 1Bit Low XX X
11Channel1Modenight 1Bit Low XX X
12Channel1Modefrost/heatprotection 1Bit Low XX X
13Channel1Heatingdisableobject 1Bit Low X X
14Channel1Coolingdisableobject 1Bit Low X X
15Channel1Heatingrequest 1Bit Low XX X
16Channel1Coolingrequest 1Bit Low XX X
17Channel1Heating/Coolingswitchover 1Bit Low X X
18Channel1Maxmemoryvalue 2Byte Low XX X X
19Channel1Minmemoryvalue 2Byte Low XX X X
20Channel1Min/Maxmemoryreset 1Bit Low X X X
21Channel1Resetsetpointvalue 1Bit Low X X
22Channel1DPT_HVACStatus 1Byte Low XX X
23Channel1ErrorexternalSensor 1Bit Low XX X
24Channel1Actualsetpoint 2Byte Low XX X

TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
10
Chart2:Communicationobjects–defaultsettings

*temperaturesignalofanexternalsensormustbeconnectedtothiscommunicationobject

Youcanseethedefaultvaluesforthecommunicationobjectsfromtheupperchart.Accordingto
requirementsthepriorityoftheparticularcommunicationobjectsaswellastheflagscanbe
adjustedbytheuser.Theflagsallocatesthefunctionoftheobjectsintheprogrammingthereby
standsCforcommunication,RforRead,Wforwrite,TfortransmitandUforupdate.


Thecommunicationobjectsareidenticalforallchannels,butincreasetheirnumbersasshownatthe
chart.Ifachannelisdeactivated,noobjectswillbeshownforthischannel.



25Channel1DPT_RHCC 2Byte LowXX X
26Channel1Modeselection 1Byte LowXX X
33Channel2Actualtemperaturevalue* 2Byte LowXX X
34‐59Channel2identicalobjectsas
Channel1
 
66‐92Channel3identicalobjectsas
Channel1
 
99‐
125
Channel4identicalobjectsas
Channel1
 
132‐
158
Channel5identicalobjectsas
Channel1
 
165‐
191
Channel6identicalobjectsas
Channel1
 

TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
11
4ReferenceETS‐Parameter

4.1GeneralSettings

ThefollowingsettingsareavailableattheETS‐Software:

Illustration4:Generalsettings


Thechartshowsthedynamicrangeofthegeneralsettings:
ETS‐textDynamicrange
[defaultvalue]
comment
Startupdelaytime0‐60s
[0]
Timebetweenanuploadandthe
functionalstartofthedevice
Selecthardware

SCN‐RT6REGwithoutSensor
REG
SCN‐RT6APwithSensor
Adjustmentoftheuseddevice

Chart3:Generalsettings


Theparameterstartuptimeoutadjuststhetimebetweenanuploadandthefunctionalstartofthe
device.Theusedhardwarereactsonlyafterexpirationoftheadjustedtime.Allinputcommands
beforethestartuptimeoutexpire.
Additional,youhavetoselecttheusedhardwareatthismenu.
Thereareadditionalsettingsatthedeviceswithsetwheelanddisplay.Thesesettingsaredescribed
atthefollowingsegments.



TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
12
4.2Channelselection

Theillustrationshowsthechannelselectionattheexampleofchannel1.Thesettingsarethesame
forthechannels2‐6:

Illustration5:Channelselection


Thechartshowsthedynamicrangeofthechannelselection:
ETS‐textDynamicrange
[defaultvalue]
comment
Channel1‐6inactive
active

Whenthechannelgetsactivated,new
submenusappearattheleftselection
menu.Foradeactivatedchannelareno
furtherparameterizationoptions.
Chart4:Channelselection 


Ifachannelisdeactivated,therewillbenofurtherparameterizationoptionsforthischannelandthe
submenuswillbehidden.Thesubmenus,foranactivatedchannel,areshownbelowitschannel.At
thesesubmenus,thefurtherparameterizationcanbeadjusted.




TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
13
Thefollowingsettingsareavailableforallofthe6channels.Theassociatedcommunicationobjects
arevalidforitschannel.

