OpenHAB SMA Wechselrichter mittels Modbus einbinden

Aus Laub-Home.de Wiki
Zur Navigation springen Zur Suche springen
SMA STP 8.jpg

Hier findet ihr eine Beispiel Konfiguration für openHAB um via ModBus die Daten der SMA Wechselrichter eurer PV Anlage auszulesen. Ich kann so alle gewünschten Werte auslesen. Mittels einer Regeldatei ist noch der Gesamtstromverbrauch berechnet. Ebenfalls berechnet dieser die Einnahmen durch Einspeisung und auch die Ausgaben für den Zukauf vom Stromanbieter.

Ich habe die folgenden SMA Wechselrichter im Einsatz:

  • SMA Sunny Tripower 8 (Solarpanels)
  • SMA SunnyBoy Storage 3.7-10 (BYD Batteriespeicher)

Die Anleitung sollte aber auch sehr gut für andere Wechselrichter von SMA adaptierbar sein. Die aktuellen Modbus IDs bekommt ihr bei SMA zum herunterladen.

Alle unten stehenden Dateien findet ihr in diesem GitHub Repository


Aktivieren von Modbus auf den Wechselrichtern

Dies müsst ihr entweder durch eure PV Fachleute konfigurieren lassen, oder falls ihr die benötigten Installateur Rechte habt direkt über die Webkonfiguration der Wechselrichter.

Auf den Wechselrichter findet ihr die Einstellung unter Geräteparameter --> Externe Kommuniktion. Wenn ihr den Wert bearbeiten wollt, müsst ihr zuerst den Button Parameter bearbeiten anklicken:

SMA Wechselrichter Modbus 1.png

SMA Wechselrichter Modbus 2.png

Nach dem ihr das Ganze gespeichert habt, sollte der Wechselrichter via IP / DNS Name und Modbus TCP 502 erreichbar sein.

openHAB Vorbereitung

Um Modbus überhaupt in openHAB verwenden zu können, muss man als erstes das Modbus Binding installieren. Dies könnt ihr unter den Einstellungen --> Bindings machen. Hier einfach nach Modbus suchen und installieren:

Modbus Binding.png

Wir benötigen dann noch die Transformations Javascript und Map. Diese könnt ihr in den Einstellungen --> Transfomations suchen und installieren:

OpenHAB Transformations SMA.png

Nach dem nun alle Abhängigkeiten in openHAB installiert sind, können wir die Konfigurationsdateien anlegen.

Wechselrichter Things

Zunächst müssen wir für alle Items, Things anlegen. Diese werden zum Teil durch Transform Scripte erweitert, da sonst verfälschte Werte in openHAB ankommen.

Ihr müsst die IP Adressen in die euerer Wechselrichter ändern. Zu empfehlen ist auch, das die IPs der Wechselrichter fixiert sind nicht ändern können.

conf/things/sma.things

// SMA Inverter 1 (SMA Tripower 8)
Bridge modbus:tcp:inverter1 "SMA Inverter 1 Bridge" [ host="192.168.50.41", port=502, id=3, connectMaxTries=3] {
// SMA Inverter Device Type
        Bridge poller DevType "SMA Inverter 1 Poller Device Type" [ start=30053, length=4, refresh=60000, type="input" ] {

                Thing data type "SMA Inverter 1 Device Type" [ readStart="30053", readValueType="uint32" ]

        }

// SMA Inverter Status
        Bridge poller SMA_Status "SMA Inverter 1 Poller Status"          [ start=30201, length=36, refresh=20000, type="input" ] {

               Thing data status "SMA Inverter 1 Status" [ readStart="30201", readValueType="int32" ]
               Thing data Grid_Contactor "SMA Inverter 1 Grid Contactor" [ readStart="30217", readValueType="int32" ]
               Thing data Max_Power "SMA Inverter 1 Max Power" [ readStart="30231", readValueType="int32" ]
               Thing data Set_Max_Power "SMA Inverter 1 Set Max Power" [ readStart="30233", readValueType="int32" ]

        }

        Bridge poller PowerDrawn "SMA Inverter 1 Poller Power Drawn" [ start=30865, length=4, refresh=5000, type="input" ] {

