@mickym sagte in node-red datenabfrage mit funktion node:

msg.payload[“pd.standByMode“]

Ok, das funktioniert.

Danke für deine schnelle Hilfe

@mickym
Hallo danke für die schnelle Antwort.
Die der Wert aus dem Debug-Fenster.

{"pd.iconWifiMode":0,"pd.iconOverloadState":0,"pd.wattsInSum":381,"pd.wifiVer":0,"pd.iconLowTempMode":0,"pd.iconGasGenMode":0,"pd.iconBmsParallelMode":0,"pd.iconInvParallelState":0,"pd.typec2Watts":0,"pd.iconTypecState":0,"pd.iconCarMode":1,"pd.iconCoGasState":0,"pd.iconRcState":0,"pd.iconHiTempState":0,"pd.iconHiTempMode":0,"pd.iconEcoMode":0,"pd.usb1Watts":0,"pd.standByMode":120,"latestTimeStamp":1686749690959,"pd.chgPowerDc":657,"pd.dsgPowerDc":469,"pd.iconUsbState":0,"pd.typccUsedTime":5461,"pd.iconBtMode":0,"pd.typec2Temp":31,"pd.carUsedTime":861333,"pd.typec1Watts":0,"pd.soc":80,"pd.iconFactoryState":0,"pd.iconChgStationState":0,"pd.iconBmsParallelState":0,"pd.wirelessWatts":0,"pd.iconCarState":0,"pd.iconSocUpsMode":0,"pd.iconSolarBracketMode":0,"pd.wattsOutSum":135,"pd.iconWifiState":0,"pd.iconWindGenMode":0,"pd.iconUsbMode":0,"pd.iconBmsErrState":0,"pd.iconBmsErrMode":0,"pd.iconWindGenState":0,"pd.iconBtState":0,"pd.iconEcoState":0,"pd.carState":0,"pd.invUsedTime":32346655,"pd.iconAcFreqMode":0,"pd.typec1Temp":30,"pd.dsgPowerAc":536510,"pd.dcInUsedTime":4610,"pd.iconLowTempState":0,"pd.model":1,"pd.chgPowerAc":670774,"pd.beepState":0,"pd.iconPackHeaterState":0,"pd.wifiAutoRcvy":0,"pd.remainTime":113,"pd.iconFanState":0,"pd.chgSunPower":271,"pd.carTemp":0,"pd.lcdBrightness":100,"pd.iconRechgTimeState":0,"pd.qcUsb2Watts":0,"pd.lcdOffSec":300,"pd.iconTransSwState":0,"pd.iconTypecMode":0,"pd.sysVer":16844309,"pd.iconOverloadMode":0,"pd.iconRechgTimeMode":0,"pd.sysChgDsgState":2,"pd.iconInvParallelMode":0,"pd.qcUsb1Watts":0,"pd.iconTransSwMode":0,"pd.iconFactoryMode":0,"pd.kit0":0,"pd.kit1":0,"pd.kit2":0,"pd.iconFanMode":1,"pd.usbqcUsedTime":8397,"pd.dcOutState":0,"pd.usbUsedTime":5441,"pd.mpptUsedTime":7772,"pd.iconSolarPanelState":0,"pd.iconWirelessChgMode":0,"pd.wifiRssi":0,"pd.iconSocUpsState":0,"pd.iconSolarBracketState":0,"pd.errCode":0,"pd.iconPackHeaterMode":0,"pd.iconCoGasMode":0,"pd.carWatts":0,"pd.iconChgStationMode":0,"pd.iconAcFreqState":0,"pd.iconGasGenState":0,"pd.usb2Watts":0,"pd.iconRcMode":0,"pd.iconWirelessChgState":0,"pd.iconSolarPanelMode":0}

Hallo,
ich bin blutiger Anfänger und scheitere daran über eine function-node
einzelne Werte auszulesen.

Der Code meines function-node ist wie folgt:

var msg = { payload: msg.payload};
return msg;

Damit erhalte ich nachfolgende payload:

14.6.2023, 13:43:25node: debug 30
msg : Object
object
payload: object
pd.iconWifiMode: 0
pd.iconOverloadState: 0
pd.wattsInSum: 276
pd.wifiVer: 0
pd.iconLowTempMode: 0
pd.iconGasGenMode: 0
pd.iconBmsParallelMode: 0
pd.iconInvParallelState: 0
pd.typec2Watts: 0
pd.iconTypecState: 0
pd.iconCarMode: 1
pd.iconCoGasState: 0
pd.iconRcState: 0
pd.iconHiTempState: 0
pd.iconHiTempMode: 0
pd.iconEcoMode: 0
pd.usb1Watts: 0
pd.standByMode: 120
latestTimeStamp: 1686743004837

Folgendes funktioniert
var msg = { payload: msg.payload.latestTimeStamp};
return msg;

Wenn ich jedoch einen Wert pd.xxx abfragen will bz.B.

var msg = { payload: msg.payload.pd.standByMode};
return msg;

bekomme ich eine Fehlermeldung. Cannot read property...

Kann mir jemand sagen, woran der Fehler liegt ?