1 Alfa Laval IQHeat ModBus

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1 1 Alfa Laval IQHeat ModBus Alfa Laval IQHeat är anpassat efter ModBus/IP och ModBus/RTU. Det innebär att man kan hämta värden och ställa värden i reglerenheten. Detta dokument går igenom hur man ansluter en IQHeat till ett ModBus nätverk och vilka variabler som finns att tillgå. 1.1 Hårdvara och anslutning: IQHeat har tre olika ModBusanslutningar. En intern på reglerenhetens nedre långsida benämnd RS485 och en speciell modul benämnd POL902. Båda dessa är seriella gränssnitt och benämns ofta som ModBus/RTU. Standard för IQHeat är: Adress 1 (ett), 9600bps, ingen paritet och en stopp bit, utan terminering. Man kan även komma åt ModBus/IP genom det inbyggda Ethernetgränssnittet. För ModBus/IP använder man Port 502 och reglerenheten kommer antingen att få en egen IPadress eller så sätter man själv en förutbestämd adress. ModBus/RTU använder en seriell kommunikation med en sändare och möjlighet till flera lyssnare, där lyssnarna ska ha unika adresser. Kablar för anslutning bör vara som minst AWG22 (0,33mm 2 ) och förslagsvis två partvinnade par där ett par ansluts till REF/Jord för att försäkra att spänningspotentialen bibehålls. Det andra paret ska då anslutas till A+ respektive B. Kablarna ska termineras i var ände för att signaleringen ska fungera på bästa sätt. Siemens Climatix har ett inbyggt termineringsmotstånd på 120 Ω. Om endast två noder ska användas på bussen så kontrollera om även hårdvaran i andra änden har terminering inbyggd annars bör ett 120 Ω motstånd anslutas mellan A+ och B. Detta gör man för att undvika reflektioner av signalen i ändarna av kabeln. För annan topologi på bussen bör kabeln bara termineras i ändarna av signalkabeln och avstick bör göras så korta som möjligt och utan terminering. Anledningen till detta är att specifikationen för TIAEIA485A specificerar endast en databuss per drivande transmitter. Se figur nedan. DATA IN R T = 120 Ω A+ IQHeat RS485 Siemens Climatix R T DATA IN B DATA UT DATA UT Transeiver A REF Transeiver B Håll så kort som möjligt Ingen terminering DATA UT Receiver C Figur 1 Principskiss för kommunikation via RS485/RTU Alfa Laval ModBus dokumentation Rev10 1

2 1.2 Variabler: Alla variabler som representerar mätvärden, börvärden och andra reella tal är i 16 bitars ord och presenteras i heltal. Det betyder att decimalvärden är multiplicerade med 10 eller 100 och bör alltså divideras med detta för att få sitt rätta värde. För att skriva ett sådant värde ska man alltså först multiplicera värdet med potensen innan man sänder det. Man kan bara skriva sådana värden i Holding Register. Observera även att de första utetemparaturerna i värmekurvan är negativa. För binära variabler kan motsvarande endast data skrivas till Coil status. Se fullständig lista på variabler och dimmensioner längre fram i tabell. Den första variabeln av varje typ i dessa listor börjar på nummer ett. En del ModBusprogram börjar att räkna från noll. Adresser över 1000 ska inte adresseras då detta genererar fel i kommunikationen och kommer då att avslutas. De adresser som används delas in i sex adressblock där liknande block har samma adressering. Därför kommer bara de första adressblocken av likvärdiga beskrivas nedan. Adress 199 Gemensamma funktioner i regleringen Adress Kylapplikation krets 1 Adress Kylapplikation krets 2 Adress Värmekrets 1 Adress Värmekrets 2 Adress Värmekrets 3 Adress Varmvattenkrets 1.3 Sammanfattande variabler: De mest använda variablerna för en värmekrets, en varmvattenkrets samt gemensamma data kommer att beskrivas under följande sidor. En listning av samtliga variabler kommer i avsnitt 1.4 och framåt med ingående detaljer för varje variabel. Driftkortet visar ett typfall med två värmekretsar och en tappvattenkrets. I driftkortet kan man även se hur variabelindexeringen ökar med 100 från Värmekrets 1 till Värmekrets 2 enligt beskrivningen ovan. Alfa Laval ModBus dokumentation Rev10 2

3 Värme1: Framledning Temperatur Framledning Givarfel Retur Temperatur Retur Givarfel Primär Retur Temperatur Primär Retur Givarfel Pumpindikering Pumplarm från pump Ställdon Primär Ställdon Sekundär Reglerfel, temperatur diff. Expansionskärlslarm, Digital in ExpansionskärlsTryck Använd Utetemp Rumsbörvärde Komfort Rumsbörvärde Ekonomi Värmekurva Ute1 (DUT) Värmekurva Fram1 Värmekurva Ute2 Värmekurva Fram2 Värmekurva Ute3 Värmekurva Fram3 Värmekurva Ute4 Värmekurva Fram4 Värmekurva Ute5 Värmekurva Fram5 Värmekurva Mintemp Värmekurva Maxtemp Använt börvärde Referensgivare1 Värde Referensgivare1 Fel Referensgivare2 Värde Referensgivare2 Fel Referensgivare3 Värde Referensgivare3 Givarfel Kyla: Framledning Temperatur Framledning Givarfel Retur Temperatur Retur Givarfel Primär Retur Temperatur Primär Retur Givarfel Pumpindikering Pumplarm från pump Ställdon Primär Ställdon Sekundär I450 S450 I451 S451 I452 S452 S492 S430 I498 I499 S445 S435 I474 I H420 H421 H425 H427 I436 H436 I437 H437 I438 H438 H426 H428 H433 H434 I420 I457 S457 I458 S458 I459 S459 I150 S150 I151 S151 I152 S152 S192 S130 I198 I199 Reglerfel, temperatur diff. Expansionskärlslarm Expansionskärlstryck Expansionskärlstryck larm Konstanttemperatur Bör Värmekurva Ute1(DUT) Värmekurva Fram1 Värmekurva Ute2 Värmekurva Fram2 Värmekurva Mintemp Värmekurva Maxtemp Använt börvärde Använd kylenergi MBus Använd volym MBus Varmvatten: Framledning Temperatur Framledning Givarfel Retur Temperatur Retur Givarfel Pumpindikering Reglerfel, temperatur diff. Varmvatten Börvärde Norm Varmvatten Börvärde Reduc Varmvatten Legionellatemp Ställdon Primär Ställdon Sekundär Allmänt/gemensamt: Primär Tillopp Temp Primär Tillopp Givarfel Primär Retur Temperatur Primär Retur Givarfel Utegivare Temperatur Utegivare Givarfel Vindgivare Värde Vindgivare Givarfel Externt summalarm Nollställ larm Primärflöde MBus Effektuttag MBus Använd energi MBus Använd volym MBus S145 S135 I174 S174 H120 H121 H123 H122 H124 H125 H126 I120 I166 I165 I850 S850 I851 S851 S891 S845 H820 H822 H826 I890 I897 I51 S51 I52 S52 I50 S50 I71 S71 S31 C1 I60 I61 I62 I65 Alfa Laval ModBus dokumentation Rev10 3