                Thing data PowerDrawn "SMA Inverter 1 Power Drawn" [ readStart="30865", readValueType="int32", readTransform="JS(smalimit.js)" ]
                Thing data PowerGridFeedIn "SMA Inverter 1 Power Grid Feed In" [ readStart="30867", readValueType="int32", readTransform="JS(smalimit.js)" ]

        }

// SMA Inverter Yield
        Bridge poller Yield "SMA Inverter 1 Poller Yield" [ start=30517, length=36, refresh=60000, type="input" ] {

               Thing data Day_Yield "SMA Inverter 1 Day Yield" [ readStart="30537", readValueType="int32", readTransform="JS(smalimit_undef.js)" ]
               Thing data Total_Yield "SMA Inverter 1 Total Yield" [ readStart="30531", readValueType="int32", readTransform="JS(smalimit_undef.js)" ]

        }

// SMA Inverter Power Section A & Total
        Bridge poller power_a "SMA Inverter 1 Poller Power A and Total" [ start=30769, length=20, refresh=5000, type="input" ] {

               Thing data currentA_input "SMA Inverter 1 Current Input A" [ readStart="30769", readValueType="int32", readTransform="JS(smalimit1000.js)" ]
               Thing data voltageA_input "SMA Inverter 1 Voltage A" [ readStart="30771", readValueType="int32", readTransform="JS(smalimit100.js)" ]
               Thing data powerA_input "SMA Inverter 1 Power A" [ readStart="30773", readValueType="int32", readTransform="JS(smalimit.js)" ]
               Thing data active_power "SMA Inverter 1 Active Power" [ readStart="30775", readValueType="int32", readTransform="JS(smalimit.js)" ]
               Thing data power_L1 "SMA Inverter 1 Power L1" [ readStart="30777", readValueType="int32", readTransform="JS(smalimit.js)" ]
               Thing data power_L2 "SMA Inverter 1 Power L2" [ readStart="30779", readValueType="int32", readTransform="JS(smalimit.js)" ]
               Thing data power_L3 "SMA Inverter 1 Power L3" [ readStart="30781", readValueType="int32", readTransform="JS(smalimit.js)" ]
               Thing data volt_G1 "SMA Inverter 1 Volt G1" [ readStart="30783", readValueType="int32", readTransform="JS(smalimit100.js)" ]
               Thing data volt_G2 "SMA Inverter 1 Volt G2" [ readStart="30785", readValueType="int32", readTransform="JS(smalimit100.js)" ]
               Thing data volt_G3 "SMA Inverter 1 Volt G3" [ readStart="30787", readValueType="int32", readTransform="JS(smalimit100.js)" ]

        }

// SMA Inverter Power Section B
        Bridge poller power_b "SMA Inverter 1 Poller Power B" [ start=30957, length=8, refresh=5000, type="input" ] {

               Thing data currentB_input "SMA Inverter 1 Current Input B" [ readStart="30957", readValueType="int32", readTransform="JS(smalimit1000.js)" ]
               Thing data voltageB_input "SMA Inverter 1 Voltage B" [ readStart="30959", readValueType="int32", readTransform="JS(smalimit100.js)" ]
               Thing data powerB_input "SMA Inverter 1 Power B" [ readStart="30961", readValueType="int32", readTransform="JS(smalimit.js)" ]

        }

// SMA Inverter Temperature
        Bridge poller InternalTemperature "SMA Inverter 1 Poller Internal Temperature" [ start=34113, length=2, refresh=15000, type="input" ] {

                Thing data InternalTemperature "SMA Inverter 1 Internal Temperature" [ readStart="34113", readValueType="int32", readTransform="JS(smalimit10_undef.js)" ]

        }


// SMA Inverter Operation
        Bridge poller SMA_Status_Operate "SMA Inverter 1 Poller Status Operate" [ start=40029, length=4, refresh=15000, type="holding" ] {

               Thing data operatestatus "SMA Inverter 1 Status Operate" [ readStart="40029", readValueType="uint32" ]

