Hallo Gemeinschaft
Ich plage mich nun schon seit einiger Zeit mit der Abfrage von aktuellen Daten eines Solar Wechselrichters. Wer kennt sich hierbei besser aus?!
Verwendete HW: NodeMCU (ESP-12E)
Aktueller Stand: WiFi Verbindung funktioniert.
Hier die Angaben des Hersteller...
Protocol description (request/respond)
Each inverter has an individual RS485 bus address (valid range: 1 .. 220 and 255 in
delivery state), which is required for communication. In order to query the operating values
of an inverter, a TCP connection to port 81 of the inverter is first established. In the
process, the inverter is addressed with its IP address or its name (broken down via
NetBIOS). A request package is then sent to the device. One receives a response
package containing the desired operating data as an answer. Additional requests/answers
can follow before the connection is closed again.
Was und wie muss ich das nun an den Server schicken?
Aktueller Code snipp...
uint8_t daily_energy[8] = {0x62,0xDC,0x03,0xDC,0x00,0x57,0x00,0x00}; // Request package
const char* host = "192.168.100.24";
int httpPort=81;
// Verbindung zu Server aufbauen (Socket)
client.connect(host, httpPort)
// Senden der Daten
client.write((const uint8_t *)daily_energy,8);
client.write("\n\r");
delay(500); // Can be changed
// Lesen der Daten (Response package)
while (client.available()) {
String line = client.readStringUntil('\r');
Serial.print(line);
}
Ausgabe nach Ausführung:
connecting to 192.168.100.24
ERR1
Wer kann helfen?
Daaaanke, Horst