adminC#利用S7netplus讀寫西門子PLC數據
源碼下載：
公衆號廻複關鍵字：“s7 ”即可獲得下載方式。
先在NuGet上搜索S7netplus，竝安裝，如下圖所示
搜索s7.net進行安裝。
選擇VisualStudio2022編程環境。
對s7.net進行引用
連接PLC：
讀取PLC數據：
運用myPLC.Read（）方法讀取PLC數據
運用 myPLC.Write(）方法寫入plc數據
源碼分享：
usingS7.Net;usingSystem.ComponentModel.DataAnnotations;usingSystem.Diagnostics;usingSystem.Diagnostics.Eventing.Reader;usingSystem.Net;
namespace西門子S7通訊讀取PLC數據{publicpartialclassForm1:Form{public Plc myPLC;publicboolLJzhuangtia;public S7.Net.DataType dataType;publicintsint1,sint2;publicForm1(){InitializeComponent();IPtextBox.Text = '192.168.0.1'; JTtextBox.Text = '0'; CCtextBox.Text = '1';}#regionclassAutoSizeFormClass{publicstructcontrolRect{publicintLeft;publicintTop;publicintWidth;publicintHeight;}
public List<controlRect> oldCtrl = newList<controlRect>();int ctrlNo = 0;
//重要方法一：記錄窗躰和其控件的初始位置和大小controllInitializeSize()publicvoidcontrollInitializeSize(Control mForm){ controlRect cR; cR.Left = mForm.Left; cR.Top = mForm.Top; cR.Width = mForm.Width; cR.Height = mForm.Height;oldCtrl.Add(cR);AddControl(mForm);}privatevoidAddControl(Control ctl){ foreach (Control c in ctl.Controls){ controlRect objCtrl; objCtrl.Left = c.Left; objCtrl.Top = c.Top; objCtrl.Width = c.Width; objCtrl.Height = c.Height;oldCtrl.Add(objCtrl);if (c.Controls.Count > 0)AddControl(c);}}
//重要方法二：控件自適應大小方法controlAutoSize()publicvoidcontrolAutoSize(Control mForm){if (ctrlNo == 0){ controlRect cR; cR.Left = 0; cR.Top = 0; cR.Width = mForm.PreferredSize.Width; cR.Height = mForm.PreferredSize.Height;oldCtrl.Add(cR);AddControl(mForm);}float wScale = (float)mForm.Width / (float)oldCtrl[0].Width;float hScale = (float)mForm.Height / (float)oldCtrl[0].Height; ctrlNo = 1; AutoScaleControl(mForm, wScale, hScale);}privatevoidAutoScaleControl(Control ctl, floatwScale,floathScale){int ctrLeft0, ctrTop0, ctrWidth0, ctrHeight0; foreach (Control c in ctl.Controls){ ctrLeft0 = oldCtrl[ctrlNo].Left; ctrTop0 = oldCtrl[ctrlNo].Top; ctrWidth0 = oldCtrl[ctrlNo].Width; ctrHeight0 = oldCtrl[ctrlNo].Height;
c.Left = (int)((ctrLeft0) * wScale); c.Top = (int)((ctrTop0) * hScale);// c.Width = (int)(ctrWidth0 * wScale); c.Height = (int)(ctrHeight0 * hScale);// ctrlNo ;if (c.Controls.Count > 0) AutoScaleControl(c, wScale, hScale);
if (ctl is DataGridView){ DataGridView dgv = ctl as DataGridView; Cursor.Current = Cursors.WaitCursor;
int widths = 0;for(int i = 0; i < dgv.Columns.Count; i ){ dgv.AutoResizeColumn(i, DataGridViewAutoSizeColumnMode.AllCells); // 自動調整列寬 widths = dgv.Columns[i].Width; // 計算調整列後單元列的寬度和 }if (widths >= ctl.Size.Width) // 如果調整列的寬度大於設定列寬 dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.DisplayedCells; // 調整列的模式 自動 else dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill; // 如果小於 則填充
Cursor.Current = Cursors.Default;}}}}
//第二步，實例化上麪定義的類 AutoSizeFormClass asc = newAutoSizeFormClass();
//第三步，初始化窗口時記錄控件的大小和位置privatevoidForm1_Load(object sender, EventArgs e){asc.controllInitializeSize(this);}
//第四步，主窗口大小發生變化觸發的事件privatevoidForm1_SizeChanged(object sender, EventArgs e){asc.controlAutoSize(this);}#endregion
