maybe an example could help (from Kostal Inverter):
[
{
"id": "aa2ccdef.a81888",
"type": "modbus-getter",
"z": "9fc0f809.f00518",
"name": "100 - 179",
"showStatusActivities": false,
"showErrors": false,
"logIOActivities": false,
"unitid": "71",
"dataType": "HoldingRegister",
"adr": "100",
"quantity": "80",
"server": "a1b432331279e425",
"useIOFile": false,
"ioFile": "",
"useIOForPayload": false,
"emptyMsgOnFail": false,
"keepMsgProperties": false,
"x": 100,
"y": 100,
"wires": [
[
"fa8ee63d.afaf18"
],
[
"1838b6bb.401ce1"
]
]
},
{
"id": "fa8ee63d.afaf18",
"type": "buffer-parser",
"z": "9fc0f809.f00518",
"name": "Wechselrichter",
"data": "payload",
"dataType": "msg",
"specification": "spec",
"specificationType": "ui",
"items": [
{
"type": "floatle",
"name": "P_DC",
"offset": 0,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "Hausv_Batt",
"offset": 12,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "Hausv_Netz",
"offset": 16,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "Hausv_PV",
"offset": 32,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "Power_Limit_EVU",
"offset": 44,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "cos_phi",
"offset": 100,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "Frequenz",
"offset": 104,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "I_L1",
"offset": 108,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "P_L1",
"offset": 112,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "U_L1",
"offset": 116,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "I_L2",
"offset": 120,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "P_L2",
"offset": 124,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "U_L2",
"offset": 128,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "I_L3",
"offset": 132,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "P_L3",
"offset": 136,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "U_L3",
"offset": 140,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "P_AC",
"offset": 144,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
},
{
"type": "floatle",
"name": "Q",
"offset": 148,
"length": 1,
"offsetbit": 0,
"scale": "-1",
"mask": ""
},
{
"type": "floatle",
"name": "S",
"offset": 156,
"length": 1,
"offsetbit": 0,
"scale": "1",
"mask": ""
}
],
"swap1": "swap16",
"swap2": "",
"swap3": "",
"swap1Type": "swap",
"swap2Type": "swap",
"swap3Type": "swap",
"msgProperty": "payload",
"msgPropertyType": "str",
"resultType": "keyvalue",
"resultTypeType": "output",
"multipleResult": false,
"fanOutMultipleResult": false,
"setTopic": true,
"outputs": 1,
"x": 300,
"y": 100,
"wires": [
[
"14fab764.2ae4f9",
"2dfc6d72.b19b1a",
"a0504ce8.b4ba68",
"abe58c0d.ff7c18",
"463d785b.3157",
"456a2eab.c0cd88",
"b4262f8f.117268",
"319b5af8281203bb"
]
]
},
{
"id": "2dfc6d72.b19b1a",
"type": "function",
"z": "9fc0f809.f00518",
"name": "Blindleistung WR",
"func": "Q = msg.payload.Q;\nif (Q > 9999) {\n Q = 0;\n}\nQ = parseFloat(Q.toFixed(0));\nmsg.payload = Q;\nmsg.topic = \"Q\";\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 550,
"y": 180,
"wires": [
[
"190bc38e.03ec84"
]
]
},
{
"id": "a0504ce8.b4ba68",
"type": "function",
"z": "9fc0f809.f00518",
"name": "Hausverbrauch",
"func": "Batt = msg.payload.Hausv_Batt;\nBatt = parseFloat(Batt.toFixed(0));\nNetz = msg.payload.Hausv_Netz\nNetz = parseFloat(Netz.toFixed(0));\nPV = msg.payload.Hausv_PV;\nPV = parseFloat(PV.toFixed(0));\nmsg.payload = {Batt,Netz,PV};\nmsg.topic = \"Hausverbrauch\";\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 540,
"y": 260,
"wires": [
[
"2cad6ab1.46a54e",
"e7c7f4c3.019088",
"e1ccaa9f.68df1"
]
]
},
{
"id": "319b5af8281203bb",
"type": "function",
"z": "9fc0f809.f00518",
"name": "PAC,PDC,PF",
"func": "PAC=msg.payload.P_AC;\nPAC=parseFloat(PAC.toFixed(0));\nPDC=msg.payload.P_DC;\nPDC=parseFloat(PDC.toFixed(0));\ncosphi=msg.payload.cos_phi;\ncosphi=parseFloat(cosphi.toFixed(2));\nmsg.payload = {PAC,PDC,cosphi};\nmsg.topic = \"WR\";\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 530,
"y": 40,
"wires": [
[
"8b06bd35.b666c",
"f43170f9.378dc8",
"68e29c.70664d64"
]
]
},
{
"id": "3cf1eb5233154d32",
"type": "cronplus",
"z": "9fc0f809.f00518",
"name": "alle 2s",
"outputField": "payload",
"timeZone": "",
"persistDynamic": false,
"commandResponseMsgOutput": "output1",
"outputs": 1,
"options": [
{
"name": "an",
"topic": "an",
"payloadType": "bool",
"payload": "true",
"expressionType": "cron",
"expression": "*/2 * * * * *",
"location": "",
"offset": "0",
"solarType": "all",
"solarEvents": "sunrise,sunset"
}
],
"x": 90,
"y": 40,
"wires": [
[
"aa2ccdef.a81888"
]
]
},
{
"id": "a1b432331279e425",
"type": "modbus-client",
"name": "Kostal Plenticore",
"clienttype": "tcp",
"bufferCommands": true,
"stateLogEnabled": false,
"queueLogEnabled": false,
"tcpHost": "192.168.74.48",
"tcpPort": "1502",
"tcpType": "DEFAULT",
"serialPort": "/dev/ttyUSB",
"serialType": "RTU-BUFFERD",
"serialBaudrate": "9600",
"serialDatabits": "8",
"serialStopbits": "1",
"serialParity": "none",
"serialConnectionDelay": "100",
"serialAsciiResponseStartDelimiter": "0x3A",
"unit_id": 71,
"commandDelay": 5,
"clientTimeout": 1000,
"reconnectOnTimeout": true,
"reconnectTimeout": 2000,
"parallelUnitIdsAllowed": false
}
]
