mirror of
https://github.com/S7NetPlus/s7netplus.git
synced 2026-02-17 22:38:27 +08:00
745 lines
30 KiB
C#
745 lines
30 KiB
C#
using System;
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using System.Collections;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Net.Sockets;
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using S7.Net.Interfaces;
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using Double = System.Double;
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namespace S7.Net
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{
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public class Plc : IPlc
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{
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private Socket _mSocket; //TCP connection to device
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public string IP { get; set; }
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public CpuType CPU { get; set; }
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public Int16 Rack { get; set; }
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public Int16 Slot { get; set; }
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public string Name { get; set; }
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public object Tag { get; set; }
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public bool IsAvailable
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{
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get
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{
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Ping ping = new Ping();
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PingReply result = ping.Send(IP);
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return result != null && result.Status == IPStatus.Success;
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}
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}
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public bool IsConnected { get; private set; }
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public string LastErrorString { get; private set; }
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public ErrorCode LastErrorCode { get; private set; }
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public Plc() : this(CpuType.S7400, "localhost", 0, 2) { }
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public Plc(CpuType cpu, string ip, Int16 rack, Int16 slot, string name = "", object tag = null)
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{
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IsConnected = false;
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IP = ip;
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CPU = cpu;
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Rack = rack;
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Slot = slot;
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Name = name;
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Tag = tag;
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}
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public ErrorCode Open()
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{
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byte[] bReceive = new byte[256];
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try
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{
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// check if available
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if (!IsAvailable)
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{
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throw new Exception();
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}
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}
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catch
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{
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LastErrorCode = ErrorCode.IPAddressNotAvailable;
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LastErrorString = string.Format("Destination IP-Address '{0}' is not available!", IP);
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return LastErrorCode;
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}
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try {
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// open the channel
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_mSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
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_mSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000);
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_mSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 1000);
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IPEndPoint server = new IPEndPoint(IPAddress.Parse(IP), 102);
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_mSocket.Connect(server);
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}
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catch (Exception ex) {
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LastErrorCode = ErrorCode.ConnectionError;
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LastErrorString = ex.Message;
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return ErrorCode.ConnectionError;
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}
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try
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{
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byte[] bSend1 = { 3, 0, 0, 22, 17, 224, 0, 0, 0, 46, 0, 193, 2, 1, 0, 194, 2, 3, 0, 192, 1, 9 };
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switch (CPU) {
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case CpuType.S7200:
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//S7200: Chr(193) & Chr(2) & Chr(16) & Chr(0) 'Eigener Tsap
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bSend1[11] = 193;
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bSend1[12] = 2;
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bSend1[13] = 16;
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bSend1[14] = 0;
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//S7200: Chr(194) & Chr(2) & Chr(16) & Chr(0) 'Fremder Tsap
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bSend1[15] = 194;
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bSend1[16] = 2;
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bSend1[17] = 16;
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bSend1[18] = 0;
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break;
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case CpuType.S71200:
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case CpuType.S7300:
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//S7300: Chr(193) & Chr(2) & Chr(1) & Chr(0) 'Eigener Tsap
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bSend1[11] = 193;