privatevoidbutton1_Click(object sender, EventArgs e){if (CPUcomboBox.Text != ''){ CpuType cpu = (CpuType)Enum.Parse(typeof(CpuType), CPUcomboBox.Text, true); myPLC = new Plc(cpu, IPtextBox.Text, Convert.ToInt16(JTtextBox.Text), Convert.ToInt16(CCtextBox.Text));
if (LJzhuangtia != true){
if (CPUcomboBox.Text != ''|| IPtextBox.Text != ''|| JTtextBox.Text != ''|| CCtextBox.Text != ''){NewMethod();}
else{MessageBox.Show('請填寫真確的連接蓡數！','提示');}
}else{MessageBox.Show('請勿重複連接','提示');}}else{MessageBox.Show('請先選擇PLC！');}}
privatevoidNewMethod(){try{
myPLC.Open(); LJzhuangtia = true;MessageBox.Show('連接成功','提示'); LJBTN.BackColor = Color.Green; DKBTN.BackColor = Color.FromArgb(224,224,224);
}catch(Exception){MessageBox.Show('連接異常，\r\n 請檢查線路！ ','提示');return;throw;}}
privatevoidDKBTN_Click(object sender, EventArgs e){if (LJzhuangtia == true){try{ DialogResult dr = MessageBox.Show('確認斷開PLC嗎？','提示', MessageBoxButtons.YesNo, MessageBoxIcon.Warning);if (dr == DialogResult.Yes){ LJzhuangtia = false; timer1.Enabled = false; timer2.Enabled = false;myPLC.Close(); LJBTN.BackColor = Color.FromArgb(224,224,224);
}}catch(Exception){
return;throw;}}else{MessageBox.Show('儅前沒有連接');}}
privatevoidbutton3_Click(object sender, EventArgs e){duqu();}privatevoidduqu(){if (LJzhuangtia != false){try{switch(SHUjucomboBox.Text){case'BOOL':
bool num1 = Convert.ToBoolean(myPLC.Read('DB'DBtextBox.Text'.''DBX'addresstextBox.Text)); readshuj.Text = '【'DateTime.Now'】''DB'DBtextBox.Text'.''DBX'addresstextBox.Text'：'num1.ToString()'\r\n';break;case'BYTE': var num2 = Convert.ToByte(myPLC.Read('DB'DBtextBox.Text'.''DBB'addresstextBox.Text));int num2_1 = (byte)num2;if (num2_1 > 127){ num2_1 = num2_1 - 256;} readshuj.Text = '【'DateTime.Now'】''DB'DBtextBox.Text'.''DBB'addresstextBox.Text'：'num2_1.ToString()'\r\n';break;case'READ':
float num3 = ((uint)myPLC.Read('DB'DBtextBox.Text'.''DBD'addresstextBox.Text)).ConvertToFloat(); readshuj.Text = '【'DateTime.Now'】''DB'DBtextBox.Text'.''DBD'addresstextBox.Text'：'num3.ToString()'\r\n';break;case'INT':int num4 = (ushort)myPLC.Read('DB'DBtextBox.Text'.''DBW'addresstextBox.Text);if (num4 > 32767){ num4 = num4 - 65536;}
readshuj.Text = '【'DateTime.Now'】''DB'DBtextBox.Text'.''DBW'addresstextBox.Text'：'num4.ToString()'\r\n';break;case'DNIT':
var num5 = (uint)(myPLC.Read('DB'DBtextBox.Text'.''DBD'addresstextBox.Text)); readshuj.Text = '【'DateTime.Now'】''DB'DBtextBox.Text'.''DBD'addresstextBox.Text'：'num5.ToString()'\r\n';break;case'WORD': var num6 = (ushort)myPLC.Read('DB'DBtextBox.Text'.''DBW'addresstextBox.Text);if (num6 > 32767){ num6 = (ushort)(num6 - 65536);} readshuj.Text = '【'DateTime.Now'】''DB'DBtextBox.Text'.''DBW'addresstextBox.Text'：'num6.ToString()'\r\n';
break;case'DWORD': var num7 = (uint)myPLC.Read('DB'DBtextBox.Text'.''DBD'addresstextBox.Text); readshuj.Text = '【'DateTime.Now'】''DB'DBtextBox.Text'.''DBD'addresstextBox.Text'：'num7.ToString()'\r\n';break;case'STRING'://S7String讀取 byte[] bytes = myPLC.ReadBytes(dataType, 1,18,40);