4 Ställdon1 [I498] Krets 1 Utegivare [I50 : S50] Vindgivare [I71 : S71] Ställdon2 [I499] Tillopp [I450 : S450] Exp.Larm [S435] Tryck [I474] PIA Referensgivare Kr1:1 [I457 : S457] Ställdon1 [I598] Prim. Retur [I452 : S452] Krets 2 Retur [I451 : S451] Pump Drift [S492] Pump Larm [S430] Referensgivare Kr1:2 [I458 : S458] Referensgivare Kr1:3 [I459 : S459] Ställdon2 [I599] Tillopp [I550 : S550] Exp.Larm [S535] Tryck [I574] PIA Prim. Retur [I552 : S552] Retur [I551 : S551] Pump Drift [S592] Pump Larm [S530] Primär In [I51 : S51] Ställdon1 [I890] Varmvattenkrets Varmvatten [I850 : S850] VVC Pump Drift [I891] Primär Retur [I52 : S52] Ställdon2 [I897] VVC [I851 : S851] Rev.nr. Ändring: Datum: Sign: ModBusvariabler Konstr: SERORKP Datum: Datum: Projekt: Granskad: Datum: Anl.nr.: Ort: Godkänd: Datum: Rit.nr.: Kund: System: Cetetherm IQHeat110 2stegskoppling App.Skåp: Sid: 1 Forts: Alfa Laval ModBus dokumentation Rev10

5 1.4 Coil status Table of coil states Adress Description Values /Units Remarks Common Present value 0x0001 Alarm acknowledge 01 No*Execute 0x0002 Reset outs.temp. 01 No*Execute 0x0009 Reset energy meter partial 01 No*Execute Tracking value inputs 0x0010 Su/Wi switch 01 Winter*Summer 0x0011 Auxiliary alarm 01 Normal*Active Precontroller Present value Tracking value inputs 0x0110 Heat demand PC 01 No*Yes Heating circuit HC (04xx=HC 1, 05xx= HC 2, 06xx=HC 3) Present value Tracking value 0x0410 Heat demand / Thermostat HC1 01 NoHeat*Heat 0x0510 Heat demand / Thermostat HC2 01 NoHeat*Heat 0x0610 Heat demand / Thermostat HC3 01 NoHeat*Heat Domestic hot water Present value 0x0801 Start charging DW 01 No*Execute Tracking value inputs 0x0810 Flow switch DW 01 Passive*Active Alfa Laval ModBus dokumentation Rev10 5

6 1.5 Input states Table of input states Address Description Values /Units Remarks Common Present value status 1x0001 Alarm class Danger alarm (A) status 01 Normal*Alarm 1x0002 Alarm class Critical alarm (A) status 01 Normal*Alarm 1x0003 Alarm class Low alarm (B) status 01 Normal*Alarm 1x0004 Alarm class Warning alarm (C) status 01 Normal*Alarm Present value inputs 1x0010 Su/Wi switch 01 Winter*Summer 1x0011 Auxiliary alarm 01 Normal*Active Alarm value 1x0025 Plants manual Off 01 OK*Alarm 1x0030 IO handoperated 01 OK*Alarm 1x0031 Auxiliary alarm 01 OK*Alarm 1x0050 Outside temp. 01 OK*Alarm 1x0051 Main flow temp. 01 OK*Alarm 1x0052 Main return temp. 01 OK*Alarm 1x0053 Main delta temp. 01 OK*Alarm 1x0056 Auxiliary temp. 01 OK*Alarm 1x0060 Flow (heat meter) 01 OK*Alarm 1x0061 Power (heat meter) 01 OK*Alarm 1x0062 Cumul.energy (heat meter) 01 OK*Alarm 1x0063 Flow temperature (heat meter) 01 OK*Alarm 1x0064 Return temperature (heat meter) 01 OK*Alarm 1x0065 Cumul.volume (heat meter) 01 OK*Alarm 1x0070 Solar radiation 01 OK*Alarm 1x0071 Wind speed 01 OK*Alarm 1x0076 Auxiliary pressure 01 OK*Alarm 1x0079 Pulse lim.h.meter 01 OK*Alarm Present value outputs 1x0090 Heat demand output 01 Off*On 1x0091 Auxiliary output 01 Off*On Precontroller Present value inputs 1x0110 Heat demand PC 01 No*Yes Alarm value 1x0120 Water frost (PC) 01 Normal*Alarm 1x0125 Manual Off PC 01 OK*Alarm 1x0130 Pump PC 01 OK*Alarm 1x0131 Pump 2 PC 01 OK*Alarm 1x0132 Pump feedback PC 01 OK*Alarm 1x0133 Pump 2 feedback PC 01 OK*Alarm Alfa Laval ModBus dokumentation Rev10 6

7 Input states, continued Table of input states, Address Description Values /Units Precontroller Remarks Alarm value 1x0135 Alarm exp.vessel PC 01 OK*Alarm 1x0145 Dev.fl.t.sec.PC 01 OK*Alarm 1x0146 Dev.rt.t.diff.PC 01 OK*Alarm 1x0150 Flow temp.sec.pc 01 OK*Alarm 1x0151 Rt.temp.sec.PC 01 OK*Alarm 1x0152 Rt.temp.prim.PC 01 OK*Alarm 1x0157 Reference 1 PC 01 OK*Alarm 1x0158 Reference 2 PC 01 OK*Alarm 1x0159 Reference 3 PC 01 OK*Alarm 1x0160 Flow PC 01 OK*Alarm 1x0161 Power PC 01 OK*Alarm 1x0162 Cum.energy PC 01 OK*Alarm 1x0163 Fl.temp.H.met.PC 01 OK*Alarm 1x0164 Rt.temp H.met.PC 01 OK*Alarm 1x0165 Cumulat.volume PC 01 OK*Alarm 1x0166 Cum.cool energy PC 01 OK*Alarm 1x0170 Fl.press.sec.PC 01 OK*Alarm 1x0171 Rt.press.sec.PC 01 OK*Alarm 1x0172 Fl.press.prim.PC 01 OK*Alarm 1x0173 Rt.press.prim.PC 01 OK*Alarm 1x0174 Press.exp.vessel PC 01 OK*Alarm 1x0175 Signal H.dem.PC 01 OK*Alarm 1x0176 Ext.signal heat.dem. PC 01 OK*Alarm Present value outputs 1x0190 Com.refilling PC 01 Off*On 1x0191 Com.bypass PC 01 Off*On 1x0192 Command pump PC 01 Off*On 1x0193 Command pump 2 PC 01 Off*On Heating circuit HC (04xx=HC 1, 05xx=HC 2, 06xx=HC 3) Present value inputs 1x0410 Heat demand / Thermostat HC1 01 NoHeat*Heat 1x0510 Heat demand / Thermostat HC2 01 NoHeat*Heat 1x0610 Heat demand / Thermostat HC3 01 NoHeat*Heat Alarm value 1x0420 Water frost HC1 01 OK*Alarm 1x0421 Building frost HC1 01 OK*Alarm 1x0425 Manual Off HC1 01 OK*Alarm 1x0430 Pump HC1 01 OK*Alarm 1x0431 Pump 2 HC1 01 OK*Alarm 1x0432 Pump feedback HC1 01 OK*Alarm 1x0433 Pump 2 feedback HC1 01 OK*Alarm 1x0435 Alarm exp.vessel HC1 01 OK*Alarm Alfa Laval ModBus dokumentation Rev10 7

