本项目隶属于 HslCommunication 项目的SDK套件，如果不清楚HslCommunication组件的话，可以先了解那个项目，源代码地址：

 

本项目源代码地址：https://github.com/dathlin/SharpNodeSettings

本项目的主要实现的功能主要有2个：

1. 实现单个设备信息的可配置，可存储，采用一个相对标准的Xml存储机制实现，适用的场景是：如果你有20个西门子PLC（种类需要一致），但是PLC的ip地址不一致，或是具体的型号不一致，需要进行可视化的存储
2. 实现一个数据网关中心，内置了一个自身协议的网络，当然您也可以实现其他的，比如示例项目里的Redis数据网关，OPC UA数据网关。

 

本项目的所有的核心构建，都是围绕一定格式的Xml文件展开的，以 NodeClass 作为节点的基类，赋予每个节点 Name 值，Description 值，节点下可以跟随子节点，或是跟随设备节点，设备下可以跟随请求节点，多说无益，直接上代码

以上就是一个示例的XML文件，手动创建这样的一个数据表将会是难以想象的，所以本组件提供了可视化的数据创建中心，

Form nodeSettings = new SharpNodeSettings.View.FormNodeSetting( "settings.xml" )nodeSettings.ShowDialog();

这样就可以显示一个窗体，显示节点配置信息了。

不仅可以配置左侧的节点，设备信息，还支持配置解析规则和可视化的显示，辅助你找到正确的字节索引。点击保存，即可生成上述示例的一个xml配置表。

 

 

我们有了这个配置文件后，如何才能解析出来，并且生成相应的设备呢？

我们可以调用 SharpNodeServer 来创建服务器应用，可以生成相应的节点信息，并且根据配置信息来请求设备，更新对应的数据。创建服务器的代码如下：

SharpNodeServer sharpNodeServer = new SharpNodeServer( );sharpNodeServer.LoadByXmlFile( "settings.xml" );sharpNodeServer.ServerStart( 12345 );

　　

这样就启动了一个最简单的服务器，主要包含实例化，加载配置，启动服务器，注意：加载配置必须放置到服务器启动之前。

 

怎样查看服务器的数据呢？内置了一个默认的 SimplifyNet 服务器，想要知道更多的这个服务器的内容，可以参照下面的博客：

基于 NetSimplifyClient 实现了一个通用的数据节点查看器，需要指定服务器的Ip地址和端口号：

SharpNodeSettings.View.FormNodeView form = new SharpNodeSettings.View.FormNodeView( "127.0.0.1",12345 );form.ShowDialog();

　　

 

如果你想实现访问单个的数据，可以使用 NetSimplifyClient 创建的Demo来访问，需要注意的是，此处请求的数据都是序列化的JSON字符串。 

 

 

在实际开发中，可能你不需要上述的配置功能，你就想实现某个PLC的设备信息是可配置的，那么也可以通过本组件实现：

SharpNodeSettings.View.FormSelectDevice selectDevice = new View.FormSelectDevice( );if (selectDevice.ShowDialog( ) == DialogResult.OK){    XElement xmlDevice = selectDevice.DeviceXml;    // 设备的配置对象可用于存储，网络传输等等操作    // 如果想要通过xml信息创建设备    SharpNodeSettings.Device.DeviceCore deviceCore = SharpNodeSettings.Util.CreateFromXElement( xmlDevice );    // 演示读取数据，此处有个问题在于如果是相同种类的PLC，应用还是很方便的，如果是不同种类的，地址模型就比较麻烦。    HslCommunication.OperateResult
     
       read = deviceCore.ReadWriteDevice.ReadInt16( "D100" );}
     

　　

 

Quick Start

按照如下的步骤走，就可以急速体验本项目所传达的核心功能价值，就可以明白本项目是否符合您的需求。启动测试之前，你需要准备个真实的设备：

• 西门子PLC
• 三菱PLC
• 欧姆龙PLC
• ModbusTcp设备

如果您没有真实的设备，也可以从网上下载个Modbus服务器软件，这里也提供一个下载地址：

下载完成后启动服务器即可。

配置Xml信息

去本项目的目录下配置设备的信息: \SharpNodeSettings\XmlFile 运行 SharpNodeSettings.Tools.exe 进行配置，已经配置了一部分，如果想要快速开始，忽略本步骤也可以。

SampleServer

本示例直接重新生成 SampleServer 项目，启动程序即可。如果想要看实际的数据信息，启动 SharpNodeSettings.NodeView项目查看 

RedisServer

本示例是在 SampleServer 的基础上添加了Redis服务器，所以需要先安装好Redis服务器，windows版本下载地址：

当然，最好再下载安装一个redis服务器的可视化工具，此处推荐 RedisDesktopManager

然后基于本项目，重新生成 SharpNodeSettings.RedisServer 项目，启动服务器

上述的 SharpNodeSettings.NodeView 项目依然可以查看，然后下图演示Redis

 

OpcUaServer

本示例是演示从PLC采集数据并且写入到OPC UA服务器中的示例，重新生成 SharpNodeSettings.OpcUaServer 项目，启动它，如果显示是否增加信任证书时，选择是即可。

