diff --git a/framework/Foundation/ThingsGateway.Foundation.Adapter.OPCUA/OPCUAClient/OPCUAClient.cs b/framework/Foundation/ThingsGateway.Foundation.Adapter.OPCUA/OPCUAClient/OPCUAClient.cs
index 9f7249c08..ec256c8df 100644
--- a/framework/Foundation/ThingsGateway.Foundation.Adapter.OPCUA/OPCUAClient/OPCUAClient.cs
+++ b/framework/Foundation/ThingsGateway.Foundation.Adapter.OPCUA/OPCUAClient/OPCUAClient.cs
@@ -682,7 +682,7 @@ public class OPCUAClient : IDisposable
         }
 
         NodeId nodeToRead = new(nodeIdStr);
-        var node = (VariableNode)await ReadNodeAsync(nodeToRead, NodeClass.Variable, false, cancellationToken);
+        var node = (VariableNode)await ReadNodeAsync(nodeToRead, NodeClass.Unspecified, false, cancellationToken);
         await typeSystem.LoadType(node.DataType, true, false);
         _variableDicts.AddOrUpdate(nodeIdStr, node);
         return node;
@@ -784,6 +784,8 @@ public class OPCUAClient : IDisposable
                             attributeId == Attributes.Description ||
                             attributeId == Attributes.RolePermissions ||
                             attributeId == Attributes.UserRolePermissions ||
+                            attributeId == Attributes.DataTypeDefinition ||
+                            attributeId == Attributes.AccessLevelEx ||
                             attributeId == Attributes.UserWriteMask ||
                             attributeId == Attributes.WriteMask)
                         {