4.3Temperaturemeasurement

ThefollowingsettingsareavailableattheETS‐Software:

Illustration6:Temperaturemeasurement

Thechartshowsthedynamicrangeoftheavailableparameters:
ETS‐textDynamicrange
[defaultvalue]
comment
Sendactualvalueafterchange
of
(onlyatRT6AP)
disable
0,1K‐2,0K
Sendingconditionfortheactual
temperaturevalue
Sendactualtemperature
cyclically
(onlyatRT6AP)
disable
1min–60min
Activationofthecyclicallysendingof
thetemperaturevalue
Sendmin/maxvaluedisable
Sendenable
Activationofthesendingofmin/max
values
Internalsensorcorrectionvalue
(value*0,1K)
(onlyatRT6AP)
‐50–50
[0]
Correctionoftheinternalsensor
Internal/externalsensor
(onlyatRT6AP)
100%intern
90%intern/10%extern
80%intern/20%extern
…
100%extern
Adjustmentofthebalancebetween
internalandexternalsensor
Chart5:ParameterTemperaturemeasurement

Theeffectsofthesettingsaredescribedatthefollowingpage.



TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
14
Sendactualvalueafterchangeof
Thisfunctionssetswhenthecurrenttemperaturevalueshallbesent.Bychoosingthesetting
“disable”,novaluewillbesentatall.

Sendactualtemperaturecyclically
Youcanactivatethisfunctionbychoosingatime.Now,theroomtemperaturecontroller
sendsthecurrenttemperatureperiodicallyaftertheadjustedtime.Thisfunctionis
independentfromthefunction“Sendactualvalueafterchangeof”.Sothetemperature
controllerwillsenditscurrentvaluealsoifthereisnochangeofit.

Internalsensorcorrectionvalue(value*0,1K)
Youcancorrectthemeasuredtemperaturevaluebythissetting.Bychoosinganegative
valueforthisparameter,themeasuredvaluewillbeloweredandbychoosingapositive
value,themeasuredvaluewillbelifted.Thevalueismultipliedby0,1K,sothecurrentvalue
canbeloweredorliftedupto5K.Thissettingisuseful,whenthesensorwasbuiltatan
unfavorablelocation,e.g.becomingdraftornexttoawindow.Whenthisfunctionis
activated,thetemperaturecontrollerwillalsosendthecorrectedvalues.
Allsensorsarematchedin‐plantto0,1K.

Thechartshowstherelevantcommunicationobjectforthetemperaturevalue:
NumberNameLength Usage
0Actualtemperaturevalue2Bytesendsthecurrenttemperaturevalue
Chart6:Communicationobjecttemperaturevalue

Sendmin/maxvalue
Thisfunctionactivatesthesendingandsavingofthemin/maxvalues.Whenthefunctionis
activatedby“Sendenable”,threecommunicationobjectswillbeshown.Twoobjectsforthe
MinandtheMaxvalueandonefortheresetofthemin/maxvalues.
Thechartshowstherelevantcommunicationobjectsforthisparameter:
NumberNameLength Usage
18Maxmemoryvalue2Bytesendsandsavesthemaximaltemperature
value
19Minmemoryvalue2Bytesendsandsavestheminimaltemperaturevalue
20Min/Maxmemoryreset1Bitresetsthemin/maxvalues
Chart7:CommunicationobjectsMin/Maxvalues

Internal/externalsensor
Thissettingsetsthebalancebetweenaninternalandanexternalsensor.Thesetting100%
interndeactivatesanyexternalsensor.Bychoosinganyothersetting,anexternalsensorwill
beactivated.So,alsocommunicationobjectsfortheexternalareshown.Abalanceof100%
externdeactivatestheinternalsensorandthetemperaturecontrollerwillonlynotevaluesof
theexternalsensor.
Thecommunicationobjectsforanactivatedexternalsensorareshownatthechart:
NumberNameLength Usage
5Externalsensor2Bytesendsthemeasuredtemperaturevalueofthe
externalsensor
23Errorexternalsensor1Bitsendsanerror,whentheexternalsensorsends
novalueformorethan30min
Chart8:Communicationobjectsexternalsensor


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
15
4.4Alarm/Messages

ThefollowingsettingsareavailableattheETS‐Software:

Illustration7:Alarm/Messages

Thechartshowsthedynamicrangeofthealarmandmessages:
ETS‐textDynamicrange
[defaultvalue]
comment
Alarmnotactive
active
Activationofthealarmfunction
Frostalarmifvalue<3°C‐10°C
[7°C]
Dynamicrangeofthefrostalarm
Adjustmentpossibleifalarmisactivated
Heatalarmifvalue>25°C‐40°C
[35°C]
Dynamicrangeoftheheatalarm
Adjustmentpossibleifalarmisactivated
Messagesnotactive
active
Activationofthemessagefunction
Messageifvalue>18°C‐40°C
[26°C]
Dynamicrangeoftheuppermessage
Adjustmentpossibleifmessagesare
activated
Messageifvalue<1°C‐25°C
[13°C]
Dynamicrangeofthelowermessage
Adjustmentpossibleifmessagesare
activated
Chart9:ParameterAlarm/Messages




TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
16
Alarm
Therearetwoparameterizeablealarms,whenthealarmfunctionwasactivated.The
frostalarmisforthenotificationofthelowertemperaturesandtheheatalarmforthe
notificationoftheuppertemperatures.Bothalarmshaveaseparatecommunicationobject
withthesizeof1Bit.
Thechartshowstherelevantcommunicationobjectsforthealarms:
NumberNameLength Usage
3Frostalarm1Bitsendfrostalarm
4Heatalarm1Bitsendheatalarm
Chart10:Communicationobjectsalarm

Messages
Themessagefunctionisalmostidenticaltothealarmfunction,butlessinitspriority.There
aretwomessagesavailable,whenthemessagefunctionwasactivated.Thesetwomessages
canbeparameterizedseparately.Thedynamicrangeofthemessagefunctionismuchbigger
thantheoneofthealarmfunction.Soitisalsopossible,torealizerunningturnover.Both
messageshaveanowncommunicationobjectofthesize1bit.Thesecommunicationobjects
areshowninthechartbelow:
NumberNameLength Usage
1Highermessagevalue1BitSendtheachievementofthehigherreporting
limit
2Belowmessagevalue1BitSendtheachievementofthelowerreporting
limit
Chart11:Communicationobjectsmessages






TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
17
4.5Controllergeneral

4.5.1Controllertype

ThefollowingsettingsareavailableattheETS‐Software:

Illustration8:Settingcontrollertype


Thechartshowsthedynamicrangeofthecontrollertype:
ETS‐textDynamicrange
[defaultvalue]
comment
ControllertypeControlleroff
Heating
Cooling
HeatingandCooling
Adjustmentofthecontrollertype
Thefurthersettingsdepenttotheadjusted
controllertype
Chart12:Settingcontrollertype

Thecontrollertypedefinesthefunctionoftheroomtemperaturecontroller.Targetofthecontrolis
tokeepanadjustedtemperatureconstant.Therearealotofsettings,whichcanhelptoachievethis
aim.Thesettingsdependtotheadjustedcontrollertype.
Bychoosingthesetting“controlleroff”,nofurthersettingsarepossible.


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
18
4.5.2Operatingmodes&Setpoints

ThefollowingsettingsareavailableattheETS‐Software:

Illustration9:Operatingmodes&setpoints

Thechartshowsthedynamicrangeoftheoperatingmodesandsetpoints:
ETS‐textDynamicrange
[defaultvalue]
comment
Basiscomfortsetpoint18,0°C–25,0°C
[21,0°C]
Thebasiscomfortsetpointisthereference
pointofthecontrol.
NightreductionLoweringinK
0K–10,0K
[3,0K]
Loweringofthetemperaturebychoosing
theoperatingmodenight.
Relativetothebasiscomfortsetpoint.
StandbyreductionLoweringinK
0K–10,0K
[2,0K]
getsactivatedwhennootheroperating
modewaschosen
Theloweringisrelativetothebasis
comfortsetpoint.
Setpointfrostprotection3°C–12°C
[7°C]
Setpointoftheoperatingmodefrost
protection.
indicatedbyanabsolutevalue
Setpointheatprotection24°C–40°C
[35°C]
Setpointoftheoperatingmodeheat
protection.
indicatedbyanabsolutevalue
Chart13:Operatingmodes&setpoints



TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
19
4.4.2.1OperatingmodeComfort
Theoperatingmodecomfortisthereferencemodeofthecontroller.Thetemperaturereductionat
theoperatingmodesnightandstandbyrefertothesetpointofthecomfortmode.Whenaroomis
used,theoperatingmodecomfortshouldbeactivated.Theconfiguredsetpoint,the“basiccomfort
setpoint,isvalidfortheheatingprocessifthecontrollerwassetasheating&cooling(describedat
4.4.7).
Thechartshowstherelevant1‐Bitcommunicationobject:
NumberNameLength Usage
10Modecomfort1BitActivationoftheoperatingmodecomfort
Chart14:Communicationobjectoperatingmodecomfort

