Code Beispiele PLCcom für Modbus

using PLCcomModbus.Core;
using PLCcomModbus.DataAdapter;
using PLCcomModbus.Master;
 
    class MasterExample
    {
 
        #region CreateAndInitDevice
 
        //Declare the Modbus master Device
        private ModbusMaster Device = null;
 
        public MasterExample()
        {
            CreateAndInitDevice();
        }
 
 
        private void CreateAndInitDevice()
        {
            Device = new ModbusMaster();
            Device.SetUser("my user name from licence document");
            Device.SetSerial("my serial from licence document");
 
            try
            {
                //create new interface instance (if not applicable please uncomment)
                // "TCP" interface:
                Device.SetConnector_TCP("192.168.1.21", 502);
 
                //or (if not applicable please uncomment)
                // "UDP" interface:
                //Device.SetConnector_UDP("192.168.1.100",502);
 
                //or (if not applicable please uncomment)
                // "RTU" interface:
                //Device.SetConnector_RTU("COM1",
                //                        eBaudrate.b9600,
                //                        eDataBits.DataBits8,
                //                        System.IO.Ports.Parity.None,
                //                        System.IO.Ports.StopBits.One,
                //                        System.IO.Ports.Handshake.None);
 
                //or (if not applicable please uncomment)
                // "ASCII interface":
                //Device.SetConnector_ASCII("COM1",
                //                        eBaudrate.b9600,
                //                        eDataBits.DataBits8,
                //                        System.IO.Ports.Parity.None,
                //                        System.IO.Ports.StopBits.One,
                //                        System.IO.Ports.Handshake.None);
 
 
                //set max idleTime (max idle timespan in milliseconds between open and close interface or connection), Standard = 10000ms
                Device.Connector.SetMaxIdleTime(5000);
 
                //Set RegisterMode >> 16bit or 32bit register, settings must match with settings of slave
                Device.RegisterMode = eRegisterMode._16Bit;
 
                //register OnConnectionStateChange event
                Device.Connector.OnConnectionStateChange += new ModbusConnector.ConnectionStateChangeEventHandler(Device_OnConnectionStateChange);
 
                //reading Collection from Modbus
                readCollection();
 
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return;
            }
        }
 
 
        private void Device_OnConnectionStateChange(object sender, eConnectionState e)
        {
            //do anything
            Console.WriteLine("Change PortState ==> " + e.ToString());
        }
        #endregion
 
        #region Read Collection
 
        private void readCollection()
        {
Console.WriteLine("start read request collection from modbus");
 
                //declare a ReadRequest object
                ReadRequestCollection RequestCollection = new ReadRequestCollection();
 
                #region Edit Collection
                //set request parameter
 
                //declare a ReadRequest object
                //and set the request parameters >> reading 6 holding register at adress 10
                ReadRequest RequestItem = RequestBuilder.ReadRequestBuilder.Create(1, //Slave ID
                                                                                   eReadFunction.F03_Read_Holding_Registers,//modbus function
                                                                                   10,                          //Read start adress
                                                                                   eDataType.BOOLEAN,           //Target Datatype
                                                                                   6,                           //quantity of objects to be read
                                                                                   0);                          //Address of first Bit by reading register
 
 
                //add Request to Collection
                RequestCollection.AddReadRequest("Item1", RequestItem);
                Console.WriteLine("add ReadRequest "+ RequestItem.ToString());
 
                //reading 8 holding register at adress 0
                RequestItem = RequestBuilder.ReadRequestBuilder.Create(1, //Slave ID
                                                                      eReadFunction.F03_Read_Holding_Registers,//modbus function
                                                                      0,                                        //Read start adress
                                                                      eDataType.BYTE,                           //Target Datatype
                                                                      8);                                       //quantity of objects to be read
 
 
                //add Request to Collection
                RequestCollection.AddReadRequest("Item2", RequestItem);
                Console.WriteLine("add ReadRequest " + RequestItem.ToString());
 
                //reading 2 holding register at adress 12
                RequestItem = RequestBuilder.ReadRequestBuilder.Create(1, //Slave ID
                                                                      eReadFunction.F03_Read_Holding_Registers,//modbus function
                                                                      12,                                        //Read start adress
                                                                      eDataType.USHORT,                         //Target Datatype
                                                                      2);                                       //quantity of objects to be read
 
 
                //add Request to Collection
                RequestCollection.AddReadRequest("Item3", RequestItem);
                Console.WriteLine("add ReadRequest " + RequestItem.ToString());
 
                //reading 2 holding register at adress 20
                RequestItem = RequestBuilder.ReadRequestBuilder.Create(1, //Slave ID
                                                                        eReadFunction.F01_Read_Coils,//modbus function
                                                                        2,                          //Read start adress
                                                                        eDataType.BOOLEAN,           //Target Datatype
                                                                        20,                           //quantity of objects to be read
                                                                        0);                          //Address of first Bit by reading register
 
 
                //add Request to Collection
                RequestCollection.AddReadRequest("Item4", RequestItem);
                Console.WriteLine("add ReadRequest " + RequestItem.ToString());
 
                //reading 8 coils at adress 8
                RequestItem = RequestBuilder.ReadRequestBuilder.Create(1, //Slave ID
                                                                        eReadFunction.F01_Read_Coils,//modbus function
                                                                        8,                           //Read start adress
                                                                        eDataType.BOOLEAN,           //Target Datatype
                                                                        8,                           //quantity of objects to be read
                                                                        0);                          //Address of first Bit by reading register
 
 
                //add Request to Collection
                RequestCollection.AddReadRequest("Item5", RequestItem);
                Console.WriteLine("add ReadRequest " + RequestItem.ToString());
 
                #endregion
                //enable optimize mode
                RequestCollection.Optmize = true;
 
                Console.WriteLine(RequestCollection.ToString());
 
                //read from device
                ReadResultCollection ResultCollection = Device.Read(RequestCollection);
 
                //evaluate results
 
                Console.WriteLine(DateTime.Now.ToString() + ": " + ResultCollection.Message);
 
                //find itemresult with foreach-loop
                StringBuilder sb = new StringBuilder();
                foreach (ReadResult res in ResultCollection.GetReadItemResult())
                {
                    sb.Append("Start Item:");
                    sb.Append(res.RequestKey);
                    sb.Append(" ");
                    sb.Append("Quality:");
                    sb.Append(" ");
                    sb.Append(res.Quality.ToString());
                    sb.Append(Environment.NewLine);
 
                    if (res.Quality == OperationResult.eQuality.GOOD)
                    {
                        Array Values = res.FetchValues();
                        for (int i = 0; i < Values.Length; i++)
                        {
                            sb.Append(Values.GetValue(i).ToString());
                            sb.Append(Environment.NewLine);
                        }
                        sb.Append("End Item:");
                        sb.Append(res.RequestKey);
                    }
                }
                Console.WriteLine(sb.ToString());
 
                Console.WriteLine("end read request collection from modbus");
                Console.WriteLine(Environment.NewLine);
        }
 
        #endregion
 
}