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bSend1[12] = 2;
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bSend1[13] = 1;
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bSend1[14] = 0;
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//S7300: Chr(194) & Chr(2) & Chr(3) & Chr(2) 'Fremder Tsap
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bSend1[15] = 194;
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bSend1[16] = 2;
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bSend1[17] = 3;
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bSend1[18] = (byte)(Rack * 2 * 16 + Slot);
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break;
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case CpuType.S7400:
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//S7400: Chr(193) & Chr(2) & Chr(1) & Chr(0) 'Eigener Tsap
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bSend1[11] = 193;
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bSend1[12] = 2;
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bSend1[13] = 1;
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bSend1[14] = 0;
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//S7400: Chr(194) & Chr(2) & Chr(3) & Chr(3) 'Fremder Tsap
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bSend1[15] = 194;
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bSend1[16] = 2;
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bSend1[17] = 3;
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bSend1[18] = (byte)(Rack * 2 * 16 + Slot);
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break;
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default:
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return ErrorCode.WrongCPU_Type;
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}
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_mSocket.Send(bSend1, 22, SocketFlags.None);
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if (_mSocket.Receive(bReceive, 22, SocketFlags.None) != 22)
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{
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throw new Exception(ErrorCode.WrongNumberReceivedBytes.ToString());
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}
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byte[] bsend2 = { 3, 0, 0, 25, 2, 240, 128, 50, 1, 0, 0, 255, 255, 0, 8, 0, 0, 240, 0, 0, 3, 0, 3, 1, 0 };
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_mSocket.Send(bsend2, 25, SocketFlags.None);
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if (_mSocket.Receive(bReceive, 27, SocketFlags.None) != 27)
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{
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throw new Exception(ErrorCode.WrongNumberReceivedBytes.ToString());
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}
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IsConnected = true;
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}
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catch
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{
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LastErrorCode = ErrorCode.ConnectionError;
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LastErrorString = string.Format("Couldn't establish the connection to {0}!", IP);
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IsConnected = false;
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return ErrorCode.ConnectionError;
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}
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return ErrorCode.NoError;
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}
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public void Close()
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{
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if (_mSocket != null && _mSocket.Connected)
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{
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_mSocket.Close();
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IsConnected = false;
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}
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}
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public byte[] ReadBytes(DataType dataType, int DB, int startByteAdr, int count)
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{
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byte[] bytes = new byte[count];
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try
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{
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// first create the header
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int packageSize = 31;
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Types.ByteArray package = new Types.ByteArray(packageSize);
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package.Add(new byte[] {0x03, 0x00, 0x00});
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package.Add((byte) packageSize);
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package.Add(new byte[]
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{0x02, 0xf0, 0x80, 0x32, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x04, 0x01, 0x12, 0x0a, 0x10});
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// package.Add(0x02); // datenart
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switch (dataType)
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{
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case DataType.Timer:
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case DataType.Counter:
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package.Add((byte) dataType);
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break;
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default:
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package.Add(0x02);
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break;
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}
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package.Add(Types.Word.ToByteArray((ushort) (count)));
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package.Add(Types.Word.ToByteArray((ushort) (DB)));
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package.Add((byte) dataType);
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package.Add((byte) 0);
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switch (dataType)
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{
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case DataType.Timer:
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case DataType.Counter:
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package.Add(Types.Word.ToByteArray((ushort) (startByteAdr)));
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break;
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default:
