磁导航1.0内部交管和信号交互

StandardScene.Signal/Plc/SiemensPlcSession.cs

@@ -25,7 +25,7 @@ namespace StandardScene.Signal.Plc
         private SiemensClient _client;
         private readonly object _sync = new object();
 
-        /// <param name="version">进程字段 PlcVersion，如 S7_1500。</param>
+        /// <param name="version">西门子系列名，如 S7_1500；空或无法解析时默认 S7_1500。</param>
         /// <param name="ip">机构 IP。</param>
         /// <param name="port">S7 端口，通常 102。</param>
         /// <param name="slot">机架槽号，S7-1500 常见 1。</param>
@@ -103,6 +103,26 @@ namespace StandardScene.Signal.Plc
             }
         }
 
+        /// <summary>从起始字节连续读 length 字节，用于工位 BOOL 拆位。</summary>
+        public bool TryReadBytes(string startAddress, ushort length, out byte[] data)
+        {
+            data = Array.Empty<byte>();
+            if (string.IsNullOrWhiteSpace(startAddress) || length == 0 || !EnsureOpen())
+                return false;
+            try
+            {
+                var r = _client.Read(NormalizeByteAddress(startAddress), length, false);
+                if (r == null || !r.IsSucceed || r.Value == null)
+                    return false;
+                data = r.Value;
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
         /// <summary>读心跳位。地址不做 DBB 转换。</summary>
         public bool TryReadBool(string address, out bool value)
         {