        }
}


// SMA Inverter 2 (SunnyBoy Storage 3.7)
Bridge modbus:tcp:inverter2 "SMA Inverter 2 Bridge" [ host="192.168.50.42", port=502, id=3, connectMaxTries=3] {
// SMA SunnyBoy Storage 3.7
        Bridge poller device_typ "SMA Inverter 2 Poller Device Type" [ start=30053, length=4, refresh=60000, type="input" ] {

                Thing data device_typ "SMA Inverter 2 Device Type" [ readStart="30053", readValueType="int32"]

        }

// SMA SunnyBoy Storage 3.7 Condition
        Bridge poller status "SMA Inverter 2 Poller Status" [ start=30201, length=4, refresh=15000, type="input" ] {

                Thing data status "SMA Inverter 2 Status" [ readStart="30201", readValueType="int32"]

}

// SMA SunnyBoy Storage 3.7 GridRelay on/off
        Bridge poller GridRelay "SMA Inverter 2 Poller Grid Relay" [ start=30217, length=4, refresh=5000, type="input" ] {

                Thing data GridRelay "SMA Inverter 2 Grid Relay" [ readStart="30217", readValueType="int32"]

        }

// SMA SunnyBoy Storage 3.7 Total Yield.
        Bridge poller TotalYield "SMA Inverter 2 Poller Total Yield" [ start=30531, length=4, refresh=60000, type="input" ] {

                Thing data TotalYield "SMA Inverter 2 Total Yield" [ readStart="30531", readValueType="int32", readTransform="JS(smalimit_undef.js)" ]

        }

// SMA SunnyBoy Storage 3.7 Daily Yield
        Bridge poller DayYield "SMA Inverter 2 Poller Daily Yield" [ start=30537, length=4, refresh=60000, type="input" ] {

                Thing data DayYield "SMA Inverter 2 Day Yield" [ readStart="30537", readValueType="int32" ]

        }

// SMA SunnyBoy Storage 3.7 Power
        Bridge poller Power "SMA Inverter 2 Poller Power" [ start=30775, length=4, refresh=5000, type="input" ] {

                Thing data Power "SMA Inverter 2 Power" [ readStart="30775", readValueType="int32" ]
                Thing data PowerL1 "SMA Inverter 2 Power L1" [ readStart="30777", readValueType="int32" ]

        }

// SMA SunnyBoy Storage 3.7 Grid Voltage L1
        Bridge poller GVoltageL1 "SMA Inverter 2 Poller Voltage L1" [ start=30783, length=4, refresh=5000, type="input" ] {

                Thing data GVoltageL1 "SMA Inverter 2 Voltage L1" [ readStart="30783", readValueType="int32", readTransform="JS(divide100.js)" ]

        }

// SMA SunnyBoy Storage 3.7 Current battery state
        Bridge poller CurrentBatStatCharge "SMA Inverter 2 Poller Current Battery Charge" [ start=30845, length=6, refresh=15000, type="input" ] {

                Thing data CurrentBatStatCharge "SMA Inverter 2 Current Battery Charge State" [ readStart="30845", readValueType="int32" ]
                Thing data CurrentBatcapacity "SMA Inverter 2 Current Battery Capacity" [ readStart="30847", readValueType="int32" ]
                Thing data CurrentBatTemp "SMA Inverter 2 Current Battery Temperature" [ readStart="30849", readValueType="int32", readTransform="JS(smalimit10_undef.js)" ]

        }

// SMA SunnyBoy Storage 3.7 PowerDrawn
        Bridge poller PowerDrawn "SMA Inverter 2 Poller Power Drawn" [ start=30865, length=4, refresh=5000, type="input" ] {

                Thing data PowerDrawn "SMA Inverter 2 Power Drawn" [ readStart="30865", readValueType="int32" ]
                Thing data PowerGridFeedIn "SMA Inverter 2 Power Grid Feed In" [ readStart="30867", readValueType="int32" ]

        }


// SMA SunnyBoy Storage 3.7 Battery oper. status
        Bridge poller BatteryStatus "SMA Inverter 2 Poller Battery Status" [ start=30955, length=4, refresh=30000, type="input" ] {

                Thing data BatteryStatus "SMA Inverter 2 Battery Status" [ readStart="30955", readValueType="int32" ]