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package.Add(Types.Word.ToByteArray((ushort) ((startByteAdr)*8)));
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break;
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}
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_mSocket.Send(package.array, package.array.Length, SocketFlags.None);
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byte[] bReceive = new byte[512];
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int numReceived = _mSocket.Receive(bReceive, 512, SocketFlags.None);
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if (bReceive[21] != 0xff) throw new Exception(ErrorCode.WrongNumberReceivedBytes.ToString());
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for (int cnt = 0; cnt < count; cnt++)
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bytes[cnt] = bReceive[cnt + 25];
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return bytes;
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}
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catch (SocketException socketException)
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{
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IsConnected = false;
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LastErrorCode = ErrorCode.WriteData;
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LastErrorString = socketException.Message;
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return null;
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}
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catch
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{
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LastErrorCode = ErrorCode.WriteData;
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LastErrorString = "";
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return null;
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}
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}
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public object Read(DataType dataType, int db, int startByteAdr, VarType varType, int varCount)
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{
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byte[] bytes = null;
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int cntBytes = 0;
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switch (varType)
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{
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case VarType.Byte:
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cntBytes = varCount;
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if (cntBytes < 1) cntBytes = 1;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return bytes[0];
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else
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return bytes;
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case VarType.Word:
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cntBytes = varCount * 2;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return Types.Word.FromByteArray(bytes);
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else
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return Types.Word.ToArray(bytes);
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case VarType.Int:
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cntBytes = varCount * 2;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return Types.Int.FromByteArray(bytes);
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else
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return Types.Int.ToArray(bytes);
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case VarType.DWord:
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cntBytes = varCount * 4;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return Types.DWord.FromByteArray(bytes);
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else
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return Types.DWord.ToArray(bytes);
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case VarType.DInt:
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cntBytes = varCount * 4;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return Types.DInt.FromByteArray(bytes);
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else
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return Types.DInt.ToArray(bytes);
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case VarType.Real:
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cntBytes = varCount * 4;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return Types.Double.FromByteArray(bytes);
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else
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return Types.Double.ToArray(bytes);
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case VarType.String:
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cntBytes = varCount;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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return Types.String.FromByteArray(bytes);
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case VarType.Timer:
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cntBytes = varCount * 2;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return Types.Timer.FromByteArray(bytes);
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else
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return Types.Timer.ToArray(bytes);
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case VarType.Counter:
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cntBytes = varCount * 2;
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bytes = ReadBytes(dataType, db, startByteAdr, cntBytes);
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if (bytes == null) return null;
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if (varCount == 1)
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return Types.Counter.FromByteArray(bytes);
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else
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return Types.Counter.ToArray(bytes);
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default:
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return null;
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}
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}
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public object Read(string variable)
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{
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DataType mDataType;
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int mDB;
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int mByte;
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int mBit;
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byte objByte;
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UInt16 objUInt16;
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UInt32 objUInt32;
