Modbus通信、tcp、udp
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代码：
using Modbus.Device; using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Diagnostics.Metrics; using System.Drawing; using System.IO.Ports; using System.Linq; using System.Net.Sockets; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using static System.Runtime.InteropServices.JavaScript.JSType; namespace WinUpperCourse { public partial class WinNModbus4Test : Form { public WinNModbus4Test() { InitializeComponent(); } //声明串口 SerialPort serialPort = null; TcpClient tcpClient = null; UdpClient udpClient = null; //创建主站对象 IModbusSerialMaster modbusSerialMaster = null; //串口 IModbusMaster modbusMaster = null;//网口 private void WinNModbus4Test_Load(object sender, EventArgs e) { //初始化控件值 this.cmInfoType.Items.AddRange(new[] { "串口", "TCP", "UDP" }); this.cmInfoType.SelectedIndex=0; //初始化串口 string[] portItem = SerialPort.GetPortNames(); this.cmPort.Items.AddRange(portItem); this.cmPort.SelectedIndex = 0; this.cmBaudRate.Items.Add("9600"); this.cmBaudRate.SelectedIndex = 0; Parity[] parityItem = new[] { Parity.None, Parity.Odd, Parity.Even }; cmParity.Items.AddRange(parityItem.Cast<object>().ToArray()); this.cmParity.SelectedIndex = 0; this.cmDataBits.Items.AddRange(new string[] { "8", "9" }); this.cmDataBits.SelectedIndex = 0; StopBits[] stopBitsItem = new[] { StopBits.One, StopBits.None }; this.cmStopBits.Items.AddRange(stopBitsItem.Cast<object>().ToArray()); this.cmStopBits.SelectedIndex = 0; this.txtIP.Text="127.0.0.1"; this.txtPort.Text="302"; this.btnStatue.Text="未连接"; this.rdRTU.Checked=true; } /// <summary> /// 通信方式选择改变事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void cmInfoType_SelectedIndexChanged(object sender, EventArgs e) { if (this.cmInfoType.Text=="串口") { this.txtIP.Enabled = false; this.txtPort.Enabled = false; this.cmPort.Enabled = true; this.cmPort.Enabled=true; this.cmBaudRate.Enabled = true; this.cmParity.Enabled = true; this.cmDataBits.Enabled = true; this.cmStopBits.Enabled = true; this.cmParity.Enabled = true; } else { this.cmPort.Enabled = false; this.cmPort.Enabled=false; this.cmBaudRate.Enabled = false; this.cmParity.Enabled = false; this.cmDataBits.Enabled = false; this.cmStopBits.Enabled = false; this.cmParity.Enabled = false; this.txtIP.Enabled = true; this.txtPort.Enabled = true; } } /// <summary> /// 打开连接 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnOpen_Click(object sender, EventArgs e) { //如果是串口 if (this.cmInfoType.Text=="串口") { // 1. 转换波特率、数据位 int baudRate = int.Parse(cmBaudRate.Text); int dataBits = int.Parse(cmDataBits.Text); // 2. 校验位文本转 Parity 枚举 校验位 // Enum.TryParse(cmParity.Text, true, out Parity parity); Parity parity = Enum.Parse<Parity>(cmParity.Text); // 3. 停止位文本转 StopBits 枚举 停止位 Enum.TryParse(cmStopBits.Text, true, out StopBits stopBits); // 4. 实例化串口 serialPort = new SerialPort( cmPort.Text, baudRate, parity, dataBits, stopBits ); //打开 serialPort.Open(); if (serialPort!