C#使用MX Component实现三菱PLC软元件数据采集的完整步骤（仿真）

using ActUtlTypeLib; using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; using System.Windows.Forms;  namespace MELSEC.MX.Test {     public partial class Form1 : Form     {         private ActUtlType m_plc;         public Form1()         {             InitializeComponent();             m_plc = new ActUtlType();         }          private void Form1_Load(object sender, EventArgs e)         {             cmb_LogicalStationNumber.Items.Clear();             for (int i = 1;i<=256;i++)             {                 cmb_LogicalStationNumber.Items.Add(i.ToString());             }         }                  private void btn_Comm_Click(object sender, EventArgs e)         {             try             {                 int logNUM = Convert.ToInt16(cmb_LogicalStationNumber.Text);                 m_plc.ActLogicalStationNumber=logNUM;                 m_plc.ActPassword = "";                 if (m_plc.Open() != 0)                 {                     btn_Comm.BackColor = Color.Gray;                     btn_Comm.Text = "未建立链接";                     m_plc.Close();                     m_plc = null;                 }                 else                 {                     btn_Comm.BackColor = Color.Green;                     btn_Comm.Text = "已连接";                 }             }             catch (Exception )             {                 throw;             }         }          private void btn_Read_Click(object sender, EventArgs e)         {             try             {                 Thread thread = new Thread(() =>                 {                     while (true)                     {                         txb_D0.Invoke(new Action(() =>                         {                             txb_D0.Text = ReadDeviceValue("D0", 2)[0].ToString();                             txb_D1.Text = ReadDeviceValue("D0", 2)[1].ToString();                             txb_R100.Text = ReadDeviceValue("R100", 1)[0].ToString();                             txb_W500.Text = ReadDeviceValue("W500", 1)[0].ToString();                         }));                         Thread.Sleep(300);                     }                 });                 thread.IsBackground = true;                 thread.Start();             }             catch (Exception)             {                  throw;             }         }          private string[] ReadDeviceValue(string DeviceName,int NumberOfData)         {             int iReturnCode;             short[] arrDeviceValue;             string szDeviceName;             string[] arrData= { };             int iNumberOfData;             try             {                 szDeviceName = string.Join("n", DeviceName);                 iNumberOfData = Convert.ToInt32(NumberOfData);                 arrDeviceValue = new short[iNumberOfData];                 iReturnCode = m_plc.ReadDeviceBlock2(szDeviceName, iNumberOfData, out arrDeviceValue[0]);                 if (iReturnCode == 0)                 {                     arrData = new string[iNumberOfData];                     for (int i = 0; i < iNumberOfData; i++)                     {                         arrData[i] = arrDeviceValue[i].ToString();                     }                     return arrData;                 }                 return arrData;             }             catch (Exception ex)             {                 MessageBox.Show(ex.Message, Name, MessageBoxButtons.OK, MessageBoxIcon.Error);                 return arrData;             }         }     } }