mirror of
https://gitee.com/lircy/S7CommPlusV3Driver
synced 2026-03-23 23:16:34 +08:00
282 lines
11 KiB
C#
282 lines
11 KiB
C#
//#define _TEST_BASIC_VAR
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#define _TEST_PLCTAG
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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using System.Threading.Tasks;
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using S7CommPlusDriver;
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using S7CommPlusDriver.ClientApi;
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namespace DriverTest
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{
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class Program
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{
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static void Main(string[] args)
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{
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string HostIp = "192.168.0.250";
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string Password = "";
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int res;
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List<ItemAddress> readlist = new List<ItemAddress>();
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Console.WriteLine("Main - START");
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// Als Parameter lässt sich die IP-Adresse übergeben, sonst Default-Wert von oben
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if (args.Length >= 1) {
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HostIp = args[0];
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}
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// Als Parameter lässt sich das Passwort übergeben, sonst Default-Wert von oben (kein Passwort)
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if (args.Length >= 2) {
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Password = args[1];
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}
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Console.WriteLine("Main - Versuche Verbindungsaufbau zu: " + HostIp);
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S7CommPlusConnection conn = new S7CommPlusConnection();
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conn.OnlySecurePGOrPCAndHMI = false;
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System.Diagnostics.Stopwatch stopwatch1 = new System.Diagnostics.Stopwatch();
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stopwatch1.Start();
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res = conn.Connect(HostIp, Password);
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stopwatch1.Stop();
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byte[] var1_crc_bytes = { 0x88, 0xdd, 0xa4, 0x83, 0x34 };
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Console.WriteLine($"PLCType: {conn.PLCInformation.PLCType} | MLFB: {conn.PLCInformation.MLFB} | Firmware: {conn.PLCInformation.Firmware}");
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Console.WriteLine($"连接耗时{stopwatch1.ElapsedMilliseconds}ms.");
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if (res == 0)
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{
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Console.WriteLine("按任意键浏览变量");
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Console.ReadKey();
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Console.WriteLine("Main - Connect fertig");
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#region Variablenhaushalt browsen
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Console.WriteLine("Main - Starte Browse...");
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// Variablenhaushalt auslesen
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List<VarInfo> vars = new List<VarInfo>();
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res = conn.Browse(out vars);
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Console.WriteLine("Main - Browse res=" + res);
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#endregion
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List<VarInfo> vars_ = vars.GetRange(0, 1000);
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#if _TEST_PLCTAG
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#region Werte aller Variablen einlesen
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Console.WriteLine("Main - Lese Werte aller Variablen aus");
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List<PlcTag> taglist = new List<PlcTag>();
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foreach (var v in vars_)
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{
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ItemAddress itemAddress = new ItemAddress(v.AccessSequence);
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//S7p.DecodeUInt32Vlq(new MemoryStream(var1_crc_bytes), out itemAddress.SymbolCrc);
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taglist.Add(PlcTags.TagFactory(v.Name, itemAddress, v.Softdatatype));
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}
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if (res == 0)
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{
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Console.WriteLine("====================== VARIABLENHAUSHALT ======================");
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string formatstring = "{0,-80}{1,-30}{2,-20}{3,-20}";
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Console.WriteLine(String.Format(formatstring, "SYMBOLIC-NAME", "ACCESS-SEQUENCE", "TYP", "QC: VALUE"));
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for (int i = 0; i < vars_.Count; i++)
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{
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string s;
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s = String.Format(formatstring, taglist[i].Name, taglist[i].Address.GetAccessString(), Softdatatype.Types[taglist[i].Datatype], taglist[i].ToString());
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Console.WriteLine(s);
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}
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}
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#endregion
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Console.WriteLine("按任意键开始读或订阅");
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Console.ReadKey();
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res = conn.SubscriptionCreate(taglist, 100);
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if (res == 0)
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{
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Task.Run(() =>
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{
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conn.TestWaitForVariableChangeNotifications(50000000000);
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});
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}
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while (res == 0)
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{
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System.Diagnostics.Stopwatch stopwatch2 = new System.Diagnostics.Stopwatch();
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stopwatch2.Start();
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res = PlcTags.ReadTags(conn, taglist);
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stopwatch2.Stop();
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long ms = stopwatch2.ElapsedMilliseconds;
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if (res == 0)
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{
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string header = $"读取{vars_.Count}个变量耗时{ms}毫秒";
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Console.WriteLine(header);
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}
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//System.Threading.Thread.Sleep(50);
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}
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#endif
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#if _TEST_BASIC_VAR
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#region Werte aller Variablen einlesen
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Console.WriteLine("Main - Lese Werte aller Variablen aus");
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foreach (var v in vars)
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{
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readlist.Add(new ItemAddress(v.AccessSequence));
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}
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List<object> values = new List<object>();
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List<UInt64> errors = new List<UInt64>();
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// Fehlerhafte Variable setzen
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//readlist[2].LID[0] = 123;
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res = conn.ReadValues(readlist, out values, out errors);
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#endregion
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#region Variablenhaushalt mit Werten ausgeben
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if (res == 0)
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{
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Console.WriteLine("====================== VARIABLENHAUSHALT ======================");
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// Liste ausgeben
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string formatstring = "{0,-80}{1,-30}{2,-20}{3,-20}";
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Console.WriteLine(String.Format(formatstring, "SYMBOLIC-NAME", "ACCESS-SEQUENCE", "TYP", "VALUE"));