=null&&serialPort.IsOpen) { this.Invoke(new Action(() => { this.btnStatue.Text = "串口已连接"; })); //判断是 RTU还是ASCII if (rdRTU.Checked==true) { //创建RTU主站 modbusSerialMaster=ModbusSerialMaster.CreateRtu(serialPort); } else { modbusSerialMaster=ModbusSerialMaster.CreateAscii(serialPort); } } } else { //tcp if (this.cmInfoType.Text=="TCP") { tcpClient=new TcpClient(this.txtIP.Text, int.Parse(this.txtPort.Text)); this.Invoke(new Action(() => { this.btnStatue.Text = "tcp已连接"; })); modbusMaster=ModbusIpMaster.CreateIp(tcpClient); } else //upd { udpClient=new UdpClient(this.txtIP.Text, int.Parse(this.txtPort.Text)); this.Invoke(new Action(() => { this.btnStatue.Text = "upd已连接"; })); modbusMaster=ModbusIpMaster.CreateIp(udpClient); } } } /// <summary> /// 断开连接 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnClose_Click(object sender, EventArgs e) { if (this.cmInfoType.Text=="串口") { serialPort.Close(); this.Invoke(new Action(() => { this.btnStatue.Text = "串口连接断开"; })); } else if (this.cmInfoType.Text=="TCP") { tcpClient.Close(); this.Invoke(new Action(() => { this.btnStatue.Text="TCP连接断开"; })); } else { udpClient.Close(); this.Invoke(new Action(() => { this.btnStatue.Text="UDP连接断开"; })); } } /// <summary> /// 读取数据 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnRead_Click(object sender, EventArgs e) { OperationAction(1); } /// <summary> /// 写入 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnWrite_Click(object sender, EventArgs e) { OperationAction(2); } /// <summary> /// 读写操作 /// </summary> /// <param name="type">1：读，2：写</param> public void OperationAction(int type) { //从站地址 byte slaveId = byte.Parse(this.txtSlaveId.Text); //开始地址 ushort startAddres = ushort.Parse(this.txtStartAdders.Text); //写入开始地址 ushort writeStartAdder = 0; if(type==2) { writeStartAdder= ushort.Parse(this.txtWriteStartAdder.Text); } //读取数量 ushort count = ushort.Parse(this.txtReadQty.Text); //功能码 byte funtionCode = byte.Parse(this.txtFuntionCode.Text); bool[] bValue = null; ushort[] uValue = null; switch (funtionCode) { //写操作 只能是功能码1和3 读写都可以, 2和4是只读 case 1://读线一个或多个圈状态 if (type==1) { if (this.cmInfoType.Text=="串口") { bValue = modbusSerialMaster.ReadCoils(slaveId, startAddres, count); //异步方法 读取一个或多个保持型寄存器，返回 Task<ushort[]>类型 Task<bool[]> task01 = Task.Run(async () => { return await modbusSerialMaster.ReadCoilsAsync(slaveId, startAddres, count); }); //获取返回的数组 bool[] datas1 = task01.Result; } else //tcp udp { bValue = modbusMaster.ReadCoils(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", bValue)); } else { //写入线圈 // bValue= this.txtValue.Text.Split(',').Select(str => str=="1" ? true : false).ToArray(); bValue= this.txtValue.Text .Split(',', StringSplitOptions.RemoveEmptyEntries) .Select(str => str.Trim() == "1" ? true : false) .ToArray(); if (this.cmInfoType.Text=="串口") { //写入多线圈 if (bValue.Length>1) { modbusSerialMaster.WriteMultipleCoils(slaveId, writeStartAdder, bValue); } else { modbusSerialMaster.WriteSingleCoil(slaveId, writeStartAdder, bValue[0]); } } else //tcp udp { //写入多线圈 if (bValue.Length>1) { modbusMaster.WriteMultipleCoils(slaveId, writeStartAdder, bValue); } else { modbusMaster.WriteSingleCoil(slaveId, writeStartAdder, bValue[0]); } } } break; case 2: //读一个或多个输入线圈 if (this.cmInfoType.Text=="串口") { bValue = modbusSerialMaster.ReadInputs(slaveId, startAddres, count); } else //tcp udp { bValue = modbusMaster.ReadInputs(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", bValue)); break; case 