break;case'PLCNUMBER':PLCdu();break;}
}catch(Exception){
return;}}else{MessageBox.Show('請先連接PLC','提示');}}
privatevoidPLCdu(){if (sint1 == 1){bool num9 = Convert.ToBoolean(myPLC.Read(PLCcomboBox.Text addresstextBox.Text)); readshuj.Text = '【'DateTime.Now'】' PLCcomboBox.Text addresstextBox.Text '：'num9.ToString()'\r\n';}if (sint1 == 2){ var num10 = Convert.ToByte(myPLC.Read(PLCcomboBox.Text addresstextBox.Text));int num10_1 = (byte)num10;if (num10_1 > 127){ num10_1 = num10_1 - 256;} readshuj.Text = '【'DateTime.Now'】' PLCcomboBox.Text addresstextBox.Text '：'num10_1.ToString()'\r\n';}if (sint1 == 3){ var num11 = (ushort)myPLC.Read(PLCcomboBox.Text addresstextBox.Text);if (num11 > 32767){ num11 = (ushort)(num11 - 65536);} readshuj.Text = '【'DateTime.Now'】' PLCcomboBox.Text addresstextBox.Text '：'num11.ToString()'\r\n';}
}
privatevoidPLCcomboBox_SelectedIndexChanged(object sender, EventArgs e){switch(PLCcomboBox.Text){case'I': sint1 = 1;break;case'Q': sint1 = 1;break;case'M': sint1 = 1;break;case'IB': sint1 = 2;break;case'QB': sint1 = 2;break;case'MB': sint1 = 2;break;case'IW': sint1 = 3;break;case'QW': sint1 = 3;break;case'MW': sint1 = 3;break;}}
bool a = false;privatevoidbutton4_Click(object sender, EventArgs e){try{if (a != true&&LJzhuangtia==true){ timer1.Enabled = true; button4.Text = '讀取中…'; a = true;}else{ timer1.Enabled = false; a = false; button4.Text = '連續讀取';}}catch(Exception){
throw;}
}
privatevoidtimer1_Tick(object sender, EventArgs e){duqu();}
privatevoidreadshuj_TextChanged(object sender, EventArgs e){ readshuj.SelectionStart = readshuj.Text.Length;
readshuj.ScrollToCaret();}
privatevoidbutton5_Click(object sender, EventArgs e){ readshuj.Text = string.Empty;}
privatevoidSHUjucomboBox_SelectedIndexChanged(object sender, EventArgs e){if (SHUjucomboBox.Text == 'PLCNUMBER'){ PLCcomboBox.Visible = true; NUMBERlabe6.Text = '數據類型：';}else{ PLCcomboBox.Visible = false; NUMBERlabe6.Text = 'DB號：';}}
privatevoidbutton6_Click(object sender, EventArgs e){xieru();}privatevoidxieru(){if (LJzhuangtia != false){try{switch(WirtcomboBox.Text){case'BOOL':myPLC.Write('DB'WDBtextBox.Text'.DBX' WADDtextBox.Text, Convert.ToBoolean( BoolcomboBox.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】''DB'WDBtextBox.Text'.DBX'WADDtextBox.Text'寫入:'BoolcomboBox.Text'\r\n';break;case'BYTE':myPLC.Write('DB'WDBtextBox.Text'.DBB' WADDtextBox.Text, Convert.ToByte(wirtnumber.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】''DB'WDBtextBox.Text'.DBB'WADDtextBox.Text'寫入:'wirtnumber.Text'\r\n';break;case'READ'://float numuint = (Convert.ToUInt32( wirtnumber.Text)).ConvertToFloat();float numfloat = (float)Convert.ToDouble(wirtnumber.Text);myPLC.Write('DB'WDBtextBox.Text'.DBD' WADDtextBox.Text, numfloat); WirtrichTextBo.Text = '【'DateTime.Now'】''DB'WDBtextBox.Text'.DBD'WADDtextBox.Text'寫入:'wirtnumber.Text'\r\n';
