openDTU Hoymiles ohne Cloud eine Nulleinspeisung möglich?

Servus,

gibt er hier schon jemanden der mit der openDTU in Verbindung
mit dem Chint DTSU666 RS485 Smartmeter ohne Cloud eine Nulleinspeisung realisiert?

Was ich bis jetzt rausgefunden hab das HM noch das alte HTTP / 0.9 verwendet. Und in meinem Fall z.b. Homeassistant
nicht so ohne weiteres lesen kann. Was aber mit Node-Red in Verbindung mit Curl- und Stream-JSON möglich sein
soll an die Daten zu kommen ohne HM Account Cloud.

Gut an die Daten kommen ist die eine Sache, aber wie eine Nulleinspeisung realisieren ohne Cloud.
Ich hab einen HM800 und den HM1500 im Besitze.
Es müssen also beide ausgelesen werden mit openDTU.

Weil ich noch am Überlegen bin
ob es sich lohnt ein openDTU einzusetzen für die Nulleinspeisung. Brauch ich paar Erfahrung von Euch wie ihr das
umgesetzt habt.

Hier der flow für Node-Red zum Testen ist aber irgendwie alles mit der DTU-100 erreicht worden.
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"type": "tab",
"label": "PV",
"disabled": false,
"info": "",
"env": []
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{
"id": "e1ca176c6ebb0e6f",
"type": "exec",
"z": "b52d74e9be54c49b",
"command": "curl 192.168.12.210/hometable.xml --http0.9",
"addpay": "",
"append": "",
"useSpawn": "false",
"timer": "1",
"winHide": false,
"oldrc": false,
"name": "",
"x": 370,
"y": 160,
"wires": [
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{
"id": "95773632b7258564",
"type": "inject",
"z": "b52d74e9be54c49b",
"name": "",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "60",
"crontab": "",
"once": true,
"onceDelay": 0.1,
"topic": "",
"payload": "ping",
"payloadType": "str",
"x": 110,
"y": 160,
"wires": [
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]
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{
"id": "bdb103f2ea61cc72",
"type": "debug",
"z": "b52d74e9be54c49b",
"name": "Debug",
"active": false,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
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"statusVal": "",
"statusType": "auto",
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"y": 140,
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{
"id": "b31bdde29ea31f7e",
"type": "debug",
"z": "b52d74e9be54c49b",
"name": "Return code",
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"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
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"statusVal": "",
"statusType": "auto",
"x": 690,
"y": 280,
"wires": []
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"statusVal": "",
"statusType": "auto",
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{
"id": "487410fb842d2664",
"type": "function",
"z": "b52d74e9be54c49b",
"name": "Convert to String",
"func": "msg.payload = msg.payload.toString();nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
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"wires": [
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{
"id": "5b528da2128633eb",
"type": "csv",
"z": "b52d74e9be54c49b",
"name": "Select data",
"sep": ";",
"hdrin": false,
"hdrout": "all",
"multi": "one",
"ret": "\n",
"temp": "power_total,energy_total,energy_today",
"skip": "0",
"strings": true,
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"include_null_values": false,
"x": 850,
"y": 140,
"wires": [
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"type": "ha-entity",
"z": "b52d74e9be54c49b",
"name": "DTU Energy Today",
"server": "9847e1812fb1326f",
"version": 2,
"debugenabled": false,
"outputs": 1,
"entityType": "sensor",
"config": [
{
"property": "name",
"value": "dtu_energy_today"
},
{
"property": "device_class",
"value": "energy"
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{
"property": "icon",
"value": ""
},
{
"property": "unit_of_measurement",
"value": "kWh"
},
{
"property": "state_class",
"value": "total_increasing"
},
{
"property": "last_reset",
"value": ""
}
],
"state": "payload.energy_today",
"stateType": "msg",
"attributes": [],
"resend": true,
"outputLocation": "payload",
"outputLocationType": "msg",
"inputOverride": "allow",
"outputOnStateChange": false,
"outputPayload": "$entity().state ? "on": "off"",
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{
"id": "0ffdb0c2167f20ce",
"type": "ha-entity",
"z": "b52d74e9be54c49b",
"name": "DTU Power Total",
"server": "9847e1812fb1326f",
"version": 2,
"debugenabled": false,
"outputs": 1,
"entityType": "sensor",
"config": [
{
"property": "name",
"value": "dtu_power_total"
},
{
"property": "device_class",
"value": "power"
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{
"property": "icon",
"value": ""
},
{
"property": "unit_of_measurement",
"value": "kW"
},
{
"property": "state_class",
"value": "measurement"
},
{
"property": "last_reset",
"value": ""
}
],
"state": "payload.power_total",
"stateType": "msg",
"attributes": [],
"resend": true,
"outputLocation": "payload",
"outputLocationType": "msg",
"inputOverride": "allow",
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"z": "b52d74e9be54c49b",
"name": "DTU Energy Total",
"server": "9847e1812fb1326f",
"version": 2,
"debugenabled": false,
"outputs": 1,
"entityType": "sensor",
"config": [
{
"property": "name",
"value": "dtu_energy_total"
},
{
"property": "device_class",
"value": "energy"
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{
"property": "icon",
"value": "mdi:infinity"
},
{
"property": "unit_of_measurement",
"value": "kWh"
},
{
"property": "state_class",
"value": "total_increasing"
},
{
"property": "last_reset",
"value": ""
}
],
"state": "payload.energy_total",
"stateType": "msg",
"attributes": [],
"resend": true,
"outputLocation": "payload",
"outputLocationType": "msg",
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"outputOnStateChange": false,
"outputPayload": "$entity().state ? "on": "off"",
"outputPayloadType": "jsonata",
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"wires": [
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},
{
"id": "9847e1812fb1326f",
"type": "server",
"name": "Home Assistant",
"version": 2,
"addon": false,
"rejectUnauthorizedCerts": false,
"ha_boolean": "y|yes|true|on|home|open",
"connectionDelay": true,
"cacheJson": true,
"heartbeat": false,
"heartbeatInterval": "30"
}
]