        }

// SMA SunnyBoy Storage 3.7 Status battery application area:
        Bridge poller BatteryAppArea "SMA Inverter 2 Poller Battery App Area" [ start=31057, length=4, refresh=30000, type="input" ] {

                Thing data BatteryAppArea "SMA Inverter 2 Battery App Area" [ readStart="31057", readValueType="int32" ]

         }


// SMA SunnyBoy Storage 3.7
        Bridge poller PowerDrawnGridL1 "SMA Inverter 2 Poller Power Grid L1" [ start=31259, length=16, refresh=5000, type="input" ] {

                Thing data PowerGridFeedL1 "SMA Inverter 2 Power Grid Feed L1" [ readStart="31259", readValueType="int32" ]
                Thing data PowerGridFeedL2 "SMA Inverter 2 Power Grid Feed L2" [ readStart="31261", readValueType="int32" ]
                Thing data PowerGridFeedL3 "SMA Inverter 2 Power Grid Feed L3" [ readStart="31263", readValueType="int32" ]
                Thing data PowerDrawnGridL1 "SMA Inverter 2 Power Drawn Grid L1" [ readStart="31265", readValueType="int32" ]
                Thing data PowerDrawnGridL2 "SMA Inverter 2 Power Drawn Grid L2" [ readStart="31267", readValueType="int32" ]
                Thing data PowerDrawnGridL3 "SMA Inverter 2 Power Drawn Grid L3" [ readStart="31269", readValueType="int32" ]

        }

// SMA SunnyBoy Storage 3.7
        Bridge poller PowerDrawnGridL1 "SMA Inverter 2 Poller Power Grid L1" [ start=31259, length=16, refresh=5000, type="input" ] {

                Thing data PowerGridFeedL1 "SMA Inverter 2 Power Grid Feed L1" [ readStart="31259", readValueType="int32" ]
                Thing data PowerGridFeedL2 "SMA Inverter 2 Power Grid Feed L2" [ readStart="31261", readValueType="int32" ]
                Thing data PowerGridFeedL3 "SMA Inverter 2 Power Grid Feed L3" [ readStart="31263", readValueType="int32" ]
                Thing data PowerDrawnGridL1 "SMA Inverter 2 Power Drawn Grid L1" [ readStart="31265", readValueType="int32" ]
                Thing data PowerDrawnGridL2 "SMA Inverter 2 Power Drawn Grid L2" [ readStart="31267", readValueType="int32" ]
                Thing data PowerDrawnGridL3 "SMA Inverter 2 Power Drawn Grid L3" [ readStart="31269", readValueType="int32" ]

        }

// SMA SunnyBoy Storage 3.7 Present battery charge
        Bridge poller PresBatCharge "SMA Inverter 2 Poller Present Battery Charge" [ start=31393, length=4, refresh=5000, type="input" ] {

                Thing data PresBatCharge "SMA Inverter 2 Present Battery Charge" [ readStart="31393", readValueType="int32" ]
                Thing data PresBattDischarge "SMA Inverter 2 Present Battery Discharge" [ readStart="31395", readValueType="int32" ]

        }


// SMA SunnyBoy Storage 3.7 Inverter Temperature
        Bridge poller InternalTemperature "SMA Inverter 2 Poller Internal Temperature" [ start=34113, length=2, refresh=15000, type="input" ] {

                Thing data InternalTemperature "SMA Inverter 2 Internal Temperature" [ readStart="34113", readValueType="int32", readTransform="JS(smalimit10_undef.js)" ]

        }


// SMA SunnyBoy Storage 3.7 Battery nominal capacity
        Bridge poller BattNormCap "SMA Inverter 2 Poller Battery Nominal Capacity" [ start=40187, length=2, refresh=300000, type="input" ] {

                Thing data BattNorminalcapac "SMA Inverter 2 Battery Nominal Capacity" [ readStart="40187", readValueType="int32" ]

        }
}

Transformation Scripts

Da die Wechselrichter zum Teil falsche Werte über Modbus liefern, müssen wir die Werte zum Teil umrechnen und bei Werten kleiner 0 entweder 0 setzen, oder gar einen undefinierten Zustand mit UNDEF.