 

首先创建OPC UA服务器项目的时候，需要根据xml文件创建对应的OPC UA节点，这部分还是比较麻烦的

#region INodeManager Members        /// 
        /// Does any initialization required before the address space can be used.        /// 
        /// 
     
              /// The externalReferences is an out parameter that allows the node manager to link to nodes        /// in other node managers. For example, the 'Objects' node is managed by the CoreNodeManager and        /// should have a reference to the root folder node(s) exposed by this node manager.          /// 
             public override void CreateAddressSpace( IDictionary
     
      > externalReferences )        {            lock (Lock)            {                LoadPredefinedNodes( SystemContext, externalReferences );                IList
      
        references = null;                if (!externalReferences.TryGetValue( ObjectIds.ObjectsFolder, out references ))                {                    externalReferences[ObjectIds.ObjectsFolder] = references = new List
       
        ( );                }                dict_BaseDataVariableState = new Dictionary
        
         ( );                try                {                    // =========================================================================================                    //                     // 此处需要加载本地文件，并且创建对应的节点信息，                    //                     // =========================================================================================                    sharpNodeServer = new SharpNodeServer( );                    sharpNodeServer.WriteCustomerData = ( Device.DeviceCore deviceCore, string name ) =>                    {                        string opcNode = "ns=2;s=" + string.Join( "/", deviceCore.DeviceNodes ) + "/" + name;                        lock (Lock)                        {                            if (dict_BaseDataVariableState.ContainsKey( opcNode ))                            {                                dict_BaseDataVariableState[opcNode].Value = deviceCore.GetDynamicValueByName( name );                                dict_BaseDataVariableState[opcNode].ClearChangeMasks( SystemContext, false );                            }                        }                    };                    XElement element = XElement.Load( "settings.xml" );                    dicRegularItemNode = SharpNodeSettings.Util.ParesRegular( element );                    AddNodeClass( null, element, references );                    // 加载配置文件之前设置写入方法                    sharpNodeServer.LoadByXmlFile( "settings.xml" );                    // 最后再启动服务器信息                    sharpNodeServer.ServerStart( 12345 );                }                catch (Exception e)                {                    Utils.Trace( e, "Error creating the address space." );                }            }        }        private void AddNodeClass( NodeState parent, XElement nodeClass, IList
         
           references )        {            foreach (var xmlNode in nodeClass.Elements( ))            {                if (xmlNode.Name == "NodeClass")                {                    SharpNodeSettings.Node.NodeBase.NodeClass nClass = new SharpNodeSettings.Node.NodeBase.NodeClass( );                    nClass.LoadByXmlElement( xmlNode );                    FolderState son;                    if (parent == null)                    {                        son = CreateFolder( null, nClass.Name );                        son.Description = nClass.Description;                        son.AddReference( ReferenceTypes.Organizes, true, ObjectIds.ObjectsFolder );                        references.Add( new NodeStateReference( ReferenceTypes.Organizes, false, son.NodeId ) );                        son.EventNotifier = EventNotifiers.SubscribeToEvents;                        AddRootNotifier( son );                                                AddNodeClass( son, xmlNode, references );                        AddPredefinedNode( SystemContext, son );                    }                    else                    {                        son = CreateFolder( parent, nClass.Name, nClass.Description );                        AddNodeClass( son, xmlNode, references );                    }                }                else if (xmlNode.Name == "DeviceNode")                {                    AddDeviceCore( parent, xmlNode );                }                else if (xmlNode.Name == "Server")                {                    AddServer( parent, xmlNode, references );                }            }        }        private void AddDeviceCore( NodeState parent, XElement device )        {            if (device.Name == "DeviceNode")            {                // 提取名称和描述信息                string name = device.Attribute( "Name" ).Value;                string description = device.Attribute( "Description" ).Value;                // 创建OPC节点                FolderState deviceFolder = CreateFolder( parent, device.Attribute( "Name" ).Value, device.Attribute( "Description" ).Value );                // 添加Request                foreach (var requestXml in device.Elements( "DeviceRequest" ))                {                    DeviceRequest deviceRequest = new DeviceRequest( );                    deviceRequest.LoadByXmlElement( requestXml );                                        AddDeviceRequest( deviceFolder, deviceRequest );                }            }        }        private void AddServer( NodeState parent, XElement xmlNode, IList
          
            references ) { int serverType = int.Parse( xmlNode.Attribute( "ServerType" ).Value ); if (serverType == ServerNode.ModbusServer) { NodeModbusServer serverNode = new NodeModbusServer( ); serverNode.LoadByXmlElement( xmlNode ); FolderState son = CreateFolder( parent, serverNode.Name, serverNode.Description ); AddNodeClass( son, xmlNode, references ); } else if (serverType == ServerNode.AlienServer) { AlienServerNode alienNode = new AlienServerNode( ); alienNode.LoadByXmlElement( xmlNode ); FolderState son = CreateFolder( parent, alienNode.Name, alienNode.Description ); AddNodeClass( son, xmlNode, references ); } } private void AddDeviceRequest( NodeState parent, DeviceRequest deviceRequest ) { // 提炼真正的数据节点 if (!dicRegularItemNode.ContainsKey( deviceRequest.PraseRegularCode )) return; List
           
