mehrere arten von registern
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@@ -71,6 +71,33 @@
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{ "caption": "LE", "value": "LE" }
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]
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}
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},
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{
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"caption": "Bit-Länge",
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"name": "BitLength",
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"width": "80px",
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"add": "16",
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"edit": {
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"type": "Select",
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"options": [
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{ "caption": "16 Bit", "value": "16" },
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{ "caption": "32 Bit", "value": "32" },
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{ "caption": "64 Bit", "value": "64" }
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]
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}
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},
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{
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"caption": "Signed/Unsigned",
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"name": "Signedness",
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"width": "100px",
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"add": "Unsigned",
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"edit": {
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"type": "Select",
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"options": [
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{ "caption": "Unsigned", "value": "Unsigned" },
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{ "caption": "Signed", "value": "Signed" }
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]
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}
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}
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]
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}
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@@ -4,9 +4,11 @@ declare(strict_types=1);
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/**
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* Sofar Wechselrichter Modul (IP-Symcon)
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*
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* - LoggerNumber wird als String gehalten, um Overflow zu vermeiden.
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* - Negative Skalierungen sind erlaubt.
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* - Beim Löschen eines Registers wird die zugehörige Variable automatisch entfernt.
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* - LoggerNumber als String (kein Integer-Overflow).
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* - Negative Skalierungen erlaubt.
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* - Bit-Länge pro Register (16, 32, 64) auswählbar.
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* - Signed/Unsigned pro Register wählbar.
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* - Gelöschte Register-Variablen werden entfernt.
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*/
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class SofarWechselrichter extends IPSModule
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{
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@@ -14,7 +16,7 @@ class SofarWechselrichter extends IPSModule
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{
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parent::Create();
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// Moduleigenschaften
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$this->RegisterPropertyString('IPAddress', '');
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$this->RegisterPropertyString('IPAddress', '172.31.70.80');
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$this->RegisterPropertyString('LoggerNumber', '0'); // als String
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$this->RegisterPropertyInteger('PollInterval', 60);
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$this->RegisterPropertyString('Registers', '[]'); // JSON-String
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@@ -38,7 +40,7 @@ class SofarWechselrichter extends IPSModule
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$registers = [];
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}
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// 1) Variablen anlegen (neu hinzugekommene)
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// 1) Variablen anlegen (neu hinzugekommene Register)
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$position = 10;
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foreach ($registers as $entry) {
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$regNo = (int) $entry['RegisterNumber'];
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@@ -53,22 +55,19 @@ class SofarWechselrichter extends IPSModule
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$position += 10;
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}
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// 2) Variablen löschen (falls entfernt)
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// Alle Kinder-IDs durchlaufen, Variablen mit Ident "Reg<Zahl>" entfernen,
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// wenn sie nicht mehr in $registers stehen.
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// 2) Variablen löschen (falls Register entfernt wurden)
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$validIdents = [];
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foreach ($registers as $entry) {
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$validIdents[] = 'Reg' . ((int)$entry['RegisterNumber']);
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}
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$children = IPS_GetChildrenIDs($this->InstanceID);
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foreach ($children as $childID) {
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// Nur Variablen berücksichtigen
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// Nur Variablen berücksichtigen (ObjectType = 2)
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$obj = IPS_GetObject($childID);
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if ($obj['ObjectType'] !== 2) {
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continue;
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}
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$ident = $obj['ObjectIdent']; // VariableIdent
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$ident = $obj['ObjectIdent'];
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if (substr($ident, 0, 3) === 'Reg') {
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if (!in_array($ident, $validIdents)) {
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IPS_DeleteVariable($childID);
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@@ -83,7 +82,7 @@ class SofarWechselrichter extends IPSModule