3: //读一个或多个保持寄存器 if(type==1) { if (this.cmInfoType.Text=="串口") { uValue = modbusSerialMaster.ReadHoldingRegisters(slaveId, startAddres, count); //异步方法 读取一个或多个保持型寄存器，返回 Task<ushort[]>类型 Task<ushort[]> task01 = Task.Run(async () => { return await modbusSerialMaster.ReadHoldingRegistersAsync(slaveId, startAddr, count); }); //获取返回的数组 ushort[] datas1 = task01.Result; } else //tcp udp { uValue = modbusMaster.ReadHoldingRegisters(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", uValue)); } else { ushort[] sValue = this.txtValue.Text .Split(',', StringSplitOptions.RemoveEmptyEntries) .Select(str => ushort.Parse(str.Trim())) .ToArray(); if (this.cmInfoType.Text=="串口") { //写入多线圈 if (sValue.Length>1) { modbusSerialMaster.WriteMultipleRegisters(slaveId, writeStartAdder, sValue); } else { modbusSerialMaster.WriteSingleRegister(slaveId, writeStartAdder, sValue[0]); //或用异步方法 Task.Run(async () => { await modbusSerialMaster.WriteSingleRegisterAsync(slaveId, writeStartAdder, sValue[0]); }); } } else //tcp udp { //写入多线圈 if (sValue.Length>1) { modbusMaster.WriteMultipleRegisters(slaveId, writeStartAdder, sValue); //或者使用异步 Task.Run(async () => { await modbusMaster.WriteMultipleRegistersAsync(slaveId, writeStartAdder, sValue); }); } else { modbusMaster.WriteSingleRegister(slaveId, writeStartAdder, sValue[0]); } } } break; case 4: //读一个或多个输入寄存器 if (this.cmInfoType.Text=="串口") { uValue = modbusSerialMaster.ReadInputRegisters(slaveId, startAddres, count); } else //tcp udp { uValue = modbusMaster.ReadInputRegisters(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", uValue)); break; } } } }
using Modbus.Device;using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Diagnostics.Metrics;using System.Drawing;using System.IO.Ports;using System.Linq;using System.Net.Sockets;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using static System.Runtime.InteropServices.JavaScript.JSType;namespace WinUpperCourse{ public partial class WinNModbus4Test : Form { public WinNModbus4Test() { InitializeComponent(); } //声明串口 SerialPort serialPort = null; TcpClient tcpClient = null; UdpClient udpClient = null; //创建主站对象 IModbusSerialMaster modbusSerialMaster = null; //串口 IModbusMaster modbusMaster = null;//网口 private void WinNModbus4Test_Load(object sender, EventArgs e) { //初始化控件值 this.cmInfoType.Items.AddRange(new[] { "串口", "TCP", "UDP" }); this.cmInfoType.SelectedIndex=0; //初始化串口 string[] portItem = SerialPort.GetPortNames(); this.cmPort.Items.AddRange(portItem); this.cmPort.SelectedIndex = 0; this.cmBaudRate.Items.Add("9600"); this.cmBaudRate.SelectedIndex = 0;
Parity[] parityItem = new[] { Parity.None, Parity.Odd, Parity.Even }; cmParity.Items.AddRange(parityItem.Cast<object>().ToArray()); this.cmParity.SelectedIndex = 0; this.cmDataBits.Items.AddRange(new string[] { "8", "9" }); this.cmDataBits.SelectedIndex = 0; StopBits[] stopBitsItem = new[] { StopBits.One, StopBits.None }; this.cmStopBits.Items.AddRange(stopBitsItem.Cast<object>().ToArray()); this.cmStopBits.SelectedIndex = 0;
this.txtIP.Text="127.0.0.1"; this.txtPort.Text="302";
this.btnStatue.Text="未连接";