             regularNodes = dicRegularItemNode[deviceRequest.PraseRegularCode]; foreach (var regularNode in regularNodes) { if (regularNode.RegularCode == RegularNodeTypeItem.Bool.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Boolean, ValueRanks.Scalar, default( bool ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Boolean, ValueRanks.OneDimension, new bool[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.Byte.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Byte, ValueRanks.Scalar, default( byte ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Byte, ValueRanks.OneDimension, new byte[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.Int16.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Int16, ValueRanks.Scalar, default( short ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Int16, ValueRanks.OneDimension, new short[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.UInt16.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.UInt16, ValueRanks.Scalar, default( ushort ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.UInt16, ValueRanks.OneDimension, new ushort[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.Int32.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Int32, ValueRanks.Scalar, default( int ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Int32, ValueRanks.OneDimension, new int[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.UInt32.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.UInt32, ValueRanks.Scalar, default( uint ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.UInt32, ValueRanks.OneDimension, new uint[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.Float.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Float, ValueRanks.Scalar, default( float ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Float, ValueRanks.OneDimension, new float[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.Int64.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Int64, ValueRanks.Scalar, default( long ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Int64, ValueRanks.OneDimension, new long[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.UInt64.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.UInt64, ValueRanks.Scalar, default( ulong ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.UInt64, ValueRanks.OneDimension, new ulong[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.Double.Code) { if (regularNode.TypeLength == 1) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Double, ValueRanks.Scalar, default( double ) ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } else { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.Double, ValueRanks.OneDimension, new double[regularNode.TypeLength] ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } else if (regularNode.RegularCode == RegularNodeTypeItem.StringAscii.Code || regularNode.RegularCode == RegularNodeTypeItem.StringUnicode.Code || regularNode.RegularCode == RegularNodeTypeItem.StringUtf8.Code) { var dataVariableState = CreateBaseVariable( parent, regularNode.Name, regularNode.Description, DataTypeIds.String, ValueRanks.OneDimension, string.Empty ); dict_BaseDataVariableState.Add( dataVariableState.NodeId.ToString( ), dataVariableState ); } } } /// 
            
 /// 创建一个新的节点，节点名称为字符串 /// 
 protected FolderState CreateFolder( NodeState parent, string name ) { return CreateFolder( parent, name, string.Empty ); } /// 
            
 /// 创建一个新的节点，节点名称为字符串 /// 
 protected FolderState CreateFolder( NodeState parent, string name, string description ) { FolderState folder = new FolderState( parent ); folder.SymbolicName = name; folder.ReferenceTypeId = ReferenceTypes.Organizes; folder.TypeDefinitionId = ObjectTypeIds.FolderType; folder.Description = description; if (parent == null) { folder.NodeId = new NodeId( name, NamespaceIndex ); } else { folder.NodeId = new NodeId( parent.NodeId.ToString( ) + "/" + name ); } folder.BrowseName = new QualifiedName( name, NamespaceIndex ); folder.DisplayName = new LocalizedText( name ); folder.WriteMask = AttributeWriteMask.None; folder.UserWriteMask = AttributeWriteMask.None; folder.EventNotifier = EventNotifiers.None; if (parent != null) { parent.AddChild( folder ); } return folder; } /// 
            
 /// 创建一个值节点，类型需要在创建的时候指定 /// 
 protected BaseDataVariableState CreateBaseVariable( NodeState parent, string name, string description, NodeId dataType, int valueRank, object defaultValue ) { BaseDataVariableState variable = new BaseDataVariableState( parent ); variable.SymbolicName = name; variable.ReferenceTypeId = ReferenceTypes.Organizes; variable.TypeDefinitionId = VariableTypeIds.BaseDataVariableType; if (parent == null) { variable.NodeId = new NodeId( name, NamespaceIndex ); } else { variable.NodeId = new NodeId( parent.NodeId.ToString( ) + "/" + name ); } variable.Description = description; variable.BrowseName = new QualifiedName( name, NamespaceIndex ); variable.DisplayName = new LocalizedText( name ); variable.WriteMask = AttributeWriteMask.DisplayName | AttributeWriteMask.Description; variable.UserWriteMask = AttributeWriteMask.DisplayName | AttributeWriteMask.Description; variable.DataType = dataType; variable.ValueRank = valueRank; variable.AccessLevel = AccessLevels.CurrentReadOrWrite; variable.UserAccessLevel = AccessLevels.CurrentReadOrWrite; variable.Historizing = false; variable.Value = defaultValue; variable.StatusCode = StatusCodes.Good; variable.Timestamp = DateTime.Now; if (parent != null) { parent.AddChild( variable ); } return variable; }
           
          
         
        
       
      
     

　　

 

 

然后再启动一个 OPC UA Client的示例项目