8 Input states, continued Table of input states, Address Description Values /Units Remarks Heating circuit HC (04xx=HC 1, 05xx=HC 2, 06xx=HC 3) 1x0445 Dev.fl.temp.HC1 01 OK*Alarm 1x0545 Dev.fl.temp.HC2 01 OK*Alarm 1x0645 Dev.fl.temp.HC3 01 OK*Alarm 1x0446 Dev.rt.temp.HC1 01 OK*Alarm 1x0447 Dev.room.temp.HC1 01 OK*Alarm 1x0449 Rt.temp.diff.HC1 01 OK*Alarm 1x0450 Flow temp.hc1 01 OK*Alarm 1x0451 Return temp.hc1 01 OK*Alarm 1x0452 Return temp.prim.hc1 01 OK*Alarm 1x0453 Room temp.hc1 01 OK*Alarm 1x0454 Room temp.2 HC1 01 OK*Alarm 1x0455 Room unit temp.hc1 01 OK*Alarm 1x0457 Reference 1 HC1 01 OK*Alarm 1x0458 Reference 2 HC1 01 OK*Alarm 1x0459 Reference 3 HC1 01 OK*Alarm 1x0474 Press.exp.vessel HC1 01 OK*Alarm 1x0474 Signal h.dem. HC1 01 OK*Alarm 1x0474 Signal h.dem. HC1 01 OK*Alarm Present value outputs 1x0492 Command pump HC1 01 Off*On 1x0493 Command pump 2 HC1 01 Off*On Alfa Laval ModBus dokumentation Rev10 8

9 Input states, continued Table of input states, Address Description Values /Units Domestic hot water Present value inputs Remarks 1x0810 Flow switch DW 01 Passive*Active Alarm value 1x0820 Water frost DW 01 OK*Alarm 1x0825 Manual Off DW 01 OK*Alarm 1x0827 Charge failure DW 01 OK*Alarm 1x0828 Legion.failure (DW) 01 OK*Alarm 1x0830 Circ.pump DW 01 OK*Alarm 1x0831 Charge pump DW 01 OK*Alarm 1x0832 Charge pump 2 DW 01 OK*Alarm 1x0833 Primary pump DW 01 OK*Alarm 1x0834 Primary pump 2 DW 01 OK*Alarm 1x0835 Circ.pump feedback DW 01 OK*Alarm 1x0836 Charge pump feedback DW 01 OK*Alarm 1x0837 Charge pump 2 feedback DW 01 OK*Alarm 1x0838 Primary pump feedback DW 01 OK*Alarm 1x0839 Primary pump 2 feedback DW 01 OK*Alarm 1x0845 Dev.fl.temp.DW 01 OK*Alarm 1x0846 Dev.fl.t.prim.DW 01 OK*Alarm 1x0850 Flow temp.dw 01 OK*Alarm 1x0851 Circ.temp.DW 01 OK*Alarm 1x0852 Tank temp.bot.dw 01 OK*Alarm 1x0853 Tank temp.top DW 01 OK*Alarm 1x0854 Flow temp.prim.dw 01 OK*Alarm 1x0855 Rt.temp.prim.DW 01 OK*Alarm 1x0856 Flow temp.sec.ctrl DW 01 OK*Alarm Present value outputs 1x0891 Com.circ.pump DW 01 Off*On 1x0892 Com.char.pump DW 01 Off*On 1x0893 Com.char.pump 2 DW 01 Off*On 1x0894 Com.prim.pump DW 01 Off*On 1x0895 Com.prim.pump 2 DW 01 Off*On 1x0896 Com.el.imm.h.DW 01 Off*On Alfa Laval ModBus dokumentation Rev10 9

10 1.6 Input register Input register table Address Description Values /Units Common Remarks 3x0001 Main operating mode 03 Off*BuildProt*Economy *Comfort 0=Off 1=BuildProt 2=Economy 3=Comfort 3x0002 Main operating state 0=?? (not used) 1=Alarm 2=Man 3=Su/WiSwitch 4=?? (not used) 5=Man 6=RoomUn 7=Su/WiCal 8=Su/WiECO 9=Com 10=?? (not used) 11=LocalTS 12=NoTS 012??*Alarm*Man*Su/WiSwitch*??*Man*RoomUn* u/wical*su/wieco*com*??* LocalTS*NoTS 3x0003 Command time sch. 02 BuildProt*Economy*Comfort 3x0005 Plants manual Off 01 No*Yes 3x0009 Heat demand 01 Passive*Active Alfa Laval ModBus dokumentation Rev10 10

11 Input register table, Input register, continued Address Description Values /Units Common, General status bitwise Remarks 3x0011 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 General status (Word 1) Acknowledgement Su/Wi switch Alarm acknowledge com Heat demand PC Heat demand / Thermostat HC1 Heat demand / Thermostat HC2 Heat demand / Thermostat HC3 Flow switch DW Unsigned Word for each bit or counted binary to a decimal number 3x0012 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 3x0013 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 General status (Word 2) Heat demand output Auxiliary output Command pump PC Command pump 2 PC Com.refilling PC Com.bypass PC General status (Word 3) Command pump HC1 Command pump HC2 Command pump HC3 Command pump 2 HC1 Command pump 2 HC2 Command pump 2 HC for each bit or counted binary to a decimal number for each bit or counted binary to a decimal number Alfa Laval ModBus dokumentation Rev10 11

12 Input register, continued Input register table, Address Description Values /Units Common, General status bitwise Remarks 3x0014 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 General status (Word 4) Com.char.pump DW Com.char.pump 2 DW Com.prim.pump DW Com.prim r.pump 2 DW Com.circ.pump DW Unsigned Word for each bit or counted binary to a decimal number 3x0015 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 3x0016 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Digital I/O (Word 1) Not implemented Digital I/O (Word 2) Not implemented for each bit or counted binary to a decimal number for each bit or counted binary to a decimal number Alfa Laval ModBus dokumentation Rev10 12

13 Input register, continued Input register table, Address Description Values /Units Common, General status bitwise Remarks 3x0017 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Unsigned Word Digital I/O(Word 3) Not implemented for each bit or counted binary to a decimal number 3x0018 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 3x0019 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Digital I/O (Word 4) Not implemented Alarms (Word 1) Alarm class Danger (A) active Alarm class Critical (A) active Alarm class Low (B) active Alarm class Warning (C) active IO in manual mode ECO Summer active Outdoor temp. fault Windspeed sensor fault Sun rad.sensor fault Main flowtemp. alarm Main return temp. alarm Aux.temp. alarm Aux.pressure alarm Common Heat meter fault Auxiliary alarm input Modbus comm. fault for each bit or counted binary to a decimal number for each bit or counted binary to a decimal number Alfa Laval ModBus dokumentation Rev10 13

14 Input register, continued Input register table, Address Description Values /Units Common, General status bitwise Remarks 3x0020 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Alarms (Word 2) HC1 Room temp. alarm HC1 Flow temp. alarm HC1 Return temp. alarm HC1 Return temp.primary alarm HC1 Heat demand fault HC1 Pump alarm HC1 Exp.vessel alarm HC1 Temp.deviation alarm HC2 Room temp. alarm HC2 Flow temp. alarm HC2 Return temp. alarm HC2 Return temp.primary alarm HC2 Heat demand fault HC2 Pump alarm HC2 Exp.vessel alarm HC2 Temp.deviation alarm Unsigned Word for each bit or counted binary to a decimal number 3x0021 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 3x0022 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Alarms (Word 3) HC3 Room temp. alarm HC3 Flow temp. alarm HC3 Return temp. alarm HC3 Return temp.primary alarm HC3 Heat demand fault HC3 Pump alarm HC3 Exp.vessel alarm HC3 Temp.deviation alarm PC Flow temp. alarm PC Return temp. alarm PC Return temp.primary alarm PC Pump alarm PC Pressure secondary alarm PC Pressure primary alarm PC Exp.vessel alarm Alarms (Word 4) PC Heat meter fault PC Temp.deviation alarm DW Flow temp. alarm DW Flow temp. sec.control alarm DW circulation temp. alarm DW tank bottom temp. alarm DW tank top temp. alarm DW Flow temp.primary alarm DW Return temp.primary alarm DW Circulation pump alarm DW Charging pump alarm DW Tra.pump alarm DW Temp.deviation alarm for each bit or counted binary to a decimal number for each bit or counted binary to a decimal number Alfa Laval ModBus dokumentation Rev10 14