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double objDouble;
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BitArray objBoolArray;
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string txt = variable.ToUpper();
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txt = txt.Replace(" ", ""); // remove spaces
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try
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{
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switch (txt.Substring(0, 2))
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{
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case "DB":
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string[] strings = txt.Split(new char[] { '.' });
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if (strings.Length < 2)
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throw new Exception();
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mDB = int.Parse(strings[0].Substring(2));
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string dbType = strings[1].Substring(0, 3);
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int dbIndex = int.Parse(strings[1].Substring(3));
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switch (dbType)
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{
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case "DBB":
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byte obj = (byte)Read(DataType.DataBlock, mDB, dbIndex, VarType.Byte, 1);
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return obj;
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case "DBW":
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Int16 objI = (Int16)(UInt16)Read(DataType.DataBlock, mDB, dbIndex, VarType.Word, 1);
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return objI;
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case "DBD":
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Int32 objU = (Int32)(UInt32)Read(DataType.DataBlock, mDB, dbIndex, VarType.DWord, 1);
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return objU;
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case "DBX":
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mByte = dbIndex;
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mBit = int.Parse(strings[2]);
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if (mBit > 7) throw new Exception();
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byte obj2 = (byte)Read(DataType.DataBlock, mDB, mByte, VarType.Byte, 1);
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objBoolArray = new BitArray(new byte[] { obj2 });
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return objBoolArray[mBit];
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default:
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throw new Exception();
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}
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case "EB":
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// Input byte
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objByte = (byte)Read(DataType.Input, 0, int.Parse(txt.Substring(2)), VarType.Byte, 1);
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return objByte;
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case "EW":
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// Input word
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objUInt16 = (UInt16)Read(DataType.Input, 0, int.Parse(txt.Substring(2)), VarType.Word, 1);
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return objUInt16;
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case "ED":
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// Input double-word
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objUInt32 = (UInt32)Read(DataType.Input, 0, int.Parse(txt.Substring(2)), VarType.DWord, 1);
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return objUInt32;
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case "AB":
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// Output byte
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objByte = (byte)Read(DataType.Output, 0, int.Parse(txt.Substring(2)), VarType.Byte, 1);
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return objByte;
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case "AW":
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// Output word
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objUInt16 = (UInt16)Read(DataType.Output, 0, int.Parse(txt.Substring(2)), VarType.Word, 1);
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return objUInt16;
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case "AD":
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// Output double-word
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objUInt32 = (UInt32)Read(DataType.Output, 0, int.Parse(txt.Substring(2)), VarType.DWord, 1);
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return objUInt32;
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case "MB":
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// Memory byte
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objByte = (byte)Read(DataType.Memory, 0, int.Parse(txt.Substring(2)), VarType.Byte, 1);
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return objByte;
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case "MW":
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// Memory word
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objUInt16 = (UInt16)Read(DataType.Memory, 0, int.Parse(txt.Substring(2)), VarType.Word, 1);
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return objUInt16;
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case "MD":
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// Memory double-word
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objUInt32 = (UInt32)Read(DataType.Memory, 0, int.Parse(txt.Substring(2)), VarType.DWord, 1);
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return objUInt32;
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default:
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switch (txt.Substring(0, 1))
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{
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case "E":
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case "I":
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// Input
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mDataType = DataType.Input;
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break;
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case "A":
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case "O":
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// Output
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mDataType = DataType.Output;
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break;
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case "M":