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}
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/**
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* Wird aufgerufen durch IPS_RequestAction über Timer
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* Wird aufgerufen durch IPS_RequestAction über den Timer
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*/
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public function RequestAction($Ident, $Value)
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{
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@@ -91,7 +90,6 @@ class SofarWechselrichter extends IPSModule
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case 'Query':
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$this->Query();
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break;
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default:
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throw new Exception('Ungültiger Ident: ' . $Ident);
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}
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@@ -123,49 +121,68 @@ class SofarWechselrichter extends IPSModule
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return;
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}
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// 4) Für jedes Register: auslesen, skalieren, in Variable schreiben
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// 4) Für jedes Register: auslesen, zusammenbauen, Skalierung, speichern
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foreach ($registers as $entry) {
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$regNo = (int) $entry['RegisterNumber'];
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$label = trim((string)$entry['Label']);
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$scale = (string) $entry['ScalingFactor']; // kann negativ sein
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$endian = strtoupper(trim((string)$entry['Endian']));
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$bitLength = (int) $entry['BitLength']; // 16, 32 oder 64
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$signedness = trim((string)$entry['Signedness']); // "Signed" oder "Unsigned"
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$ident = 'Reg' . $regNo;
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if ($regNo < 0 || $label === '') {
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if ($regNo < 0 || $label === '' || !in_array($bitLength, [16, 32, 64])) {
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continue;
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}
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try {
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$bytes = $this->readRegister($ip, $loggerNumberStr, $regNo);
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// Wert als UINT16 (BE oder LE)
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$numRegs = $bitLength / 16; // 1, 2 oder 4
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$bytes = $this->readRegisters($ip, $loggerNumberStr, $regNo, $numRegs);
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// bytes enthält dann (2 * $numRegs) Bytes
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$hex = strtoupper(bin2hex($bytes));
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// Endian-Handling: falls LE, kehre gesamte Byte-Reihenfolge um
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if ($endian === 'LE') {
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$arr = unpack('vvalue', $bytes); // Little-Endian
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} else {
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$arr = unpack('nvalue', $bytes); // Big-Endian
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$hex = $this->reverseByteOrder($hex);
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}
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$valueRaw = $arr['value'];
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// bc* für sichere Multiplikation auch bei großen Zahlen / negativer Skalierung
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$value = bcmul((string)$valueRaw, (string)$scale, 4);
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SetValueFloat($this->GetIDForIdent($ident), (float)$value);
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// Konvertiere Hex in Dezimal-String
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$rawDec = $this->hexToDecimal($hex);
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// Bei "Signed" → Zwei-Komplement-Umrechnung
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if ($signedness === 'Signed') {
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// 2^(bitLength - 1)
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$half = bcpow('2', (string)($bitLength - 1), 0);
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// 2^bitLength
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$fullRange = bcpow('2', (string)$bitLength, 0);
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if (bccomp($rawDec, $half) >= 0) {
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// rawDec - 2^bitLength
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$rawDec = bcsub($rawDec, $fullRange, 0);
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}
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}
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// Skaliere (bc*-Multiplikation, 4 Nachkommastellen)
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$valueStr = bcmul($rawDec, $scale, 4);
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SetValueFloat($this->GetIDForIdent($ident), (float)$valueStr);
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} catch (Exception $e) {
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$this->LogMessage("Fehler Lesen Reg {$regNo}: " . $e->getMessage(), KL_WARNING);
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$this->LogMessage("Fehler Lesen Reg {$regNo} ({$bitLength}bit, {$signedness}): " . $e->getMessage(), KL_WARNING);
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}
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}
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}
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/**
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* Liest ein einzelnes Register per Modbus-ähnlichem TCP (2 Bytes zurück)
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* Liest $numRegs aufeinanderfolgende Register per Modbus-ähnlichem TCP (2*$numRegs Bytes zurück)
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*
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* @param string $ip Inverter-IP
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* @param string $serial_nr_str Logger-Seriennummer als Dezimal-String
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* @param int $reg Register-Adresse
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* @return string 2 Byte binär
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* @param int $reg Start-Register-Adresse
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* @param int $numRegs Anzahl aufeinanderfolgender Register (1..4)
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* @return string Binär-String mit genau 2*$numRegs Bytes
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* @throws Exception Bei Kommunikationsfehlern
