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Fix Waagen

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This commit is contained in:
Lorenz Stechauner
2023-08-11 18:46:58 +02:00
parent c65ffaf161
commit 041e674af9
3 changed files with 87 additions and 25 deletions
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60
Elwig/Helpers/Utils.cs
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@ -8,6 +8,7 @@ using System.Text.RegularExpressions;
using System.IO.Ports;
using System.Net.Sockets;
using Elwig.Dialogs;
using System.Text;
namespace Elwig.Helpers {
public static partial class Utils {
@ -26,6 +27,41 @@ namespace Elwig.Helpers {
[GeneratedRegex("^tcp://([A-Za-z0-9._-]+):([0-9]+)$", RegexOptions.Compiled)]
private static partial Regex GeneratedTcpRegex();
private static readonly ushort[] Crc16ModbusTable = {
0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040,
};
public static SerialPort OpenSerialConnection(string connection) {
var m = SerialRegex.Match(connection);
if (!m.Success)
@ -45,8 +81,8 @@ namespace Elwig.Helpers {
DataBits = data == "" ? 8 : int.Parse(data),
StopBits = (StopBits)(stop == "" ? 1 : stop == "1.5" ? 3 : stop[0] - '0'),
Handshake = Handshake.None,
ReadTimeout = 1000,
WriteTimeout = 1000,
WriteTimeout = 250,
ReadTimeout = 11000,
};
port.Open();
return port;
@ -58,8 +94,8 @@ namespace Elwig.Helpers {
throw new ArgumentException("Invalid connection string for scheme \"tcp\"");
var client = new TcpClient() {
SendTimeout = 1000,
ReceiveTimeout = 1000,
SendTimeout = 250,
ReceiveTimeout = 11000,
};
client.Connect(m.Groups[1].Value, int.Parse(m.Groups[2].Value));
return client;
@ -74,6 +110,22 @@ namespace Elwig.Helpers {
return a.Select(ch => ch - '0').Aggregate((sum, n) => (sum * 10 + n) % b);
}
public static ushort CalcCrc16Modbus(byte[] data) {
// https://www.modbustools.com/modbus_crc16.htm
byte temp;
ushort crc = 0xFFFF;
foreach (byte b in data) {
temp = (byte)(b ^ crc);
crc >>= 8;
crc ^= Crc16ModbusTable[temp];
}
return crc;
}
public static ushort CalcCrc16Modbus(string data) {
return CalcCrc16Modbus(Encoding.ASCII.GetBytes(data));
}
public static void RunBackground(string title, Func<Task> a) {
Task.Run(async () => {
try {

44
Elwig/Helpers/Weighing/SystecScale.cs
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@ -4,7 +4,6 @@ using System.IO.Ports;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
namespace Elwig.Helpers.Weighing {
public class SystecScale : IScale {
@ -76,12 +75,12 @@ namespace Elwig.Helpers.Weighing {
throw new ArgumentException("Invalid value for argument empty");
}
public async Task SendCommand(string command) {
protected async Task SendCommand(string command) {
byte[] bytes = Encoding.ASCII.GetBytes($"<{command}>");
await Stream.WriteAsync(bytes);
}
public async Task<string> ReceiveResponse() {
protected async Task<string> ReceiveResponse() {
string? line = null;
using (var reader = new StreamReader(Stream, Encoding.ASCII, false, -1, true)) {
line = await reader.ReadLineAsync();
@ -93,7 +92,7 @@ namespace Elwig.Helpers.Weighing {
var error = line[1..3];
if (error[0] == '0') {
if (error[1] != '0') {
throw new IOException($"Invalid response from scale (error code {error}");
throw new IOException($"Invalid response from scale (error code {error})");
}
} else if (error[0] == '1') {
string msg = $"Unbekannter Fehler (Fehler code {error})";
@ -118,32 +117,41 @@ namespace Elwig.Helpers.Weighing {
throw new IOException($"Invalid response from scale (error code {error})");
}
return line[3..(line.Length - 1)];
return line[1..(line.Length - 1)];
}
protected async Task<WeighingResult> Weigh(bool incIdentNr) {
await SendCommand(incIdentNr ? $"RM{InternalScaleNr}" : $"RN{InternalScaleNr}");
string line = await ReceiveResponse();
await SendCommand(incIdentNr ? $"RN{InternalScaleNr}" : $"RM{InternalScaleNr}");
string record = await ReceiveResponse();
if (record.Length != 62)
throw new IOException("Invalid response from scale: Received record has invalid size");
var line = record[2..];
var status = line[ 0.. 2];
var date = line[ 2..10];
var time = line[10..15];
var identNr = line[15..19];
var identNr = line[15..19].Trim();
var scaleNr = line[19..20];
var brutto = line[20..28];
var tara = line[28..36];
var netto = line[36..44];
var brutto = line[20..28].Trim();
var tara = line[28..36].Trim();
var netto = line[36..44].Trim();
var unit = line[44..46];
var taraCode = line[46..48];
var zone = line[48..49];
var terminalNr = line[49..52];
var crc16 = line[52..60];
var zone = line[48..49].Trim();
var terminalNr = line[49..52].Trim();
var crc16 = line[52..60].Trim();
if (Utils.CalcCrc16Modbus(record[..54]).ToString() != crc16) {
throw new IOException($"Invalid response from scale: Invalid CRC16 checksum ({crc16} != {Utils.CalcCrc16Modbus(record[..54]).ToString()})");
} else if (unit != "kg") {
throw new IOException($"Unsupported unit in weighing response: '{unit}'");
}
return new() {
Weight = int.TryParse(netto.Trim(), out int w) ? w : null,
WeighingId = identNr.Trim().Length > 0 ? identNr.Trim() : null,
Date = date,
Time = time,
Weight = int.TryParse(netto, out int w) ? w : null,
WeighingId = identNr.Length > 0 && identNr != "0" ? identNr : null,
Date = DateOnly.Parse(date),
Time = TimeOnly.Parse(time),
};
}

8
Elwig/Helpers/Weighing/WeighingResult.cs
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@ -1,3 +1,5 @@
using System;
namespace Elwig.Helpers.Weighing {
/// <summary>
/// Result of a weighing process on an industrial scale
@ -16,17 +18,17 @@ namespace Elwig.Helpers.Weighing {
/// <summary>
/// Date string provided by the scale
/// </summary>
public string? Date = null;
public DateOnly? Date = null;
/// <summary>
/// Time string provided by the scale
/// </summary>
public string? Time = null;
public TimeOnly? Time = null;
/// <returns>&lt;Weight/WeighingId/Date/Time&gt;</returns>
override public string ToString() {
var w = Weight != null ? $"{Weight}kg" : "";
return $"<{w}/{WeighingId}/{Date}/{Time}>";
return $"<{w}/{WeighingId}/{Date:yyyy-MM-dd}/{Time:HH:mm}>";
}
}
}