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// Memory
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mDataType = DataType.Memory;
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break;
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case "T":
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// Timer
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objDouble = (double)Read(DataType.Timer, 0, int.Parse(txt.Substring(1)), VarType.Timer, 1);
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return objDouble;
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case "Z":
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case "C":
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// Counter
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objUInt16 = (UInt16)Read(DataType.Counter, 0, int.Parse(txt.Substring(1)), VarType.Counter, 1);
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return objUInt16;
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default:
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throw new Exception();
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}
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string txt2 = txt.Substring(1);
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if (txt2.IndexOf(".") == -1) throw new Exception();
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mByte = int.Parse(txt2.Substring(0, txt2.IndexOf(".")));
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mBit = int.Parse(txt2.Substring(txt2.IndexOf(".") + 1));
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if (mBit > 7) throw new Exception();
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var obj3 = (byte)Read(mDataType, 0, mByte, VarType.Byte, 1);
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objBoolArray = new BitArray(new byte[]{obj3});
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return objBoolArray[mBit];
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}
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}
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catch
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{
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LastErrorCode = ErrorCode.WrongVarFormat;
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LastErrorString = "The variable'" + variable + "' could not be read. Please check the syntax and try again.";
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return LastErrorCode;
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}
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}
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public object ReadStruct(Type structType, int db)
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{
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double numBytes = Types.Struct.GetStructSize(structType);
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// now read the package
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byte[] bytes = (byte[])Read(DataType.DataBlock, db, 0, VarType.Byte, (int)numBytes);
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// and decode it
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return Types.Struct.FromBytes(structType, bytes);
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}
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public ErrorCode WriteBytes(DataType dataType, int db, int startByteAdr, byte[] value)
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{
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byte[] bReceive = new byte[513];
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int varCount = 0;
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try
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{
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varCount = value.Length;
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// first create the header
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int packageSize = 35 + value.Length;
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Types.ByteArray package = new Types.ByteArray(packageSize);
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package.Add(new byte[] { 3, 0, 0 });
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package.Add((byte)packageSize);
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package.Add(new byte[] { 2, 0xf0, 0x80, 0x32, 1, 0, 0 });
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package.Add(Types.Word.ToByteArray((ushort)(varCount - 1)));
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package.Add(new byte[] { 0, 0x0e });
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package.Add(Types.Word.ToByteArray((ushort)(varCount + 4)));
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package.Add(new byte[] { 0x05, 0x01, 0x12, 0x0a, 0x10, 0x02 });
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package.Add(Types.Word.ToByteArray((ushort)varCount));
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package.Add(Types.Word.ToByteArray((ushort)(db)));
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package.Add((byte)dataType);
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package.Add((byte)0);
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package.Add(Types.Word.ToByteArray((ushort)(startByteAdr * 8)));
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package.Add(new byte[] { 0, 4 });
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package.Add(Types.Word.ToByteArray((ushort)(varCount * 8)));
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// now join the header and the data
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package.Add(value);
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_mSocket.Send(package.array, package.array.Length, SocketFlags.None);
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int numReceived = _mSocket.Receive(bReceive, 512, SocketFlags.None);
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if (bReceive[21] != 0xff)
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{
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throw new Exception(ErrorCode.WrongNumberReceivedBytes.ToString());
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}
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return ErrorCode.NoError;
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}
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catch
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{
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|
LastErrorCode = ErrorCode.WriteData;
|
|
LastErrorString = "";
|
|
return LastErrorCode;
|
|
}
|
|
}
|
|
|
|
public object Write(DataType dataType, int db, int startByteAdr, object value)
|
|
{
|
|
byte[] package = null;
|
|
|
|
switch (value.GetType().Name)
|
|
{
|
|
case "Byte":
|
|
package = Types.Byte.ToByteArray((byte)value);
|
|
break;
|
|
case "Int16":
|
|
package = Types.Int.ToByteArray((Int16)value);