conf/transform/smalimit1000.js

(function(i) {
    if(i < 0) return "0";
    return parseFloat(i) / 1000
})(input)


conf/transform/smalimit100.js

(function(i) {
    if(i < 0) return "0";
    return parseFloat(i) / 100
})(input)


conf/transform/smalimit10_undef.js

(function(i) {
    if(i < 0) return "UNDEF";
    return parseFloat(i) / 10
})(input)


conf/transform/smalimit.js

(function(i) {
    if(i < 0) return "0";
    return parseFloat(i)
})(input)


conf/transform/smalimit_undef.js

(function(i) {
    if(i < 0) return "UNDEF";
    return parseFloat(i)
})(input)

Mapping Datei

Die Mapping Datei sorgt dafür das Zahlencodes in Lesbare Werte gewandelt werden. Zum Beispiel Statuscodes. Die Aktellen Werte für eure Wechselrichter findet ihr auch in der Modbus Dokumentation von eurem Wechselrichter.

conf/transform/sma.map

// Device Type
9098=STP 5000TL-20
9099=STP 6000TL-20
9100=STP 7000TL-20
9102=STP 9000TL-20
9103=STP 8000TL-20
9281=STP 10000TL-20
9282=STP 11000TL-20
9283=STP 12000TL-20
9326=Sunny Boy Storage 2.5
9347=STP 8.0
9356=SBS 3.7-10

// Condition
35=Fault
303=OFf
307=Ok
308=On
455=Warning

// Recommended action:
336=Contact manufacturer
337=Contact installer
338=invalid
887=none

// Grid relay/contactor:
51=Closed
311=Open
16777213=Information not available

// Operating status:
295=MPP
381=Off
569=On
443=Constant voltage
1392=Fault
1393=Waiting for PV voltage
1467=Start
1469=Shut down
1480=Waiting for utilities company
2119=Derating
ON=On

// Battery oper. status:
2291=Battery standby
2292=Charge battery
2293=Discharge battery

// Status battery application area:
2614=Own consumption area
2615=State of charge conservation area
2616=Backup power area
2617=Deep discharge protection area
2618=Deep discharge area

Wechselrichter Items

Um die Werte in openHAB einbinden zukönnen, legen wir nun noch für alles Items an. Die letzten Items ganz unten werden durch die Rules Datei berechnet und gefüttert.

conf/items/sma.items

// Inverter 1 TriPower 8.0
String inverter1DevType               "Inverter Type [MAP(sma.map):%s]"                 <inverter>         (Inverter1)  {channel="modbus:data:inverter1:DevType:type:string"}

String inverter1Status                "Device Status [MAP(sma.map):%s]"                 <status>           (Inverter1)  {channel="modbus:data:inverter1:SMA_Status:status:string"}
String inverter1GridContactor         "Grid contactor [MAP(sma.map):%s]"                <status>           (Inverter1)  {channel="modbus:data:inverter1:SMA_Status:Grid_Contactor:string"}

Number inverter1MaxPower              "Max Power [%s W]"                                <Energy>           (Inverter1)  {channel="modbus:data:inverter1:SMA_Status:Max_Power:number"}
Number inverter1SetMaxPower           "Max Power Set [%s W]"                            <Energy>           (Inverter1)  {channel="modbus:data:inverter1:SMA_Status:Set_Max_Power:number"}

Number inverter1PowerDrawn            "Power drawn from Grid [%s W]"                    <Energy>           (Inverter1)  {channel="modbus:data:inverter1:PowerDrawn:PowerDrawn:number"}
Number inverter1PowerGridFeedIn       "Power feedin Grid [%s W]"                        <Energy>           (Inverter1)  {channel="modbus:data:inverter1:PowerDrawn:PowerGridFeedIn:number"}

Number inverter1DailyYield            "Inverter Daily Yield [%s kWh]"                   <line>             (Inverter1)  {channel="modbus:data:inverter1:Yield:Day_Yield:number"}
Number inverter1TotalYield            "Inverter Total Yield [%s kWh]"                   <line>             (Inverter1)  {channel="modbus:data:inverter1:Yield:Total_Yield:number"}