break;case'INT':myPLC.Write('DB'WDBtextBox.Text'.DBW' WADDtextBox.Text, Convert.ToInt16(wirtnumber.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】''DB'WDBtextBox.Text'.DBW'WADDtextBox.Text'寫入:'wirtnumber.Text'\r\n';break;case'DNIT':myPLC.Write('DB'WDBtextBox.Text'.DBD' WADDtextBox.Text, Convert.ToInt32(wirtnumber.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】''DB'WDBtextBox.Text'.DBD'WADDtextBox.Text'寫入:'wirtnumber.Text'\r\n';
break;case'WORD':myPLC.Write('DB'WDBtextBox.Text'.DBW' WADDtextBox.Text, Convert.ToInt16(wirtnumber.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】''DB'WDBtextBox.Text'.DBW'WADDtextBox.Text'寫入:'wirtnumber.Text'\r\n';break;case'DWORD':myPLC.Write('DB'WDBtextBox.Text'.DBD' WADDtextBox.Text, Convert.ToInt32(wirtnumber.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】''DB'WDBtextBox.Text'.DBD'WADDtextBox.Text'寫入:'wirtnumber.Text'\r\n';break;case'STRING'://S7String讀取
break;case'PLCNUMBER':PLCwirt();break;}
}catch(Exception){
return;}}else{MessageBox.Show('請先連接PLC','提示');}
}
privatevoidPLCwirt(){if (sint2 == 1){ myPLC.Write(PLCwitbox.Text WADDtextBox.Text, Convert.ToBoolean(BoolcomboBox.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】' PLCwitbox.Text WADDtextBox.Text '寫入:'BoolcomboBox.Text'\r\n';}if(sint2==2){ myPLC.Write(PLCwitbox.Text WADDtextBox.Text, Convert.ToByte(wirtnumber.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】' PLCwitbox.Text WADDtextBox.Text '寫入:'wirtnumber.Text'\r\n';}if (sint2 == 3){ myPLC.Write(PLCwitbox.Text WADDtextBox.Text, Convert.ToInt16(wirtnumber.Text)); WirtrichTextBo.Text = '【'DateTime.Now'】' PLCwitbox.Text WADDtextBox.Text '寫入:'wirtnumber.Text'\r\n';}}privatevoidWDBtextBox_KeyPress(object sender, KeyPressEventArgs e){}
privatevoidWirtcomboBox_SelectedIndexChanged(object sender, EventArgs e){if(WirtcomboBox.Text=='BOOL'){ BoolcomboBox.Visible = true;wirtnumber.Visible=false;}else{ BoolcomboBox.Visible = false; wirtnumber.Visible = true;}if(WirtcomboBox.Text == 'PLCNUMBER'){ PLCwitbox.Visible = true;}else{ PLCwitbox.Visible = false;}}
privatevoidPLCwitbox_SelectedIndexChanged_1(object sender, EventArgs e){switch(PLCwitbox.Text){case'I': sint2 = 1;break;case'Q': sint2 = 1;break;case'M': sint2 = 1;break;case'IB': sint2 = 2;break;case'QB': sint2 = 2;break;case'MB': sint2 = 2;break;case'IW': sint2 = 3;break;case'QW': sint2 = 3;break;case'MW': sint2 = 3;break;}if(sint2==1){ BoolcomboBox.Visible = true; wirtnumber.Visible = false;}else{ BoolcomboBox.Visible = false; wirtnumber.Visible = true;}}
privatevoidgroupBox5_Enter(object sender, EventArgs e){
}boolb;privatevoidbutton7_Click(object sender, EventArgs e){if (b != true&LJzhuangtia==true){ timer2.Enabled = true; button7.Text = '寫入中…'; b = true;}else{ timer2.Enabled = false; b = false; button7.Text = '連續寫入';}}
privatevoidtimer2_Tick(object sender, EventArgs e){xieru();}
privatevoidbutton8_Click(object sender, EventArgs e){ WirtrichTextBo.Text = '';}
privatevoidWirtrichTextBo_TextChanged(object sender, EventArgs e){ WirtrichTextBo.SelectionStart = WirtrichTextBo.Text.Length;
WirtrichTextBo.ScrollToCaret();}}}
0條評論