|
|
break;
|
|
case "UInt16":
|
|
package = Types.Word.ToByteArray((UInt16)value);
|
|
break;
|
|
case "Int32":
|
|
package = Types.DInt.ToByteArray((Int32)value);
|
|
break;
|
|
case "UInt32":
|
|
package = Types.DWord.ToByteArray((UInt32)value);
|
|
break;
|
|
case "Double":
|
|
package = Types.Double.ToByteArray((Double)value);
|
|
break;
|
|
case "Byte[]":
|
|
package = (byte[])value;
|
|
break;
|
|
case "Int16[]":
|
|
package = Types.Int.ToByteArray((Int16[])value);
|
|
break;
|
|
case "UInt16[]":
|
|
package = Types.Word.ToByteArray((UInt16[])value);
|
|
break;
|
|
case "Int32[]":
|
|
package = Types.DInt.ToByteArray((Int32[])value);
|
|
break;
|
|
case "UInt32[]":
|
|
package = Types.DWord.ToByteArray((UInt32[])value);
|
|
break;
|
|
case "Double[]":
|
|
package = Types.Double.ToByteArray((double[])value);
|
|
break;
|
|
case "String":
|
|
package = Types.String.ToByteArray(value as string);
|
|
break;
|
|
default:
|
|
return ErrorCode.WrongVarFormat;
|
|
}
|
|
return WriteBytes(dataType, db, startByteAdr, package);
|
|
}
|
|
|
|
public object Write(string variable, object value)
|
|
{
|
|
DataType mDataType;
|
|
int mDB;
|
|
int mByte;
|
|
int mBit;
|
|
|
|
string addressLocation;
|
|
byte _byte;
|
|
object objValue;
|
|
|
|
string txt = variable.ToUpper();
|
|
txt = txt.Replace(" ", ""); // Remove spaces
|
|
|
|
try
|
|
{
|
|
switch (txt.Substring(0, 2))
|
|
{
|
|
case "DB":
|
|
string[] strings = txt.Split(new char[]{'.'});
|
|
if (strings.Length < 2)
|
|
throw new Exception();
|
|
|
|
mDB = int.Parse(strings[0].Substring(2));
|
|
string dbType = strings[1].Substring(0, 3);
|
|
int dbIndex = int.Parse(strings[1].Substring(3));
|
|
|
|
switch (dbType)
|
|
{
|
|
case "DBB":
|
|
objValue = Convert.ChangeType(value, typeof(byte));
|
|
return Write(DataType.DataBlock, mDB, dbIndex, (byte)objValue);
|
|
case "DBW":
|
|
objValue = Convert.ChangeType(value, typeof(UInt16));
|
|
return Write(DataType.DataBlock, mDB, dbIndex, (UInt16)objValue);
|
|
case "DBD":
|
|
objValue = Convert.ChangeType(value, typeof(UInt32));
|
|
return Write(DataType.DataBlock, mDB, dbIndex, (UInt32)objValue);
|
|
case "DBX":
|
|
mByte = dbIndex;
|
|
mBit = int.Parse(strings[2]);
|
|
if (mBit > 7)
|
|
{
|
|
throw new Exception(string.Format("Addressing Error: You can only reference bitwise locations 0-7. Address {0} is invalid", mBit));
|
|
}
|
|
byte b = (byte)Read(DataType.DataBlock, mDB, mByte, VarType.Byte, 1);
|
|
if ((int)value == 1)
|
|
b = (byte)(b | (byte)Math.Pow(2, mBit)); // Bit setzen
|
|
else
|
|
b = (byte)(b & (b ^ (byte)Math.Pow(2, mBit))); // Bit rücksetzen
|
|
|
|
return Write(DataType.DataBlock, mDB, mByte, (byte)b);
|
|
case "DBS":
|
|
// DB-String
|
|
return Write(DataType.DataBlock, mDB, dbIndex, (string)value);
|
|
default:
|
|
throw new Exception(string.Format("Addressing Error: Unable to parse address {0}. Supported formats include DBB (byte), DBW (word), DBD (dword), DBX (bitwise), DBS (string).", dbType));
|
|
}
|
|
case "EB":
|
|
// Input Byte
|
|
objValue = Convert.ChangeType(value, typeof(byte));
|
|
return Write(DataType.Input, 0, int.Parse(txt.Substring(2)), (byte)objValue);
|
|
case "EW":
|
|
// Input Word
|
|
objValue = Convert.ChangeType(value, typeof(UInt16));
|
|
return Write(DataType.Input, 0, int.Parse(txt.Substring(2)), (UInt16)objValue);
|
|
case "ED":
|
|
// Input Double-Word
|
|
objValue = Convert.ChangeType(value, typeof(UInt32));
|
|
return Write(DataType.Input, 0, int.Parse(txt.Substring(2)), (UInt32)objValue);
|
|
case "AB":
|
|
// Output Byte
|
|
objValue = Convert.ChangeType(value, typeof(byte));
|
|
return Write(DataType.Output, 0, int.Parse(txt.Substring(2)), (byte)objValue);
|
|
case "AW":
|
|
// Output Word
|
|
objValue = Convert.ChangeType(value, typeof(UInt16));
|
|
return Write(DataType.Output, 0, int.Parse(txt.Substring(2)), (UInt16)objValue);
|
|
case "AD":
|
|
// Output Double-Word
|
|
objValue = Convert.ChangeType(value, typeof(UInt32));
|
|
return Write(DataType.Output, 0, int.Parse(txt.Substring(2)), (UInt32)objValue);
|
|
case "MB":
|
|
// Memory Byte
|
|
objValue = Convert.ChangeType(value, typeof(byte));
|
|
return Write(DataType.Memory, 0, int.Parse(txt.Substring(2)), (byte)objValue);
|
|
case "MW":
|
|
// Memory Word
|
|
objValue = Convert.ChangeType(value, typeof(UInt16));
|
|
return Write(DataType.Memory, 0, int.Parse(txt.Substring(2)), (UInt16)objValue);
|
|
case "MD":
|
|
// Memory Double-Word
|
|
return Write(DataType.Memory, 0, int.Parse(txt.Substring(2)), value);
|
|
default:
|
|
switch (txt.Substring(0, 1))
|
|
{
|
|
case "E":
|
|
case "I":
|
|
// Input
|
|
mDataType = DataType.Input;
|
|
break;
|
|
case "A":
|
|
case "O":
|
|
// Output
|
|
mDataType = DataType.Output;
|
|
break;
|
|
case "M":
|
|
// Memory
|
|
mDataType = DataType.Memory;
|
|
break;
|
|
case "T":
|
|
// Timer
|
|
return Write(DataType.Timer, 0, int.Parse(txt.Substring(1)), (double)value);
|
|
case "Z":
|
|
case "C":
|
|
// Counter
|
|
return Write(DataType.Counter, 0, int.Parse(txt.Substring(1)), (short)value);
|
|
default:
|
|
throw new Exception(string.Format("Unknown variable type {0}.",txt.Substring(0,1)));
|
|
}
|
|
|
|
addressLocation = txt.Substring(1);
|
|
int decimalPointIndex = addressLocation.IndexOf(".");
|
|
if (decimalPointIndex == -1)
|
|
{
|
|
throw new Exception(string.Format("Cannot parse variable {0}. Input, Output, Memory Address, Timer, and Counter types require bit-level addressing (e.g. I0.1).",addressLocation));
|
|
}
|
|
|
|
mByte = int.Parse(addressLocation.Substring(0, decimalPointIndex));
|
|
mBit = int.Parse(addressLocation.Substring(decimalPointIndex + 1));
|
|
if (mBit > 7)
|
|
{
|
|
throw new Exception(string.Format("Addressing Error: You can only reference bitwise locations 0-7. Address {0} is invalid", mBit));
|
|
}
|
|
|
|
_byte = (byte)Read(mDataType, 0, mByte, VarType.Byte, 1);
|
|
if ((int)value == 1)
|
|
_byte = (byte)(_byte | (byte)Math.Pow(2, mBit)); // Set bit
|
|
else
|
|
_byte = (byte)(_byte & (_byte ^ (byte)Math.Pow(2, mBit))); // Reset bit
|
|
|
|
return Write(mDataType, 0, mByte, (byte)_byte);
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
LastErrorCode = ErrorCode.WrongVarFormat;
|
|
LastErrorString = "The variable'" + variable + "' could not be parsed. Please check the syntax and try again.";
|
|
return LastErrorCode;
|
|
}
|
|
}
|
|
|
|
public ErrorCode WriteStruct(object structValue, int db)
|
|
{
|
|
try
|
|
{
|
|
byte[] bytes = Types.Struct.ToBytes(structValue);
|
|
ErrorCode errCode = WriteBytes(DataType.DataBlock, db, 0, bytes);
|
|
return errCode;
|
|
}
|
|
catch
|
|
{
|
|
LastErrorCode = ErrorCode.WriteData;
|
|
LastErrorString = "An error occurred while writing data.";
|
|
return LastErrorCode;
|
|
}
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (_mSocket != null)
|
|
{
|
|
if (_mSocket.Connected)
|
|
{
|
|
//Close() performs a Dispose on the socket.
|
|
_mSocket.Close();
|
|
}
|
|
//((IDisposable)_mSocket).Dispose();
|
|
}
|
|
}
|
|
}
|
|
}
|