Kostal Piko 5.5

General
1

Hi, I'm really new here and just started with Nod-red.
Is there someone who can give a complete designed flow to read registers from a Piko 5.5 inverter with a modbus tcp module.

Kostal give this example

*Request telegram to sent: *
05 62 DE A0 03 03 45 D8 00

and then read back

*Response from the inverter: *
05 E2 DE A0 03 03 B8 0B 01 02 DA 00

please can help someone?

2 
[{"id":"8965da2b608c8eaa","type":"inject","z":"b24c5013a9edd351","name":"5s Abfrage","props":[{"p":"payload"}],"repeat":"5","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"true","payloadType":"bool","x":110,"y":880,"wires":[["2f79a03d047ec597"]]},{"id":"2f79a03d047ec597","type":"http request","z":"b24c5013a9edd351","name":"Kostal Piko","method":"GET","ret":"txt","paytoqs":"ignore","url":"http://192.168.178.21/api/dxs.json?dxsEntries=67109120&dxsEntries=251658753&dxsEntries=33556736","tls":"","persist":false,"proxy":"","insecureHTTPParser":false,"authType":"","senderr":false,"headers":[],"credentials":{},"x":310,"y":880,"wires":[["2805970b63b3edc7"]]},{"id":"2805970b63b3edc7","type":"json","z":"b24c5013a9edd351","name":"","property":"payload","action":"","pretty":false,"x":490,"y":880,"wires":[["d03daf52d26fbb2d"]]},{"id":"d03daf52d26fbb2d","type":"function","z":"b24c5013a9edd351","name":"Leistung PV","func":"let msg1 = {};\nlet msg2 = {};\nlet msg3 = {};\nlet msg4 = {};\nlet PAC = Math.round(msg.payload.dxsEntries[0].value);\nlet PAC2 = Math.round(PAC/3);\nlet W = msg.payload.dxsEntries[1].value;\nW = parseFloat(W.toFixed(2));\nlet PDC = Math.round(msg.payload.dxsEntries[2].value);\nmsg1.payload = {\"value\":PAC};\nmsg2.payload = {\"value\":PAC2};\nmsg3.payload = {\"value\":W};\nmsg4.payload = {PAC,PDC,W};\nreturn [msg1,msg2,msg3,msg4]","outputs":4,"noerr":0,"initialize":"","finalize":"","libs":[],"x":710,"y":880,"wires":[["04b169526ed36b8b"],["6cb8571daa363c76","93b6ace711557da5","a4fda0cdb4093e3b"],["50ed907ba88ce35f"],["18a30536538863a7"]]}]

edit your IP adress

3

Hello Becker, great your anwser.
This is goes work with TCP connection.
I want to do a power control of the PV and I thought that this only go with Modbus RTU do you know?
Do you have the complete API information of dxsEntries for Kostal Piko-converters or where I can find it?

4

I build these a few years ago for a friend, who has a Kostal Piko inverter.
I don´t have any more informations about the dxs sry.