15 Input register, continued Input register table, Address Description Values /Units Common, General status bitwise Remarks 3x0023 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Unsigned Word Active Alarms class 0 (A) (Word 1) Common and others PC HC1 HC2 HC3 DW for each bit or counted binary to a decimal number 3x0024 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 3x0025 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Active Alarms class 1 (A) (Word 2) Common and others PC HC1 HC2 HC3 DW Active Alarms class 2 (B) (Word 3) Common and others PC HC1 HC2 HC3 DW for each bit or counted binary to a decimal number for each bit or counted binary to a decimal number Alfa Laval ModBus dokumentation Rev10 15

16 Input register, continued Input register table, Address Description Values /Units Common, General status bitwise Remarks 3x0026 Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Unsigned Word Active Alarms class 3 (C) (Word 4) for each bit or counted binary to a decimal number Common and others PC HC1 HC2 HC3 DW Alfa Laval ModBus dokumentation Rev10 16

17 Input register, continued Input register table, Address Description Values /Units Remarks Common 3x0030 Auxiliary meter 1 KWh 0.0 x.y [KWh] (factor 10) 3x0031 Auxiliary meter 1 m3 0.0 x.y [m3] (factor 10) 3x0032 Auxiliary meter 1 MWh 0.0 x.y (factor 10) [MWh] 3x0033 Auxiliary meter 2 KWh 0.0 x.y [KWh] (factor 10) 3x0034 Auxiliary meter 2 m3 0.0 x.y [m3] (factor 10) 3x0035 Auxiliary meter 2 MWh 0.0 x.y (factor 10) [MWh] 3x0036 Auxiliary meter 3 KWh 0.0 x.y [KWh] (factor 10) 3x0037 Auxiliary meter 3 m3 0.0 x.y [m3] (factor 10) 3x0038 Auxiliary meter 3 MWh 0.0 x.y (factor 10) [MWh] 3x0039 Auxiliary meter 4 KWh 0.0 x.y [KWh] (factor 10) 3x0040 Auxiliary meter 4 m3 0.0 x.y [m3] (factor 10) 3x0041 Auxiliary meter 4 MWh 0.0 x.y [MWh] (factor 10) Present value, Signed Word 3x0042 Heat demand value 0 x [ C] 3x0048 Outs.temp.filtred x.y +x.y [ C] (factor 10) 3x0049 Outs.t.Su/Wi filt. x.y +x.y [ C] (factor 10) 3x0050 Outside temp. x.y +x.y [ C] (factor 10) 3x0051 Main flow temp. x.y +x.y [ C] (factor 10) 3x0052 Main return temp. x.y +x.y [ C] (factor 10) 3x0053 Main delta temp. x.y +x.y [ C] (factor 10) 3x0056 Auxiliary temp. x.y +x.y [ C] (factor 10) 3x0060 Flow (Heat meter) 0 x,y [m3/h] (factor 10) 3x0061 Power (Heat meter) 0 x,y [kw] (factor 10) 3x0062 Cumul.energy (Heat meter) 0 x,y [MWh] (factor 10) 3x0063 Flow temperature (Heat meter) x.y +x.y [ C] (factor 10) 3x0064 Return temperature (Heat meter) x.y +x.y [ C] (factor 10) 3x0065 Cumul.volume (Heat meter) 0 x,y [m3] (factor 10) 3x0070 Solar radiation 0 x.y [W/m2] (factor 10) 3x0071 Wind speed 0 x.y [m/s] (factor 10) 3x0076 Auxiliary pressure 0 x [kpa] 3x0079 Pulse lim.h.meter [%] 3x0090 Signal heat demand [%] 3x0095 Energy act power 0 x,y W] (factor 10) 3x0096 Energy act power 0 x,y W] (factor 10) 3x0097 Energy total 0 x,y kwh] (factor 10) 3x0098 Energy partial 0 x,y kwh] (factor 10) 3x0099 Energy op.hours 0 x,y h] (factor 10) Alfa Laval ModBus dokumentation Rev10 17

18 Input register, continued Input register table, Address Description Values /Units Remarks Precontroller 3x0101 3x0102 Operating mode PC 0=Off 1=On Op.state PC 0=? (not used) 1=Alarm 2=Man 3=WFr 4=FixSetp 5=FixSetp+ECO 6=OutsTCrv 7=OutsTcrv+ECO 8=EmDem 9=HDem 10= Ovrrn 11=NoHdem 01 Off*On 011?*Alm*Man*WFr *FixSetp*FixSetp+ECO *OutsTCrv *OutsTCrv+ECO *EmDem*HDem *Ovrrn*NoHdem 3x0105 Manual Off PC 01 No*Yes 3x0111 Prio.pump PC 02 Off*Pump1*Pump2 3x0112 Mode pump PC 017 OSV*Service*??*?? 0=OSV 1=Service 2=?? (not used) 3=?? (not used) 4=Alarm 5=Forced 6=Timer 7=?? (not used) 8=Man 9=RmUn 10=?? (not used) 11=?? (not used) 12=?? (not used) 13=?? (not used) 14=Kick 15=Prog 16=TS 17=Off/Def *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off 3x0113 Mode pump 2 PC 017 Same as above. OSV*Service*??*?? *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off Alfa Laval ModBus dokumentation Rev10 18

19 Input register, continued Input register table, Address Description Values /Units Remarks Precontroller 3x0117 3x0119 Mode valve PC 0=OSV 1=Service 2=?? (not used) 3=?? (not used) 4=AlmClsd 5=Forced 6=MaxLim 7=MinLim 8=Man 9=RmUn 10=?? (not used) 11=?? (not used) 12=?? (not used) 13=?? (not used) 14=?? (not used) 15=Prog 16=TS 17=Clsd/Def Act.limitation PC 0=None 1=ReturnTemp 2=DRT 3=Flow 4=Power 5=CommonH.meter 6=CommonFlow 7=CommonPower 017 OSV*Serv*?*?*AlmClsd *Frcd*MaxLim*MinLim *Man*RmUn*?*?*?*?*? *Prog*TimeSch *Clsd/Def 07 None*ReturnTemp*DRT *Flow*Power *CommonH.meter *CommonFlow *CommonPower Alfa Laval ModBus dokumentation Rev10 19