Number inverter1DC1Cur_input          "Current input A [%s A]"                          <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:currentA_input:number"}
Number inverter1DC1Volt_input         "Voltage input A [%s V]"                          <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:voltageA_input:number"}
Number inverter1PowerA                "Panel A [%s W]"                                  <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:powerA_input:number"}
Number inverter1ActivePower           "Total Production [%s W]"                         <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:active_power:number"}
Number inverter1PowerL1               "Active Power L1 [%s W]"                          <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:power_L1:number"}
Number inverter1PowerL2               "Active Power L2 [%s W]"                          <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:power_L2:number"}
Number inverter1PowerL3               "Active Power L3 [%s W]"                          <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:power_L3:number"}
Number inverter1_voltG1               "Grid voltage phase L1 [%s V]"                    <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:volt_G1:number"}
Number inverter1_voltG2               "Grid voltage phase L2 [%s V]"                    <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:volt_G2:number"}
Number inverter1_voltG3               "Grid voltage phase L3 [%s V]"                    <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_a:volt_G3:number"}

Number inverter1DC2Cur_input          "Current input B [%s A]"                          <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_b:currentB_input:number"}
Number inverter1DC2Volt_input         "Voltage input B [%s V]"                          <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_b:voltageB_input:number"}
Number inverter1PowerB                "Panel B [%s W]"                                  <solarplant>       (Inverter1)  {channel="modbus:data:inverter1:power_b:powerB_input:number"}
String inverter1OpMode                "Operation Mode [MAP(sma.map):%s]"                <status>           (Inverter1)  {channel="modbus:data:inverter1:SMA_Status_Operate:operatestatus:string"}

Number inverter1InternalTemperature   "Internal Temperature [%s °C]"                    <temperature>      (Inverter1)  {channel="modbus:data:inverter1:InternalTemperature:InternalTemperature:number"}


// Inverter 2 SunnyBoy Storage 3.7-10
String inverter2DevType               "Inverter type [MAP(sma.map):%s]"                 <inverter>         (Inverter2)  {channel="modbus:data:inverter2:device_typ:device_typ:string"}
String inverter2Status                "Device Status [MAP(sma.map):%s]"                 <status>           (Inverter2)  {channel="modbus:data:inverter2:status:status:string"}
String inverter2GridRelay             "Grid Relay [MAP(sma.map):%s]"                    <status>           (Inverter2)  {channel="modbus:data:inverter2:GridRelay:GridRelay:string"}
Number inverter2TotalYield            "Total Yield [%s kWh]"                            <line>             (Inverter2)  {channel="modbus:data:inverter2:TotalYield:TotalYield:string"}
Number inverter2DayYield              "Daily Yield [%s kWh]"                            <line>             (Inverter2)  {channel="modbus:data:inverter2:DayYield:DayYield:string"}
Number inverter2Power                 "Power [%s W]"                                    <Energy>           (Inverter2)  {channel="modbus:data:inverter2:Power:Power:string"}
Number inverter2PowerL1               "Power L1 [%s W]"                                 <Energy>           (Inverter2)  {channel="modbus:data:inverter2:Power:PowerL1:string"}
Number inverter2GVoltageL1            "Grid Voltage L1 [%s V]"                          <Energy>           (Inverter2)  {channel="modbus:data:inverter2:GVoltageL1:GVoltageL1:string"}

Number inverter2BatStateCharge        "Current Battery State Charge [%s %%]"            <batterylevel>     (Inverter2)  {channel="modbus:data:inverter2:CurrentBatStatCharge:CurrentBatStatCharge:number"}
Number inverter2BatCapacity           "Current Battery Capacity [%s %%]"                <status>           (Inverter2)  {channel="modbus:data:inverter2:CurrentBatStatCharge:CurrentBatcapacity:number"}
Number inverter2BatTemp               "Current Battery Temperature [%.1f °C]"           <temperature>      (Inverter2)  {channel="modbus:data:inverter2:CurrentBatStatCharge:CurrentBatTemp:number"}

Number inverter2PowerDrawn            "Power drawn from Grid [%s W]"                    <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawn:PowerDrawn:number"}
Number inverter2PowerGridFeedIn       "Power feedin Grid [%s W]"                        <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawn:PowerGridFeedIn:number"}