4.4.2.2OperatingmodeNight
Theoperatingmodenightshallcauseasignificantdecrementofthetemperature,forexampleat
nightorattheweekend.Thereductioncanbeprogrammedfreelyandreferstothebasiccomfort
setpoint.Ifyouhaveprogrammedareductionof5Kandabasiccomfortsetpointof21°C,the
setpointforthenightmodewillbe16°C.
Thechartshowstherelevant1‐Bitcommunicationobject:
NumberNameLength Usage
11Modenight1BitActivationoftheoperatingmodenight
Chart15:Communicationobjectoperatingmodenight

4.4.2.3OperatingmodeStandby
Whennobodyisintheroom,theoperatingmodestandbyisused.Thisoperatingmodeshallcausea
lowreductionofthetemperature.Sotheroomcanbeheatedupfastagain.
Thevalueforthereductioncanbeprogrammedfreelyandreferstobasiccomfortsetpoint.Ifyou
haveadjustedareductionof2Kandabasiccomfortsetpointof21°C,thesetpointfortheoperating
modestandbywillbe19°C.
Thestandbymodecannotbeactivatedbyacertaincommunicationobject.Itgetsactivated,whenall
operatingmodesareswitchedoff.

4.4.2.4OperatingmodeFrost/Heatprotection
Theoperatingmodefrostprotectiongetsactivated,whenthecontrollertypewassetasheating.The
heatprotectiongetsactivated,whenthecontrollertypewassetascooling.Whenthecontrollertype
issettoheatingandcooling,thecombinedoperatingmodefrost‐/heatprotectionisactivated.
Thisoperatingmodecausesanautomaticallyswitchonofheatingorcooling,whenaparameterized
isexceededorthetemperaturefallsbelowaparameterizedtemperature.Atthisoperatingmode,
thetemperatureissetasabsolutevalue.Youshouldactivatethisfunctionifyouarelongerabsent
andthetemperaturemustnotfallbelowaspecificvalueorexceedaspecificvalue.
Thechartshowstherelevant1‐Bitcommunicationobjects:
NumberNameLength Usage
12Modefrostprotection1BitActivationoftheoperatingmodefrostprotection
12Modeheatprotection1BitActivationoftheoperatingmodeheatprotection
12Modefrost/heatprotection1BitActivationoftheoperatingmodefrost/heat
protection
Chart16:Communicationobjectoperatingmodefrost/heatprotection


TechnicalManualTemperatureControllerSCN‐RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
20
4.4.2.5Priorityoftheoperatingmodes

ThefollowingsettingsareavailableattheETS‐Software:

Illustration10:Priorityoftheoperatingmodes

Thechartshowsthedynamicrangeofthepriorityoftheoperatingmodes:
ETS‐textDynamicrange
[defaultvalue]
comment
PriorityFrost/Comfort/Night/Standby
Frost/Night/Comfort/Standby
Adjustmentofthepriorityofthe
operatingmodes
Chart17:Priorityoftheoperatingmodes

Thesettingofthepriorityenablestoadjustwhichoperatingmodeshallbeswitchedprimarilywhen
morethanoneoperatingmodeisswitchedon.AtthepriorityofFrost/Comfort/Night/Standby,the
comfortmodewillbeswitchedonevenifcomfortandnightisswitchedontothesametime.The
nightmodewillonlybeactive,whenthecomfortmodeisswitchedoff.nowthecontrollerchanges
automaticallytothenightmode.

4.4.2.6Operatingmodechangeover

Thereare2possibilitiesforthechangeoveroftheoperatingmodes:Ontheonehandtheoperating
modescanbeswitchedonbytheir1Bitcommunicationobjectandontheotherhandbya1Byte
object(fromVersion1.2).
Theselectionoftheoperatingmodesbytheir1Bitcommunicationobjectoccursviaadirect
selectionoftheirindividualcommunicationobject.Withconsiderationoftheadjustedpriority,the
operatingmode,whichwasselectedviathe1Bitcommunicationobject,isswitchedonoroff.When
alloperatingmodesareswitchedoff,thecontrollerchangestothestandbymode.

Example:
TheprioritywassetasFrost/Comfort/Night/Standby.
Operatingmodeadjustedoperatingmode
ComfortNightFrost‐/Heatprotection 
100Comfort
010Night
001Frost‐/Heatprotection
000Standby
101Frost‐/Heatprotection
110Comfort
Chart18:Examplechangeoveroftheoperatingmodesvia1Bit