20 Input register, continued Input register table, Address Description Values /Units Remarks Precontroller Present value, Signed Word 3x0120 Actual setpoint PC x.y +x.y [ C] (factor 10) 3x0122 Rt.temp.diff.PC x.y +x.y [ C] (factor 10) 3x0129 Act.limitation PC x.y +x.y [ C] (factor 10) 3x0150 Flow temp.sec.pc x.y +x.y [ C] (factor 10) 3x0151 Rt.temp.sec.PC x.y +x.y [ C] (factor 10) 3x0152 Rt.temp.prim.PC x.y +x.y [ C] (factor 10) 3x0157 Reference 1 PC x.y +x.y [ C/kPa] (factor 10) 3x0158 Reference 2 PC x.y +x.y [ C/kPa] (factor 10) 3x0159 Reference 3 PC x.y +x.y [ C/kPa] (factor 10) 3x0160 Flow PC 0 x,y [m3/h] (factor 10) 3x0161 Power PC 0 x,y [kw] (factor 10) 3x0162 Cum.energy PC 0 x,y [MWh] (factor 10) 3x0163 Fl.temp.H.met.PC x.y +x.y [ C] (factor 10) 3x0164 Rt.temp H.met.PC x.y +x.y [ C] (factor 10) 3x0165 Cumulat.volume PC 0 x,y [m3] (factor 10) 3x0166 Cum.Cooling.energy PC 0 x,y [MWh] (factor 10) 3x0170 Fl.press.sec.PC x.y x.y [kpa] 3x0171 Rt.press.sec.PC x.y x.y [kpa] 3x0172 Fl.press.prim.PC x.y x.y [kpa] 3x0173 Rt.temp.prim.PC x.y x.y [kpa] 3x0174 Press.exp.vessel PC x.y x.y [kpa] 3x0175 Signal H.dem.PC 0 x.y [ C] 3x0176 Ext.signal h.dem. PC 0 x.y [%] 3x0179 Volume refill PC 0 x.y [m3] (factor 10) Operating hours, Unsigned Word 3x0180 3pValve PC 0 x [h] 3x0181 3pValve 2 PC 0 x [h] 3x0182 Op.hrs.pump PC 0 x [h] 3x0190 Signal valve PC [%] 3x0192 Signal pump PC [%] 3x0193 Signal pump 2 PC [%] 3x0198 Signal valve 1 PC [%] 3x0199 Signal valve 2 PC [%] Alfa Laval ModBus dokumentation Rev10 20

21 Input register, continued Input register table, Address Description Values /Units Remarks Heating circuit HC (04xx=HC 1, 05xx=HC 2, 06xx=HCp 3) 3x0401 Operating mode HC1 0=Off 1=BuildProt 2=Economy 3=Comfort 03 Off*BuildProt*Economy *Comfort 3x0501 Operating mode HC2 03 Off*BuildProt*Economy *Comfort 3x0601 Operating mode HC3 03 Off*BuildProt*Economy 3x0402 Op.state HC1 0=? (not used) 1=Alarm 2=Man 3=Fr 4=BP 5=Sw 6=Dis 7=Man 8=sECO 9=QSb 10=dECO 11=RmL 12=Therm 13=Hdm 14=RmU 15=Com 16=Fix 17=Ovr 18=OSTP 19=LTS 20=CTS *Comfort 020?*A*Man*Fr*BP*Sw*Dis *Man*Com*sECO*QSb *deco*rml*thrm*hdm *RmU*Fix*Ovr*OSTP *LTS*CTS 3x0403 Command time sch. 02 BuildProt*Economy *Comfort 3x0404 Op.mode room u.hc1 03 Auto*Economy*Comfort *BuildProt 3x0405 Manual Off HC1 01 No*Yes Alfa Laval ModBus dokumentation Rev10 21

22 Input register, continued Input register table, Address Description Values /Units Remarks Heating circuit HC (04xx=HC 1, 05xx=HC 2, 06xx=HC 3) 3x0411 Prio.pump HC1 02 Off*Pump1*Pump2 3x0412 Mode pump HC1 017 OSV*Service*??*?? 0=OSV 1=Service 2=?? (not used) 3=?? (not used) 4=Alarm 5=Forced 6=Timer 7=?? (not used) 8=Man 9=RmUn 10=?? (not used) 11=?? (not used) 12=?? (not used) 13=?? (not used) 14=Kick 15=Prog 16=TS 17=Off/Def *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off 3x0413 Mode pump 2 HC1 017 Same as above. 3x0417 Mode valve HC1 0=OSV 1=Service 2=?? (not used) 3=?? (not used) 4=AlmClsd 5=Forced 6=MaxLim 7=MinLim 8=Man 9=RmUn 10=?? (not used) 11=?? (not used) 12=?? (not used) 13=?? (not used) 14=?? (not used) 15=Prog 16=TS 17=Clsd/Def OSV*Service*??*?? *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off 017 OSV*Serv*?*?*AlmClsd *Frcd*MaxLim*MinLim *Man*RmUn*?*?*?*?*? *Prog*TimeSch *Clsd/Def 3x0418 Mode setpoint HC1 0=Off 1=FlTempHighLim 2=FlTempLowLim 3=Limitations 4=FlTempIncrLim 5=Demand 6=Heatcurve 06 Off*FlTempHighLim *FlTempLowLim *Limitations *FlTempIncrLim. *Demand *HeatCurve Alfa Laval ModBus dokumentation Rev10 22

23 Input register, continued Input register table, Address Description Values /Units Remarks Heating circuit HC (04xx=HC 1, 05xx=HC 2, 06xx=HC 3) 3x0419 Act.limitation HC1 0=None 1=ReturnTemp 2=CommonH.meter 3=CommonFlow 4=CommonPower 5=DRT 6=DW Valve 06 None*ReturnTemp *CommonHeatmeter *CommonFlow *CommonPower *DRT*DW Valve Present value, Signed Word 3x0420 Act.fl.t.setp.HC1 x.y +x.y [ C] (factor 10) 3x0421 Act.fl.t.setp.HC1 x.y +x.y [ C] (factor 10) 3x0422 Base outs.t.h.curve HC1 x.y +x.y [ C] (factor 10) 3x0423 Breakp.outs.t.h.curve HC1 x.y +x.y [ C] (factor 10) 3x0424 Breakp.fl.t.H.curve HC1 x.y +x.y [ C] (factor 10) 3x0425 Act.room setp.hc1 x.y +x.y [ C] (factor 10) 3x0426 Act.room temp.hc1 x.y +x.y [ C] (factor 10) 3x0429 Act.limitation HC1 x.y +x.y [ C] (factor 10) 3x0436 SP Outs.t.Y3.h curve HC1 x.y +x.y [ C] (factor 10) 3x0437 SP Outs.t.Y4.h curve HC1 x.y +x.y [ C] (factor 10) 3x0438 SP Outs.t.Y5.h curve HC1 x.y +x.y [ C] (factor 10) 3x0449 Rt.temp.diff.HC1 x.y +x.y [ C] (factor 10) 3x0450 Flow temp.hc1 x.y +x.y [ C] (factor 10) 3x0451 Return temp.hc1 x.y +x.y [ C] (factor 10) 3x0452 Rt.temp.prim.HC1 x.y +x.y [ C] (factor 10) 3x0453 Room temp.hc1 x.y +x.y [ C] (factor 10) 3x0454 Room temp.2 HC1 x.y +x.y [ C] (factor 10) 3x0455 Room unit temp.hc1 x.y +x.y [ C] (factor 10) 3x0457 Reference 1 HC1 x.y +x.y [ C/kPa] (factor 10) 3x0458 Reference 2 HC1 x.y +x.y [ C/kPa] (factor 10) 3x0459 Reference 3 HC1 x.y +x.y [ C/kPa] (factor 10) 3x0474 Press.exp.vessel HC1 x.y +x.y [kpa] 3x0475 Signal h.dem.hc1 x.y +x.y [ C] 3x0476 Signal h.dem.hc1 x.y +x.y [%] Operating hours, Unsigned Word 3x0480 3pValve HC1 0 x [h] 3x0482 Op.hrs.pump HC1 0 x [h] 3x0490 Signal valve HC [%] 3x0492 Signal pump HC [%] 3x0493 Signal pump 2 HC [%] 3x0498 Signal valve 1 HC [%] 3x0499 Signal valve 2 HC [%] Alfa Laval ModBus dokumentation Rev10 23