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*/
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private function readRegister(
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private function readRegisters(
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string $ip,
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string $serial_nr_str,
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int $reg
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int $reg,
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int $numRegs
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): string
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{
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// 1) Out_Frame ohne CRC aufbauen
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@@ -173,7 +190,6 @@ class SofarWechselrichter extends IPSModule
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// Dezimal-String → 8-stellige Hex
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$hexSN8 = $this->decStringToHex8($serial_nr_str);
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// Byte-Little-Endian: jeweils 2 Zeichen umkehren
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$hexSNbytes = [
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substr($hexSN8, 6, 2),
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substr($hexSN8, 4, 2),
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@@ -185,9 +201,9 @@ class SofarWechselrichter extends IPSModule
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// Data-Field (16 Hex-Zeichen konstant)
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$oFrame .= '020000000000000000000000000000';
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// Business-Field: 01 03 + Start-Register + Anzahl Register (1)
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// Business-Field: 01 03 + Start-Register + Anzahl Register ($numRegs)
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$startHex = str_pad(dechex($reg), 4, '0', STR_PAD_LEFT);
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$numHex = str_pad(dechex(1), 4, '0', STR_PAD_LEFT);
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$numHex = str_pad(dechex($numRegs), 4, '0', STR_PAD_LEFT);
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$oFrame .= '0103' . $startHex . $numHex;
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// 2) CRC16-Modbus über letzte 6 Bytes
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@@ -244,15 +260,15 @@ class SofarWechselrichter extends IPSModule
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throw new Exception("Keine Antwort vom Inverter erhalten.");
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}
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// 6) Slice-Logik: l = 6 ⇒ 2 Bytes Daten
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$lModbus = 6;
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$numBytes = 2;
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// 6) Slice-Logik: l = 2*$numRegs + 6, dann slice(-l, -4) liefert 2*$numRegs Bytes
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$lModbus = 2 * $numRegs + 6;
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$numBytes = 2 * $numRegs;
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if (strlen($response) < $lModbus) {
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throw new Exception("Unerwartet kurze Antwort (< {$lModbus} Bytes).");
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}
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$dataBytes = substr($response, -$lModbus, $numBytes);
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if (strlen($dataBytes) < 2) {
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throw new Exception("Data-Segment enthält weniger als 2 Bytes.");
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if (strlen($dataBytes) < $numBytes) {
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throw new Exception("Data-Segment enthält weniger als {$numBytes} Bytes.");
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}
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return $dataBytes;
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}
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@@ -279,6 +295,43 @@ class SofarWechselrichter extends IPSModule
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return str_pad($hex, 8, '0', STR_PAD_LEFT);
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}
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/**
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* Kehrt die Byte-Reihenfolge eines Hex-Strings um (2 Hex-Zeichen = 1 Byte).
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*
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* @param string $hex HexRepr (z.B. "A1B2C3D4")
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* @return string Umgekehrte ByteReihenfolge (z.B. "D4C3B2A1")
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*/
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private function reverseByteOrder(string $hex): string
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{
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$bytes = str_split($hex, 2);
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$bytes = array_reverse($bytes);
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return implode('', $bytes);
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}
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/**
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* Konvertiert einen Hex-String in einen Dezimal-String (BCMath).
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*
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* @param string $hex Uppercase-Hex ohne Präfix (z.B. "00FF10A3")
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* @return string Dezimal-String (z.B. "16737763")
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*/
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private function hexToDecimal(string $hex): string
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{
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$hex = ltrim($hex, '0');
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if ($hex === '') {
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return '0';
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}
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$len = strlen($hex);
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$dec = '0';
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$power16 = '1';
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for ($i = $len - 1; $i >= 0; $i--) {
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$digit = hexdec($hex[$i]);
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$term = bcmul((string)$digit, $power16, 0);
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$dec = bcadd($dec, $term, 0);
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$power16 = bcmul($power16, '16', 0);
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}
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return $dec;
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}
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/**
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* Berechnet CRC16-Modbus (Init=0xFFFF, Poly=0xA001) über Binärdaten.
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*/
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