xicheji/MainForm.cs

using S7.Net;
using System.Windows.Forms;

namespace xicheji
{
    public partial class MainForm : Form
    {
        private Plc? plc = null;
        public MainForm()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                plc = new Plc(CpuType.S7200, "127.0.0.1", 1502, 0, 1);
                plc.Open();
                richTextBox1.AppendText("���ӳɹ���\n\n");
                richTextBox1.ScrollToCaret();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + ex.StackTrace);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (plc == null || !plc.IsConnected) return;
            //plc��������c#���� bool => Bit
            //Byte => byte
            //word => ushort
            //DWord => uint
            //Int => short
            //DInt => int
            //Real => float
            //LReal => double
            //String => string
            //DateTimeLong=>datetime
            //s7wstring=>string

            //PLCAddress.Parse
            //1��DB100.DBB0 һ���ֽ���8��λ���ֱ�Ϊ0-- - 7������0.0----0.7��8λ   --Byte,byte
            //2��DB100.DBW0һ�����������ֽڣ��ֱ�Ϊ DB100.DBB0�� DB100.DBB1       --Word,ushort
            //3��DB100.DBD0һ��˫���������֣��ֱ�Ϊ DB100.DBW0�� DB100.DBW2       --DWord,uint
            //4��DB100.DBX0.0 һ��λ��������С��λ     --Bit,bool

            try
            {

                var db = 1;
                var start = plc.Read(DataType.DataBlock, db, 0, VarType.Byte, 1);
                Log("start:", start);
                var start2 = plc.Read("DB1.DBB0");
                Log("start2:", start2);
                var length = plc.Read(DataType.DataBlock, db, 1, VarType.Byte, 1);
                Log("length:", length);
                var length2 = plc.Read("DB1.DBB1");
                Log("length2:", length2);
                var mac = plc.Read(DataType.DataBlock, db, 2, VarType.Byte, 6);
                Log("mac:", string.Join(":", (mac as byte[]).ToList().ConvertAll(a => "0x" + a.ToString("X2"))));
                var val = plc.Read(DataType.DataBlock, db, 10, VarType.Bit, 1, 1);
                Log("DB1.DBX10.1��ֵΪ:", val);
                val = plc.Read(DataType.DataBlock, db, 10, VarType.Bit, 1, 2);
                Log("DB1.DBX10.2��ֵΪ:", val);
                val = plc.Read(DataType.DataBlock, db, 20, VarType.DWord, 1);
                Log("��ȡDB1.DBX20 DWORD��ϴ������ֵΪ:", val);

                var bbb = (bool)plc.Read("DB1.DBX10.1");
                Log("bbb:", bbb);
                var ccc = plc.Read("DB1.DBD20");
                Log("ccc:", ccc);
                //DWord.FromByteArray
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message + ex.StackTrace);
            }
        }

        private void Log(params object[] msgs)
        {
            richTextBox1.AppendText(string.Join(" ", msgs));
            richTextBox1.AppendText("\n\n");
            richTextBox1.ScrollToCaret();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            plc?.Close();
        }
    }
}