Number inverter2BatteryStatus         "Battery status [MAP(sma.map):%s]"                <switch>           (Inverter2)  {channel="modbus:data:inverter2:BatteryStatus:BatteryStatus:number"}
String inverter2BatAppArea            "Battery Application Area [MAP(sma.map):%s]"      <status>           (Inverter2)  {channel="modbus:data:inverter2:BatteryAppArea:BatteryAppArea:string"}

Number inverter2PowGridFeedL1         "Power feedin Grid L1 [%s W]"                     <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawnGridL1:PowerGridFeedL1:number"}
Number inverter2PowGridFeedL2         "Power feedin Grid L2 [%s W]"                     <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawnGridL1:PowerGridFeedL2:number"}
Number inverter2PowGridFeedL3         "Power feedin Grid L3 [%s W]"                     <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawnGridL1:PowerGridFeedL3:number"}
Number inverter2PowDraGridL1          "Power drawn from Grid L1 [%s W]"                 <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawnGridL1:PowerDrawnGridL1:number"}
Number inverter2PowDraGridL2          "Power drawn from Grid L2 [%s W]"                 <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawnGridL1:PowerDrawnGridL2:number"}
Number inverter2PowDraGridL3          "Power drawn from Grid L3 [%s W]"                 <Energy>           (Inverter2)  {channel="modbus:data:inverter2:PowerDrawnGridL1:PowerDrawnGridL3:number"}

Number inverter2PreBatCharge          "Present Battery Charge [%s W]"                   <batterylevel>     (Inverter2)  {channel="modbus:data:inverter2:PresBatCharge:PresBatCharge:number"}
Number inverter2PreBatDischarge       "Present Battery Discharge [%s W]"                <batterylevel>     (Inverter2)  {channel="modbus:data:inverter2:PresBatCharge:PresBattDischarge:number"}

Number inverter2InternalTemperature   "Internal Temperature [%s °C]"                    <temperature>      (Inverter2)  {channel="modbus:data:inverter2:InternalTemperature:InternalTemperature:number"}

Number inverter2BatNormCapac          "Battery Norminal Capacity [%s Wh]"               <text>             (Inverter2)  {channel="modbus:data:inverter2:BattNormCap:BattNorminalcapac:number"}


// Total Power Consumption / Earnings and Costs
Number TotalPowerConsumption          "Total Consumption [%.0f W]"                      <house>            (Inverter1)
Number PowerConsumptionBatIncl        "Consumption with Battery Charge [%.0f W]"        <house>            (Inverter1)
Number TotalPowerEarnings             "Total Power Earnings [%.2f €]"                   <piggybank>        (Inverter1)
Number TotalPowerCosts                "Total Power Costs [%.2f €]"                      <piggybank>        (Inverter1)

Regeln / Rules

Mit Hilfe der Regeldatei, berechnen wir den Gesamtstromverbrauch und die Einnahmen durch Einspeisung und auch die Ausgaben durch den Zukauf von Strom.

conf/rules/sma.rules

var Number

rule "Total Power Consumption"
when
  Item inverter1PowerDrawn received update
then
  val Number TotalPower = (inverter1ActivePower.state as DecimalType
    + inverter2PreBatDischarge.state as DecimalType
    + inverter1PowerDrawn.state as DecimalType
    - inverter2PreBatCharge.state as DecimalType
    - inverter1PowerGridFeedIn.state as DecimalType)
  if ( TotalPower >= 0 ) {
    TotalPowerConsumption.postUpdate(TotalPower)
  }

  val Number PowerBatIncl = (inverter1ActivePower.state as DecimalType
    + inverter2PreBatDischarge.state as DecimalType
    + inverter1PowerDrawn.state as DecimalType
    - inverter1PowerGridFeedIn.state as DecimalType)
  if ( TotalPower >= 0 ) {
    PowerConsumptionBatIncl.postUpdate(PowerBatIncl)
  }
end

rule "Total Power Earnings"
when
  Item SMAEnergyMeter_EingespeisteEnergie received update
then
  TotalPowerEarnings.postUpdate(SMAEnergyMeter_EingespeisteEnergie.state as DecimalType * 0.0758)
end

rule "Total Power Costs"
when
  Item SMAEnergyMeter_BezogeneEnergie received update
then
  TotalPowerCosts.postUpdate(SMAEnergyMeter_BezogeneEnergie.state as DecimalType * 0.2409)
end

Sitemap

Hier ein Bespiel wie die untenstehende Sitemap aussieht.