24 Input register, continued Input register table, Address Description Values /Units Remarks Domestic hot water 3x0801 Operating mode DW 0=Off 1=Protection 2=Reduced 3=Normal 03 Off*Protection*Reduced *Normal 3x0901 Operating mode DW2 03 Off*Protection*Reduced 3x0802 Op.state DW 0=? (not used) 1=Alarm 2=Man 3=WFrost 4=Flow 5=EChMan 6=EChLeg 7=ECh 8=ChMan 9=ChLeg 10=Ch 11=Man 12=Com 13=Fix 14=LclTS 15=CmnTS *Normal 015?*Alm*Man*WFrost *Flow*EChMan*EChLeg *ECh*ChMan*ChLeg*Ch *Man*Com*Fix*LclTS *CmnTS 3x0803 Command time sch. DW 02 PlantProt*Reduced *Normal 3x0804 T.schedule circ.p. DW 01 Off*On 3x0805 Manual Off DW 01 No*Yes 3x0810 Mode circ.pump DW 017 OSV*Service*??*?? 0=OSV 1=Service 2=?? (not used) 3=?? (not used) 4=Alarm 5=Forced 6=Timer 7=?? (not used) 8=Man 9=RmUn 10=?? (not used) 11=?? (not used) 12=?? (not used) 13=?? (not used) 14=Kick 15=Prog 16=TS 17=Off/Def *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off Alfa Laval ModBus dokumentation Rev10 24

25 Input register, continued Input register table, Address Description Values /Units Remarks Domestic hot water 3x0811 Prio.char.pump DW 02 Off*Pump1*Pump2 3x0812 Mode char.pump DW 017 Same as above. 0=OSV 1=Service 2=?? (not used) 3=?? (not used) 4=Alarm 5=Forced 6=Timer 7=?? (not used) 8=Man 9=RmUn 10=?? (not used) 11=?? (not used) 12=?? (not used) 13=?? (not used) 14=Kick 15=Prog 16=TS 17=Off/Def OSV*Service*??*?? *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off 3x0813 Mode char.p.2 DW 017 Same as above. OSV*Service*??*?? *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off 3x0814 Prio.prim.pump DW 02 Off*Pump1*Pump2 3x0815 Mode prim.pump DW 017 Same as above. OSV*Service*??*?? *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off 3x0816 Mode prim.p.2 DW 017 Same as above. 3x0817 3x0818 Mode valve DW Mode sec. valve DW 0=OSV 1=Service 2=?? (not used) 3=?? (not used) 4=AlmClsd 5=Forced 6=MaxLim 7=MinLim 8=Man 9=RmUn 10=?? (not used) 11=?? (not used) 12=?? (not used) 13=?? (not used) 14=?? (not used) 15=Prog 16=TS 17=Clsd/Def Input register, continued OSV*Service*??*?? *Alarm*Forced*Timer*?? *Man*RmUn*??*??*?? *??*Kick*Prog*TS*Off OSV*Serv*?*?*AlmClsd *Frcd*MaxLim*MinLim *Man*RmUn*?*?*?*?*? *Prog*TimeSch *Clsd/Def Alfa Laval ModBus dokumentation Rev10 25

26 Input register table, Address Description Values /Units Remarks Domestic hot water 3x0819 Act.limitation DW 0=None 1=ReturnTemp 2=CommonH.meter 3=CommonFlow 4=CommonPower 04 None*ReturnTemp *CommonHeatmeter *CommonFlow *CommonPower Present value, Signed Word 3x0820 Act.Fl.t.setp.DW x.y +x.y [ C] (factor 10) 3x0829 Act.limitation DW x.y +x.y [ C] (factor 10) 3x0840 Remain.legion.int. DW 0 x.y [Days] 3x0850 Flow temp.dw x.y +x.y [ C] (factor 10) 3x0851 Circ.temp.DW x.y +x.y [ C] (factor 10) 3x0852 Tank temp.bot.dw x.y +x.y [ C] (factor 10) 3x0853 Tank temp.top DW x.y +x.y [ C] (factor 10) 3x0853 Flow temp.prim.dw x.y +x.y [ C] (factor 10) 3x0855 Rt.temp.prim.DW x.y +x.y [ C] (factor 10) 3x0856 Flow temp.sec.ctrl DW x.y +x.y [ C] (factor 10) Operating hours, Unsigned Word 3x0880 3pValve DW 0 x [h] 3x0882 Op.hrs.ch.pump DW 0 x [h] 3x0883 Op.hrs.prim.p.DW 0 x [h] 3x0890 Signal valve DW [%] 3x0891 Sign.circ.pump DW [%] 3x0892 Sign.char.pump DW [%] 3x0893 Sign.char.p.2 DW [%] 3x0894 Sign.prim.pump DW [%] 3x0895 Sign.prim.p.2 DW [%] 3x0897 Signal valve sec.dw [%] 3x0898 Signal valve 1 DW [%] 3x0899 Signal valve 2 DW [%] Alfa Laval ModBus dokumentation Rev10 26

27 1.7 Holding register Holding register table Address Description Values /Units Remarks Common 4x0001 Op.mode from comm. 03 Auto*BuildProt*Economy*Comfort 0=Auto 1=BuildProt 2=Economy 3=Comfort 4x0002 Manual operation 03 Auto*BuildProt*Economy*Comfort 4x0003 Op.mode room unit 03 Auto*BuildProt*Economy*Comfort 4x0005 Manual Off 01 No*Yes 4x0006 Hperiod start day 031 4x0007 Hperiod st.month 012 4x0008 Hperiod end day 031 4x0009 Hperiod end month 012 4x0011 Control bits Common, General status bitwise Unsigned Word Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 Alarm acknowledge Season summer Almax Demand PC Demand PC2 Demand PC3 Demand HC1 Demand HC2 Demand HC3 Demand HC4 Common I/O I/O I/O I/O I/O Present value, Signed Word 4x0015 SP Kick st.by time 0 x [h] 4x0018 SP Build.time const. 0 x [h] 4x0019 SP Su/Wi time const. 0 x [h] 4x0020 SP Heating limit x.y +x.y [ C] (factor 10) 4x0021 SP Build.protection x.y +x.y [ C] (factor 10) 4x0022 SP Room t.diff.build.frost x.y +x.y [K] (factor 10) 4x0023 SP Plant frost x.y +x.y [ C] (factor 10) 4x0024 SP Max.lim.rt.t.leg. x.y +x.y [ C] (factor 10) 4x0025 SP Max.lim.rt.t.DW x.y +x.y [ C] (factor 10) 4x0026 SP Max.lim.rt.t.red. x.y +x.y [ C] (factor 10) Alfa Laval ModBus dokumentation Rev10 27

