上面四篇我们进行封装连接PLC以及读写PLC内存地址表
C#使用TCP-S7协议读写西门子PLC(一)-CSDN博客
C#使用TCP-S7协议读写西门子PLC(二)-CSDN博客
C#使用TCP-S7协议读写西门子PLC(三)-CSDN博客
C#使用TCP-S7协议读写西门子PLC(四)-CSDN博客
这里我们进行测试操作
西门子PLC-S7协议测试读写基础数据类型、字符串、Unicode字符串、连续数组等
窗体应用程序PlcSiemesS7Demo应用程序文件清单如下图所示
窗体FormS7Protocol设计器如下：
窗体设计器代码如下：
文件FormS7Protocol.Designer.cs
namespace PlcSiemesS7Demo
{
partial class FormS7Protocol
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要修改
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.panel1 = new System.Windows.Forms.Panel();
this.cboSiemensPLCCategory = new System.Windows.Forms.ComboBox();
this.label2 = new System.Windows.Forms.Label();
this.btnDisconnect = new System.Windows.Forms.Button();
this.btnConnect = new System.Windows.Forms.Button();
this.txbPort = new System.Windows.Forms.TextBox();
this.label3 = new System.Windows.Forms.Label();
this.txbIP = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.rtxbDisplay = new System.Windows.Forms.RichTextBox();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.btnReadWString = new System.Windows.Forms.Button();
this.label12 = new System.Windows.Forms.Label();
this.txtReadValWString = new System.Windows.Forms.TextBox();
this.label13 = new System.Windows.Forms.Label();
this.txtReadWStringLength = new System.Windows.Forms.TextBox();
this.rtxtReadValArray = new System.Windows.Forms.RichTextBox();
this.btnReadArray = new System.Windows.Forms.Button();
this.label9 = new System.Windows.Forms.Label();
this.label8 = new System.Windows.Forms.Label();
this.txtReadArrayLength = new System.Windows.Forms.TextBox();
this.btnReadString = new System.Windows.Forms.Button();
this.label7 = new System.Windows.Forms.Label();
this.txtReadValString = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.txtReadStringLength = new System.Windows.Forms.TextBox();
this.btnReadBasic = new System.Windows.Forms.Button();
this.label5 = new System.Windows.Forms.Label();
this.txtReadValBasic = new System.Windows.Forms.TextBox();
this.cboReadDataType = new System.Windows.Forms.ComboBox();
this.label6 = new System.Windows.Forms.Label();
this.label10 = new System.Windows.Forms.Label();
this.label11 = new System.Windows.Forms.Label();
this.txtOffsetAddress = new System.Windows.Forms.TextBox();
this.cboRegisterCategory = new System.Windows.Forms.ComboBox();
this.groupBox2 = new System.Windows.Forms.GroupBox();
this.btnWriteWString = new System.Windows.Forms.Button();
this.label14 = new System.Windows.Forms.Label();
this.txtWriteValWString = new System.Windows.Forms.TextBox();
this.label15 = new System.Windows.Forms.Label();
this.txtWriteWStringLength = new System.Windows.Forms.TextBox();
this.rtxtWriteValArray = new System.Windows.Forms.RichTextBox();
this.btnWriteArray = new System.Windows.Forms.Button();
this.label16 = new System.Windows.Forms.Label();
this.btnWriteString = new System.Windows.Forms.Button();
this.label18 = new System.Windows.Forms.Label();
this.txtWriteValString = new System.Windows.Forms.TextBox();
this.label19 = new System.Windows.Forms.Label();
this.txtWriteStringLength = new System.Windows.Forms.TextBox();
this.btnWriteBasic = new System.Windows.Forms.Button();
this.label20 = new System.Windows.Forms.Label();
this.txtWriteValBasic = new System.Windows.Forms.TextBox();
this.cboWriteDataType = new System.Windows.Forms.ComboBox();
this.label21 = new System.Windows.Forms.Label();
this.label22 = new System.Windows.Forms.Label();
this.txtDbNumber = new System.Windows.Forms.TextBox();
this.panel1.SuspendLayout();
this.groupBox1.SuspendLayout();
this.groupBox2.SuspendLayout();
