setHost($config['host'])->setLog( function ($log){ echo(''.$log."
");} )->open();
// Manufacturer
// Address 40004 (corresponds to register 40005) length 8 registers (=16 bytes)
$response = $client->readMultipleHoldingRegisters()->setUnit($inverterDeviceId)->readFrom(40005-1,8);
$length = unpack("C",substr($response,0,1))[1];
echo "Laenge: $length\n";
$value = substr(rtrim($response,"\x00"),1);
echo "Value: ".htmlentities($value)."
";
// device id
$response = $client->readMultipleHoldingRegisters()->setUnit($inverterDeviceId)->readFrom(40021-1,16);
$length = unpack("C",substr($response,0,1))[1];
echo "Laenge: $length\n";
$value = substr(rtrim($response,"\x00"),1);
echo "Value: ".htmlentities($value)."
";
$client->close();
?>