28 Holding register, continued Holding register table, Address Description Values /Units Remarks Common Present value, Signed Word 4x0030 Setp.flow limit. 0.0 x.y m3/h] (factor 10) 4x0031 SP Power limit. 0.0 x.y [kw] (factor 10) 4x0032 SP Outs.t.low rt.t.lim. x.y +x.y [ C] (factor 10) 4x0033 SP Outs.t.high rt.t.lim. x.y +x.y [ C] (factor 10) 4x0034 SP Temp low rt.t.lim. x.y +x.y [ C] (factor 10) 4x0035 Sp Temp.high rt.t.lim. x.y +x.y [ C] (factor 10) 4x0040 SP Start aux.output 0.00 x.yy [h] (factor 10) 4x0041 SP Runtime aux.outp x.yy [h] (factor 10) Tracking value, Signed Word 4x0050 Outside temp. x.y +x.y [ C] (factor 10) 4x0070 Solar radiation 0 +x.y [W/m2] (factor 10) 4x0071 Wind speed 0 +x.y [m/s] (factor 10) Loop and cascade controller settings X Controller Gain x.yy +x.yy (factor 100), Signed Word X Controller Integral 0 x [s] Unsigned Word X Controller Differential 0 x [s] Unsigned Word 4x0080 Control flow lim x.yy +x.yy (factor 100), Gain 4x0081 Control flow lim 0 x [s] Integral 4x0082 Control flow lim 0 x [s] Differential 4x0083 Control pow.lim. x.yy +x.yy (factor 100), Gain 4x0084 Control pow.lim. 0 x [s] Integral 4x0085 Control pow.lim. 0 x [s] Differential Alfa Laval ModBus dokumentation Rev10 28

29 Holding register, continued Holding register table, Address Description Values /Units Remarks Precontroller 4x0105 Manual Off PC 01 No*Yes Present value, Signed Word 4x0110 SP Pump fix PC [%] 4x0111 SP Pump pressure PC 0 x [kpa] 4x0113 Change interval pump PC x x [h] 4x0119 Valve range big PC [%] 4x0120 SP Fl.t.SP h.dem.pc x.y +x.y [ C] (factor 10) 4x0121 SP Outs.t.low h'dem.pc x.y +x.y [ C] (factor 10) 4x0122 SP Outs.t.high h'dem.pc x.y +x.y [ C] (factor 10) 4x0123 SP Fl.t.low h'dem.pc x.y +x.y [ C] (factor 10) 4x0124 SP Fl.t.high h'dem.pc x.y +x.y [ C] (factor 10) 4x0125 SP Fl.t.min.lim.h'dem.PC x.y +x.y [ C] (factor 10) 4x0126 SP Fl.t.max.lim.h'dem.PC x.y +x.y [ C] (factor 10) 4x0127 SP Lim.rt.temp.diff.PC x.y +x.y [ C] (factor 10) 4x0128 SP Lim.flow PC 0 x.y [m3/h] (factor 10) 4x0129 SP Power lim.pc 0 x.y [kw] (factor 10) 4x0130 SP Press.low refill PC 0 x.y [kpa] (factor 10) 4x0131 SP Press.high refill PC 0 x.y [kpa] (factor 10) 4x0140 Heat dem.max.comp.pc 0 x.y [ C] 4x0141 Head dem.inc.start PC 0 x.y [%] 4x0142 SP boost h.dem.pc 0 x.y [ C] (factor 10) 4x0145 SP Max.dev.fl.t.sec.PC 0 x.y [ C] (factor 10) 4x0146 SP Max.dev.rt.t.diff.PC 0 x.y [ C] (factor 10) Tracking value, Signed Word 4x0175 0x2203 'PC\Inp.HDmdInA' x.y +x.y [ C] (factor 10) Loop and cascade controller settings X Controller Gain x.yy +x.yy (factor 100), Signed Word X Controller Integral 0 x [s] Unsigned Word X Controller Differential 0 x [s] Unsigned Word 4x0180 Control valve PC x.yy +x.yy (factor 100), Gain 4x0181 Control valve PC 0 x [s] Integral 4x0182 Control valve PC 0 x [s] Differential 4x0183 Control pump PC x.yy +x.yy (factor 100), Gain 4x0184 Control pump PC 0 x [s] Integral 4x0185 Control pump PC 0 x [s] Differential 4x0186 Contr.rt.temp.lim. PC x.yy +x.yy (factor 100), Gain 4x0187 Contr.rt.temp.lim. PC 0 x [s] Integral 4x0188 Contr.rt.temp.lim. PC 0 x [s] Differential 4x0189 Contr.rt.t.d.lim. PC x.yy +x.yy (factor 100), Gain 4x0190 Contr.rt.t.d.lim. PC 0 x [s] Integral 4x0191 Contr.rt.t.d.lim. PC 0 x [s] Differential 4x0192 Control flow lim. PC x.yy +x.yy (factor 100), Gain 4x0193 Control flow lim. PC 0 x [s] Integral 4x0194 Control flow lim. PC 0 x [s] Differential 4x0195 Control pow.lim. PC x.yy +x.yy (factor 100), Gain 4x0196 Control pow.lim. PC 0 x [s] Integral 4x0197 Control pow.lim. PC 0 x [s] Differential Alfa Laval ModBus dokumentation Rev10 29

30 Holding register, continued Holding register table, Address Description Values /Units Remarks Heating circuit HC (04xx=HC 1, 05xx=HC 2, 06xx=HC 3) 4x0401 Op.mode comm.hc1 03 Auto*BuildProt*Economy 0=Auto 1=BuildProt 2=Economy 3=Comfort *Comfort 4x0501 Op.mode comm.hc2 03 Auto*BuildProt*Economy *Comfort 4x0601 Op.mode comm.hc3 03 Auto*BuildProt*Economy *Comfort 4x0402 Manual operation HC1 03 Auto*BuildProt*Economy *Comfort 4x0405 Manual Off HC1 01 No*Yes 4x0406 Select room t.hc1 04 RoomSens*RoomUnit *Minimum*Maximum*Average 4x0407 Dis.sign.producer 01 No*Yes Present value, Signed Word 4x0410 SP Pump DW [%] 4x0413 Change interval pump HC1 x x [h] 4x0419 Valve range big HC1 x x [%] 4x0420 SP Room temp.comf.hc1 x.y +x.y [ C] (factor 10) 4x0421 SP Room temp.eco.hc1 x.y +x.y [ C] (factor 10) 4x0422 SP Shift room.t.comf.hc1 x.y +x.y [ C] (factor 10) 4x0423 SP Shift room.t.eco.hc1 x.y +x.y [ C] (factor 10) 4x0424 SP Room influence HC [%] 4x0425 SP Outs.t.design HC1 x.y +x.y [ C] (factor 10) 4x0426 SP Outs.t.high h'curve HC1 x.y +x.y [ C] (factor 10) 4x0427 SP Fl.t.design.h'curve HC1 x.y +x.y [ C] (factor 10) 4x0428 SP Fl.t.high h'curve HC1 x.y +x.y [ C] (factor 10) 4x0429 SP Fl.temp.shift HC1 x.y +x.y [ C] (factor 10) 4x0430 Sp Radiator expon.hc1 0 x.y (factor 10) 4x0431 SP Sol.rad.nominal HC1 0.0 x.y [K] (factor 10) 4x0432 SP W.speed nominal HC1 0.0 x.y [K] (factor 10) 4x0433 SP Fl.temp.min.HC1 x.y +x.y [ C] (factor 10) 4x0434 SP Fl.temp.max.HC1 x.y +x.y [ C] (factor 10) 4x0435 SP Fl.t.fixed HC1 x.y +x.y [ C] (factor 10) 4x0436 SP Fl.t.Y3.h'curve HC1 x.y +x.y [ C] (factor 10) 4x0437 SP Fl.t.Y4.h'curve HC1 x.y +x.y [ C] (factor 10) 4x0438 SP Fl.t.Y5.h'curve HC1 x.y +x.y [ C] (factor 10) 4x0439 Room temp.adj HC1 x.y +x.y [ C] (factor 10) 4x0440 Heat dem.max.comp.hc1 x.y +x.y [ C] (factor 10) 4x0441 Head dem.inc.start HC1 x.y +x.y [%] (factor 10) 4x0442 SP boost h.dem.hc1 0 x.y [ C] (factor 10) 4x0443 SP Room.t.diff.max.HC1 0 x.y [ C] (factor 10) 4x0444 Head dem.dec.start HC1 0 x.y [ %] (factor 10) 4x0445 SP Max.dev.fl.t.HC1 0 x.y [ C] (factor 10) 4x0446 SP Rt.t.max.dev.HC1 0 x.y [ C] (factor 10) 4x0447 SP Room.t.max.dev.HC1 0 x.y [ C] (factor 10) 4x0448 Heating limit(eco) HC1 0 x.y [ C] (factor 10) 4x0449 SP Lim.rt.temp.diff.HC1 0 x.y [ C] (factor 10) 4x0450 SP Outs.t.X3 HC1 0 x.y [ C] (factor 10) Alfa Laval ModBus dokumentation Rev10 30