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for (int i = 0; i < vars.Count; i++)
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{
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string s = String.Format(formatstring, vars[i].Name, vars[i].AccessSequence, Softdatatype.Types[vars[i].Softdatatype], values[i]);
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Console.WriteLine(s);
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}
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Console.WriteLine("===============================================================");
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}
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#endregion
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#endif
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/*
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#region Test: Wert schreiben
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List<PValue> writevalues = new List<PValue>();
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PValue writeValue = new ValueInt(8888);
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writevalues.Add(writeValue);
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List<ItemAddress> writelist = new List<ItemAddress>();
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writelist.Add(new ItemAddress("8A0E0001.F"));
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errors.Clear();
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res = conn.WriteValues(writelist, writevalues, out errors);
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Console.WriteLine("res=" + res);
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#endregion
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*/
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/*
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#region Test: Absolutadressen lesen
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// Daten aus nicht "optimierten" Datenbausteinen lesen
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readlist.Clear();
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ItemAddress absAdr = new ItemAddress();
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absAdr.SetAccessAreaToDatablock(100); // DB 100
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absAdr.SymbolCrc = 0;
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absAdr.AccessSubArea = Ids.DB_ValueActual;
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absAdr.LID.Add(3); // LID_OMS_STB_ClassicBlob
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absAdr.LID.Add(0); // Blob Start Offset, Anfangsadresse
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absAdr.LID.Add(20); // 20 Bytes
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readlist.Add(absAdr);
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values.Clear();
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errors.Clear();
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res = conn.ReadValues(readlist, out values, out errors);
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Console.WriteLine(values.ToString());
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#endregion
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*/
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#region Test: SPS in Stopp setzen
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Console.WriteLine("Setze SPS in STOP...");
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conn.SetPlcOperatingState(1);
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Console.WriteLine("Taste drücken um wieder in RUN zu setzen...");
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Console.ReadKey();
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Console.WriteLine("Setze SPS in RUN...");
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conn.SetPlcOperatingState(3);
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#endregion
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conn.Disconnect();
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}
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else
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{
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Console.WriteLine("Main - Connect fehlgeschlagen!");
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}
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Console.WriteLine("Main - ENDE. Bitte Taste drücken.");
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Console.ReadKey();
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}
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}
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public static class S7SymbolCrc32
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{
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private const uint Polynomial = 0xFA567993; // 多项式(x³² + x³¹ + x³⁰ + x²⁹ + x²⁸ + x²⁶ + x²³ + x²¹ + x¹⁹ + x¹⁸ + x¹⁵ + x¹⁴ + x¹³ + x¹² + x⁹ + x⁸ + x⁴ + x + 1)
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private const uint InitialValue = 0xFFFFFFFF;
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private static readonly uint[] Table;
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static S7SymbolCrc32()
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{
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// 预计算CRC表
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Table = new uint[256];
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for (uint i = 0; i < 256; i++)
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{
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uint crc = i << 24;
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for (int j = 0; j < 8; j++)
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{
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if ((crc & 0x80000000) != 0)
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{
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crc = (crc << 1) ^ Polynomial;
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}
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else
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{
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crc <<= 1;
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}
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}
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Table[i] = crc;
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}
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}
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/// <summary>
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/// 计算S7CommPlus符号名的CRC32校验和
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/// </summary>
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/// <param name="symbolName">符号名（如"DB1.TempBottom"）</param>
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/// <param name="dataType">数据类型字节</param>
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/// <returns>CRC32校验和</returns>
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public static uint CalculateSymbolCrc(string symbolName)
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{
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// 1. 替换分隔符 '.' → 0x09
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string processedName = symbolName.Replace('.', '\t');
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// 2. 转换为字节数组
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byte[] nameBytes = Encoding.ASCII.GetBytes(processedName);
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// 3. 添加数据类型字节
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byte[] data = new byte[nameBytes.Length];
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Array.Copy(nameBytes, 0, data, 0, nameBytes.Length);
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// 4. 计算CRC32
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uint crc = InitialValue;
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foreach (byte b in data)
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{
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crc = (crc << 8) ^ Table[((crc >> 24) & 0xFF) ^ b];
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}
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// 5. 根据作者提示，可能需要再次计算（需要验证）
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//crc = CalculateSecondPass(crc);
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return crc;
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}
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// 如果需要二次计算的方法
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public static uint CalculateSecondPass(uint firstResult)
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{
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byte[] crcBytes = BitConverter.GetBytes(firstResult);
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if (BitConverter.IsLittleEndian)
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{
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Array.Reverse(crcBytes); // 确保大端序
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}
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uint crc = InitialValue;
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foreach (byte b in crcBytes)
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{
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crc = (crc << 8) ^ Table[((crc >> 24) & 0xFF) ^ b];
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}
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return crc;
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}
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}
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}
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