this.rdRTU.Checked=true; } /// <summary> /// 通信方式选择改变事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void cmInfoType_SelectedIndexChanged(object sender, EventArgs e) { if (this.cmInfoType.Text=="串口") { this.txtIP.Enabled = false; this.txtPort.Enabled = false;
this.cmPort.Enabled = true; this.cmPort.Enabled=true; this.cmBaudRate.Enabled = true; this.cmParity.Enabled = true; this.cmDataBits.Enabled = true; this.cmStopBits.Enabled = true; this.cmParity.Enabled = true; } else { this.cmPort.Enabled = false; this.cmPort.Enabled=false; this.cmBaudRate.Enabled = false; this.cmParity.Enabled = false; this.cmDataBits.Enabled = false; this.cmStopBits.Enabled = false; this.cmParity.Enabled = false;
this.txtIP.Enabled = true; this.txtPort.Enabled = true; } } /// <summary> /// 打开连接 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnOpen_Click(object sender, EventArgs e) { //如果是串口 if (this.cmInfoType.Text=="串口") { // 1. 转换波特率、数据位 int baudRate = int.Parse(cmBaudRate.Text); int dataBits = int.Parse(cmDataBits.Text);
// 2. 校验位文本转 Parity 枚举 校验位 // Enum.TryParse(cmParity.Text, true, out Parity parity); Parity parity = Enum.Parse<Parity>(cmParity.Text); // 3. 停止位文本转 StopBits 枚举 停止位 Enum.TryParse(cmStopBits.Text, true, out StopBits stopBits);
// 4. 实例化串口 serialPort = new SerialPort( cmPort.Text, baudRate, parity, dataBits, stopBits ); //打开 serialPort.Open(); if (serialPort!=null&&serialPort.IsOpen) { this.Invoke(new Action(() => { this.btnStatue.Text = "串口已连接"; })); //判断是 RTU还是ASCII if (rdRTU.Checked==true) { //创建RTU主站 modbusSerialMaster=ModbusSerialMaster.CreateRtu(serialPort); } else { modbusSerialMaster=ModbusSerialMaster.CreateAscii(serialPort); } }
} else { //tcp if (this.cmInfoType.Text=="TCP") { tcpClient=new TcpClient(this.txtIP.Text, int.Parse(this.txtPort.Text)); this.Invoke(new Action(() => { this.btnStatue.Text = "tcp已连接"; }));
modbusMaster=ModbusIpMaster.CreateIp(tcpClient); } else //upd { udpClient=new UdpClient(this.txtIP.Text, int.Parse(this.txtPort.Text)); this.Invoke(new Action(() => { this.btnStatue.Text = "upd已连接"; })); modbusMaster=ModbusIpMaster.CreateIp(udpClient); } } } /// <summary> /// 断开连接 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnClose_Click(object sender, EventArgs e) { if (this.cmInfoType.Text=="串口") { serialPort.Close(); this.Invoke(new Action(() => { this.btnStatue.Text = "串口连接断开"; }));
} else if (this.cmInfoType.Text=="TCP") { tcpClient.Close(); this.Invoke(new Action(() => { this.btnStatue.Text="TCP连接断开"; }));
} else { udpClient.Close(); this.Invoke(new Action(() => { this.btnStatue.Text="UDP连接断开"; }));
} } /// <summary> /// 读取数据 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnRead_Click(object sender, EventArgs e) { OperationAction(1); } /// <summary> /// 写入 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnWrite_Click(object sender, EventArgs e) { OperationAction(2); } /// <summary> /// 读写操作 /// </summary> /// <param name="type">1：读，2：写</param> public void OperationAction(int type) { //从站地址 byte slaveId = byte.Parse(this.txtSlaveId.Text); //开始地址 ushort startAddres = ushort.Parse(this.txtStartAdders.Text); //写入开始地址 ushort writeStartAdder = 0; if(type==2) { writeStartAdder= ushort.Parse(this.txtWriteStartAdder.Text); } //读取数量 ushort count = ushort.Parse(this.txtReadQty.Text); //功能码 byte funtionCode = byte.Parse(this.txtFuntionCode.Text); bool[] bValue = null; ushort[] uValue = null; switch (funtionCode) { //写操作 只能是功能码1和3 读写都可以, 2和4是只读 case 1://读线一个或多个圈状态 if (type==1) { if (this.cmInfoType.Text=="串口") { bValue = modbusSerialMaster.ReadCoils(slaveId, startAddres, count); //异步方法 读取一个或多个保持型寄存器，返回 Task<ushort[]>类型 Task<bool[]> task01 = Task.Run(async () => { return await modbusSerialMaster.ReadCoilsAsync(slaveId, startAddres, count); }); //获取返回的数组 bool[] datas1 = task01.Result; } else //tcp udp { bValue = modbusMaster.ReadCoils(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", bValue)); } else { //写入线圈 // bValue= this.txtValue.Text.Split(',').Select(str => str=="1" ? true : false).ToArray(); bValue= this.txtValue.Text .Split(',', StringSplitOptions.RemoveEmptyEntries) .Select(str => str.Trim() == "1" ? true : false) .ToArray();
if (this.cmInfoType.Text=="串口") { //写入多线圈 if (bValue.Length>1) { modbusSerialMaster.WriteMultipleCoils(slaveId, writeStartAdder, bValue); } else { modbusSerialMaster.WriteSingleCoil(slaveId, writeStartAdder, bValue[0]); } } else //tcp udp { //写入多线圈 if (bValue.Length>1) { modbusMaster.WriteMultipleCoils(slaveId, writeStartAdder, bValue); } else { modbusMaster.WriteSingleCoil(slaveId, writeStartAdder, bValue[0]); }
} }
break; case 2: //读一个或多个输入线圈
if (this.cmInfoType.Text=="串口") { bValue = modbusSerialMaster.ReadInputs(slaveId, startAddres, count); } else //tcp udp { bValue = modbusMaster.ReadInputs(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", bValue)); break; case 3: //读一个或多个保持寄存器 if(type==1) { if (this.cmInfoType.Text=="串口") { uValue = modbusSerialMaster.ReadHoldingRegisters(slaveId, startAddres, count); //异步方法 读取一个或多个保持型寄存器，返回 Task<ushort[]>类型 Task<ushort[]> task01 = Task.Run(async () => { return await modbusSerialMaster.ReadHoldingRegistersAsync(slaveId, startAddr, count); }); //获取返回的数组 ushort[] datas1 = task01.Result; } else //tcp udp { uValue = modbusMaster.ReadHoldingRegisters(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", uValue)); } else { ushort[] sValue = this.txtValue.Text .Split(',', StringSplitOptions.RemoveEmptyEntries) .Select(str => ushort.Parse(str.Trim())) .ToArray(); if (this.cmInfoType.Text=="串口") { //写入多线圈 if (sValue.Length>1) { modbusSerialMaster.WriteMultipleRegisters(slaveId, writeStartAdder, sValue); } else { modbusSerialMaster.WriteSingleRegister(slaveId, writeStartAdder, sValue[0]); //或用异步方法 Task.Run(async () => { await modbusSerialMaster.WriteSingleRegisterAsync(slaveId, writeStartAdder, sValue[0]); }); } } else //tcp udp { //写入多线圈 if (sValue.Length>1) { modbusMaster.WriteMultipleRegisters(slaveId, writeStartAdder, sValue); //或者使用异步 Task.Run(async () => { await modbusMaster.WriteMultipleRegistersAsync(slaveId, writeStartAdder, sValue); });
} else { modbusMaster.WriteSingleRegister(slaveId, writeStartAdder, sValue[0]); }
} } break; case 4: //读一个或多个输入寄存器 if (this.cmInfoType.Text=="串口") { uValue = modbusSerialMaster.ReadInputRegisters(slaveId, startAddres, count); } else //tcp udp { uValue = modbusMaster.ReadInputRegisters(slaveId, startAddres, count); } this.lbData.Items.Add(string.Join(",", uValue)); break;
} } }}
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