OpenHAB SMA Sitemap.jpg

conf/sitemaps/sma.sitemap

sitemap inverters label="SMA PV Installation"
{
        Frame label="Summary" {
                Text  item=TotalPowerConsumption
                Text  item=PowerConsumptionBatIncl
                Text  item=inverter1ActivePower label="Total Production"
                Text  item=inverter1PowerGridFeedIn
                Text  item=inverter1PowerDrawn
                Text  item=inverter2PreBatCharge
                Text  item=inverter2PreBatDischarge
                Text  item=inverter2BatStateCharge
                Text  item=inverter1PowerA {
                        Text  item=inverter1DC1Volt_input
                        Text  item=inverter1DC1Cur_input
                        Text  item=inverter1PowerA
                }
                Text item=inverter1PowerB {
                        Text  item=inverter1DC2Volt_input
                        Text  item=inverter1DC2Cur_input
                        Text  item=inverter1PowerB
                }
                Text item=TotalPowerEarnings
                Text item=TotalPowerCosts
        }

        Frame label="SMA Inverter 1" {
                Text  item=inverter1Status
                Text  item=inverter1DevType
                Text  item=inverterGridContactor
                Text  item=inverter1OpMode
                Text  item=inverter1MaxPower
                Text  item=inverter1SetMaxPower
                Text  item=inverter1InternalTemperature
        }

        Frame label="Solar Panels" {
                Text  item=inverter1PowerA {
                        Text  item=inverter1DC1Volt_input
                        Text  item=inverter1DC1Cur_input
                        Text  item=inverter1PowerA
                }
                Text item=inverter1PowerB {
                        Text  item=inverter1DC2Volt_input
                        Text  item=inverter1DC2Cur_input
                        Text  item=inverter1PowerB
                }
                Text  item=inverter1ActivePower label="Total Watt"
                Text  item=inverter2BatStateCharge
                Text  item=inverter2PreBatCharge
                Text  item=inverter2PreBatDischarge
        }
        
        Frame label="Yield" {
                Text  item=inverter1DailyYield
                Text  item=inverter1TotalYield
        }

        Frame label="Grid voltage & Power" {
                Text  item=inverter1_voltG1
                Text  item=inverter1PowerL1
                Text  item=inverter1_voltG2
                Text  item=inverter1PowerL2
                Text  item=inverter1_voltG3
                Text  item=inverter1PowerL3
        }

        Frame label="SMA Inverter 2" {
                Text  item=inverter2Status
                Text  item=inverter2DevType
                Text  item=inverter2Power
                Text  item=inverter2PowerL1
                Text  item=inverter2GVoltageL1
                Text  item=inverter2GridRelay
                Text  item=inverter2DayYield
                Text  item=inverter2TotalYield
                Text  item=inverter2InternalTemperature
        }
        
        Frame label="PowerDrawn/Feed-in" {
                Text  item=inverter2PowerDrawn
                Text  item=inverter2PowerGridFeedIn
                Text  item=inverter2PowDraGridL1
                Text  item=inverter2PowGridFeedL1
                Text  item=inverter2PowDraGridL2
                Text  item=inverter2PowGridFeedL2
                Text  item=inverter2PowDraGridL3
                Text  item=inverter2PowGridFeedL3
        }

        Frame label="BYD B-Box HVS 10.2" {
                Text  item=inverter2BatteryStatus
                Text  item=inverter2BatAppArea
                Text  item=inverter2BatCapacity
                Text  item=inverter2BatNormCapac
                Text  item=inverter2BatStateCharge
                Text  item=inverter2PreBatCharge
                Text  item=inverter2PreBatDischarge
                Text  item=inverter2BatTemp
        }
}

Quellen