31 Address Description Values /Units Remarks Heating circuit HC (04xx=HC 1, 05xx=HC 2, 06xx=HC 3) 4x0451 SP Outs.t.X4 HC1 0 x.y [ C] (factor 10) 4x0452 SP Outs.t.X5 HC1 0 x.y [ C] (factor 10) Tracking value, Signed Word 4x0453 Room temp.hc1 x.y +x.y [ C] (factor 10) 4x0454 Room temp.2 HC1 x.y +x.y [ C] (factor 10) 4x0475 Signal h.dem.hc1 x.y +x.y [ C] (factor 10) 4x0476 Signal h.dem.hc1 x.y +x.y [%] (factor 10) Loop and cascade controller settings X Controller Gain x.yy +x.yy (factor 100), Signed Word X Controller Integral 0 x [s] Unsigned Word X Controller Differential 0 x [s] Unsigned Word 4x0480 Control valve HC1 x.yy +x.yy (factor 100), Gain 4x0481 Control valve HC1 0 x [s] Integral 4x0482 Control valve HC1 0 x [s] Differential 4x0483 Contr.return temp. HC1 x.yy +x.yy (factor 100), Gain 4x0484 Contr.return temp. HC1 0 x [s] Integral 4x0485 Contr.return temp. HC1 0 x [s] Differential 4x0486 Control pump HC1 x.yy +x.yy (factor 100), Gain 4x0487 Control pump HC1 0 x [s] Integral 4x0488 Control pump HC1 0 x [s] Differential 4x0489 Contr.rt.t.d.lim.HC1 x.yy +x.yy (factor 100), Gain 4x0490 Contr.rt.t.d.lim.HC1 0 x [s] Integral 4x0491 Contr.rt.t.d.lim.HC1 0 x [s] Differential Alfa Laval ModBus dokumentation Rev10 31

32 Holding register, continued Holding register table, Address Description Values /Units Remarks Domestic hot water 4x0801 Op.mode comm.dw 03 Auto*PlantProt*Reduced 0=Auto 1=PlantProt 2=Reduced 3=Normal *Normal 4x0901 Op.mode comm.dw2 03 Auto*PlantProt*Reduced *Normal 4x0802 Manual operation DW 03 Auto*PlantProt*Reduced *Normal 4x0805 Manual Off DW 01 No*Yes 4x0808 Priority charging DW 04 None*MaxLim*Absolut*Shift *Shi+MaxLm 4x0810 SP Circ.pump.DW [%] 4x0811 SP char.pump DW [%] 4x0812 SP Prim.pump DW [%] 4x0813 Change interval char.pump DW x x [h] 4x0814 Change interval prim.pump DW x x [h] Present value, Signed Word 4x0815 Delay charg.pump DW 0.0 x.y [min] 4x0816 SP Min.charge time DW 0 x [min] 4x0817 SP Max.charge time DW 0 x [min] 4x0818 SP Legion.hold time DW 0.0 x.yy [min] 4x0819 SP Legion.interval DW 0 x [Days] 4x0820 SP Temp.normal DW x.y +x.y [ C] (factor 10) 4x0821 SP hys.normal DW x.y +x.y [ C] (factor 10) 4x0822 SP Temp.reduced DW x.y +x.y [ C] (factor 10) 4x0823 SP hys.reduced DW x.y +x.y [ C] (factor 10) 4x0824 SP fl.t.reduction DW x.y +x.y [ C] (factor 10) 4x0825 SP Fl.t.boost DW 0 x.y [ C] (factor 10) 4x0826 SP Legio.temp.DW x.y +x.y [ C] (factor 10) 4x0828 Setp.sec.ctrl DW x.y +x.y [ C] (factor 10) 4x0829 Valve range bigl DW x.y +x.y [%] 4x0830 Cool down hyst. DW x.y +x.y [ C] (factor 10) 4x0842 SP boost h.dem.dw 0 x.y [ C] (factor 10) 4x0845 SP Fl.t.max.dev.DW 0 x.y [ C] (factor 10) 4x0846 SP Fl.t.prim.max.dev.DW 0 x.y [ C] (factor 10) Alfa Laval ModBus dokumentation Rev10 32

33 Holding register, continued Holding register table, Address Description Values /Units Remarks Domestic hot water Loop and cascade controller settings X Controller Gain x.yy +x.yy (factor 100), Signed Word X Controller Integral 0 x [s] Unsigned Word X Controller Differential 0 x [s] Unsigned Word 4x0880 Control valve DW x.yy +x.yy (factor 100), Gain 4x0881 Control valve DW 0 x [s] Integral 4x0882 Control valve DW 0 x [s] Differential 4x0883 Control circ.pump DW x.yy +x.yy (factor 100), Gain 4x0884 Control circ.pump DW 0 x [s] Integral 4x0885 Control circ.pump DW 0 x [s] Differential 4x0886 Control char.pump DW x.yy +x.yy (factor 100), Gain 4x0887 Control char.pump DW 0 x [s] Integral 4x0888 Control char.pump DW 0 x [s] Differential 4x0889 Contr.return temp. DW x.yy +x.yy (factor 100), Gain 4x0890 Contr.return temp. DW 0 x [s] Integral 4x0891 Contr.return temp. DW 0 x [s] Differential 4x0892 Control prim.pump DW x.yy +x.yy (factor 100), Gain 4x0893 Control prim.pump DW 0 x [s] Integral 4x0894 Control prim.pump DW 0 x [s] Differential 4x0895 Control valve sec.dw x.yy +x.yy (factor 100), Gain 4x0896 Control valve sec.dw 0 x [s] Integral 4x0897 Control valve sec.dw 0 x [s] Differential Alfa Laval ModBus dokumentation Rev10 33

34 1.8 Hantering av ModBusinställningar i Operatörspanelen I operatörspanelen kan man ställa Baud, paritet, stopbitar, adress och vilken anslutning man använder. Man måste vara inloggad som minst Användare (första nivån) för att få tillträde att ändra inställningarna. På raden status kan man avläsa eventuell felkod. Hela informationen om felet får inte plats i operatörspanelens display så den är kort och gott listad som Statuskod. Om det uppstår fel i kommunikationen kan Alfa Laval kontaktas för eventuell support. De parametrar som används som fabriksinställninga är: 9600 bps, 8 bitar, 1 stopbit, jämn paritet, intern anslutning, adress 1. Alfa Laval ModBus dokumentation Rev10 34