this.SuspendLayout();
//
// panel1
//
this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.panel1.Controls.Add(this.cboSiemensPLCCategory);
this.panel1.Controls.Add(this.label2);
this.panel1.Controls.Add(this.btnDisconnect);
this.panel1.Controls.Add(this.btnConnect);
this.panel1.Controls.Add(this.txbPort);
this.panel1.Controls.Add(this.label3);
this.panel1.Controls.Add(this.txbIP);
this.panel1.Controls.Add(this.label1);
this.panel1.Location = new System.Drawing.Point(4, 4);
this.panel1.Margin = new System.Windows.Forms.Padding(3, 4, 3, 4);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(611, 87);
this.panel1.TabIndex = 2;
//
// cboSiemensPLCCategory
//
this.cboSiemensPLCCategory.FormattingEnabled = true;
this.cboSiemensPLCCategory.Location = new System.Drawing.Point(122, 52);
this.cboSiemensPLCCategory.Name = "cboSiemensPLCCategory";
this.cboSiemensPLCCategory.Size = new System.Drawing.Size(206, 20);
this.cboSiemensPLCCategory.TabIndex = 14;
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(8, 52);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(95, 12);
this.label2.TabIndex = 13;
this.label2.Text = "西门子PLC型号：";
//
// btnDisconnect
//
this.btnDisconnect.Enabled = false;
this.btnDisconnect.Location = new System.Drawing.Point(494, 14);
this.btnDisconnect.Name = "btnDisconnect";
this.btnDisconnect.Size = new System.Drawing.Size(91, 28);
this.btnDisconnect.TabIndex = 5;
this.btnDisconnect.Text = "断开连接";
this.btnDisconnect.UseVisualStyleBackColor = true;
this.btnDisconnect.Click += new System.EventHandler(this.btnDisconnect_Click);
//
// btnConnect
//
this.btnConnect.Location = new System.Drawing.Point(371, 14);
this.btnConnect.Name = "btnConnect";
this.btnConnect.Size = new System.Drawing.Size(91, 28);
this.btnConnect.TabIndex = 4;
this.btnConnect.Text = "连接";
this.btnConnect.UseVisualStyleBackColor = true;
this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click);
//
// txbPort
//
this.txbPort.Location = new System.Drawing.Point(238, 14);
this.txbPort.Name = "txbPort";
this.txbPort.Size = new System.Drawing.Size(90, 21);
this.txbPort.TabIndex = 3;
this.txbPort.Text = "102";
//
// label3
//
this.label3.AutoSize = true;
this.label3.Location = new System.Drawing.Point(184, 17);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(53, 12);
this.label3.TabIndex = 2;
this.label3.Text = "端口号：";
//
// txbIP
//
this.txbIP.Location = new System.Drawing.Point(62, 14);
this.txbIP.Name = "txbIP";
this.txbIP.Size = new System.Drawing.Size(106, 21);
this.txbIP.TabIndex = 1;
this.txbIP.Text = "192.168.1.10";
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(8, 17);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(53, 12);
this.label1.TabIndex = 0;
this.label1.Text = "IP地址：";
//
// rtxbDisplay
//
this.rtxbDisplay.Location = new System.Drawing.Point(4, 622);
this.rtxbDisplay.Name = "rtxbDisplay";
this.rtxbDisplay.ReadOnly = true;
this.rtxbDisplay.Size = new System.Drawing.Size(943, 232);
this.rtxbDisplay.TabIndex = 3;
this.rtxbDisplay.Text = "";
//
// groupBox1
//
this.groupBox1.Controls.Add(this.btnReadWString);
this.groupBox1.Controls.Add(this.label12);
this.groupBox1.Controls.Add(this.txtReadValWString);
this.groupBox1.Controls.Add(this.label13);
this.groupBox1.Controls.Add(this.txtReadWStringLength);
this.groupBox1.Controls.Add(this.rtxtReadValArray);
this.groupBox1.Controls.Add(this.btnReadArray);
this.groupBox1.Controls.Add(this.label9);
this.groupBox1.Controls.Add(this.label8);
this.groupBox1.Controls.Add(this.txtReadArrayLength);
this.groupBox1
