重构项目，将项目拆分（临时提交）

DMS.WPF/Helper/SiemensHelper.cs

@@ -0,0 +1,70 @@
+namespace DMS.Helper;
+
+/// <summary>
+/// 西门子帮助类
+/// </summary>
+public static class SiemensHelper
+{
+    /// <summary>
+    /// 将S7数据类型字符串转换为C#数据类型字符串
+    /// </summary>
+    /// <param name="s7Type">S7数据类型字符串</param>
+    /// <returns>对应的C#数据类型字符串</returns>
+    public static string S7ToCSharpTypeString(string s7Type)
+    {
+        switch (s7Type.ToUpper())
+        {
+            case "BOOL":
+                return "bool";
+            case "BYTE":
+                return "byte";
+            case "WORD":
+                return "ushort";
+            case "DWORD":
+                return "uint";
+            case "INT":
+                return "short";
+            case "DINT":
+                return "int";
+            case "REAL":
+                return "float";
+            case "LREAL":
+                return "double";
+            case "CHAR":
+                return "char";
+            case "STRING":
+                return "string";
+            case "TIMER":
+            case "TIME":
+                return "TimeSpan";
+            case "COUNTER":
+                return "ushort";
+            case "DATE":
+                return "DateTime";
+            case "TIME_OF_DAY":
+            case "TOD":
+                return "DateTime";
+            case "DATE_AND_TIME":
+            case "DT":
+                return "DateTime";
+            default:
+                return "object";
+        }
+    }
+
+    /// <summary>
+    /// 将S7读取到的值转换为显示值
+    /// </summary>
+    /// <param name="value">S7读取到的原始值</param>
+    /// <param name="dataType">变量的数据类型</param>
+    /// <param name="conversion">转换规则</param>
+    /// <returns>显示值</returns>
+    public static string ConvertS7Value(object value, string dataType, string conversion)
+    {
+        if (value == null) return string.Empty;
+
+        // For now, a simple conversion to string. More complex logic can be added here.
+        // Based on dataType and conversion, you might parse, format, or apply formulas.
+        return value.ToString();
+    }
+}