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[#71] Weighing: Fix reconnection behaviour when COM port is connected/disconnected

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This commit is contained in:
Lorenz Stechauner
2026-01-03 16:22:37 +01:00
parent c1697dc4f3
commit bf3cc2ea1e
12 changed files with 131 additions and 73 deletions
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18
Elwig/Helpers/Weighing/SysTecITScale.cs
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@@ -34,14 +34,14 @@ namespace Elwig.Helpers.Weighing {
var line = await Reader.ReadUntilAsync("\r\n");
if (LogPath != null) await File.AppendAllTextAsync(LogPath, line);
if (line == null || line.Length < 4 || !line.StartsWith('<') || !line.EndsWith(">\r\n")) {
throw new IOException("Invalid response from scale");
throw new FormatException("Invalid response from scale");
}
var error = line[1..3];
string msg = $"Unbekannter Fehler (Fehler code {error})";
if (error[0] == '0') {
if (error[1] != '0') {
throw new IOException($"Invalid response from scale (error code {error})");
throw new WeighingException($"Invalid response from scale (error code {error})");
}
} else if (error[0] == '1') {
switch (error[1]) {
@@ -52,21 +52,21 @@ namespace Elwig.Helpers.Weighing {
case '6': msg = "Drucker nicht bereit"; break;
case '7': msg = "Druckmuster enthält ungültiges Kommando"; break;
}
throw new IOException($"Waagenfehler {error}: {msg}");
throw new WeighingException($"Waagenfehler {error}: {msg}");
} else if (error[0] == '2') {
switch (error[1]) {
case '0': msg = "Brutto negativ"; break;
}
throw new IOException($"Fehler {error}: {msg}");
throw new WeighingException($"Fehler {error}: {msg}");
} else if (error[0] == '3') {
switch (error[1]) {
case '1': msg = "Übertragunsfehler"; break;
case '2': msg = "Ungültiger Befehl"; break;
case '3': msg = "Ungültiger Parameter"; break;
}
throw new IOException($"Kommunikationsfehler {error}: {msg}");
throw new WeighingException($"Kommunikationsfehler {error}: {msg}");
} else {
throw new IOException($"Invalid response from scale (error code {error})");
throw new WeighingException($"Invalid response from scale (error code {error})");
}
return line[1..^3];
@@ -76,7 +76,7 @@ namespace Elwig.Helpers.Weighing {
await SendCommand(incIdentNr ? $"RN{InternalScaleNr}" : $"RM{InternalScaleNr}");
string record = await ReceiveResponse();
if (record.Length != 62)
throw new IOException("Invalid response from scale: Received record has invalid size");
throw new FormatException("Invalid response from scale: Received record has invalid size");
var line = record[2..];
var status = line[ 0.. 2];
@@ -94,9 +94,9 @@ namespace Elwig.Helpers.Weighing {
var crc16 = line[52..60].Trim();
if (Utils.CalcCrc16Modbus(record[..54]) != ushort.Parse(crc16)) {
throw new IOException($"Invalid response from scale: Invalid CRC16 checksum ({crc16} != {Utils.CalcCrc16Modbus(record[..54])})");
throw new WeighingException($"Invalid response from scale: Invalid CRC16 checksum ({crc16} != {Utils.CalcCrc16Modbus(record[..54])})");
} else if (unit != "kg") {
throw new IOException($"Unsupported unit in weighing response: '{unit}'");
throw new WeighingException($"Unsupported unit in weighing response: '{unit}'");
}
identNr = identNr.Length > 0 && identNr != "0" ? identNr : null;