![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418221302-6802ce6e4ae34.png\")
<\/p>\n\u5927\u5bb6\u597d！\u6211\u662f\u4ed8\u5de5\u3002<\/p>\n
\u901a\u900f！\u7ec8\u4e8e\u628aModbusRTU\u5f04\u660e\u767d\u4e86<\/p>\n
\u8fd9\u6837\u770b\u6765，ModbusTCP\u534f\u8bae\u592a\u7b80\u5355\u4e86<\/p>\n
\u592a\u7b80\u5355\u4e86！C#\u8f7b\u677e\u5b9e\u73b0Modbus\u901a\u4fe1<\/p>\n
\u524d\u9762\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e86\u4e00\u7cfb\u5217\u5173\u4e8eModbus\u548cModbusTCP\u7684\u77e5\u8bc6，\u4e3b\u8981\u9488\u5bf9\u7684\u662fModbusTCP\u5ba2\u6237\u7aef\u3002<\/p>\n
\u5728\u5b9e\u9645\u5f00\u53d1\u8fc7\u7a0b\u4e2d，\u6709\u53ef\u80fd\u4f1a\u9700\u8981\u5f00\u653e\u6570\u636e\u63a5\u53e3\u7ed9PLC\u6216\u7b2c\u4e09\u65b9\u5382\u5bb6\u3002<\/p>\n
\u4eca\u5929\u7ed9\u5927\u5bb6\u5206\u4eab\u4e00\u4e0b，\u5982\u4f55\u57fa\u4e8eC#\u6765ModbusTCP\u670d\u52a1\u5668\u63a5\u53e3\u3002<\/p>\n
ModbusTCP\u670d\u52a1\u5668\u7684\u672c\u8d28\u5c31\u662fTCP\u670d\u52a1\u5668，\u6839\u636e\u8bc6\u522bModbusTCP\u8bf7\u6c42\u62a5\u6587，\u8fd4\u56de\u5bf9\u5e94\u7684ModbusTCP\u62a5\u6587\u3002<\/p>\n
\u867d\u7136\u539f\u7406\u5f88\u5bb9\u6613\u7406\u89e3，\u4f46\u662f\u81ea\u5df1\u5f00\u53d1\u8fd8\u662f\u9700\u8981\u4e00\u70b9\u65f6\u95f4\u7684，\u5f53\u7136\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5f00\u6e90\u5e93\u6765\u5b9e\u73b0，\u6211\u4eec\u8fd9\u91cc\u91c7\u7528\u7684\u662fNModbus4\u3002<\/p>\n
NModbus4\u662f\u4e00\u4e2a\u5f00\u653e\u6e90\u7801\u7684Modbus\u5e93\u3002<\/p>\n
\u6211\u4eec\u901a\u8fc7Nuget\u641c\u7d22NModbus4\u5373\u53ef\u641c\u7d22\u5b89\u88c5\u3002<\/p>\n<\/p>\n
<\/p>\n
\u5b89\u88c5\u597dNModbus4\u540e，\u6211\u4eec\u8fdb\u884c\u5c01\u88c5\u4e00\u4e0b，\u521b\u5efa\u4e00\u4e2aModbusTCPServer\u7c7b，\u5bf9\u4e8e\u8fdb\u884c\u5c01\u88c5，\u5c01\u88c5\u4e86\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u6cd5：<\/p>\n
\u65b9\u6cd5\u4e00：\u5f00\u542f\u670d\u52a1<\/p>\n
\/\/ModbusTcpSlave\u5bf9\u8c61
\nprivate ModbusTcpSlave modbusTcpSlave = null;
\n\/\/TcpListener\u5bf9\u8c61
\nprivate TcpListener tcpListener;
\npublic void StartServer(string ip, int port)
\n{
\n tcpListener = new TcpListener(IPAddress.Parse(ip), port);
\n modbusTcpSlave = ModbusTcpSlave.CreateTcp(1, tcpListener);
\n modbusTcpSlave.Listen();
\n}<\/p>\n
\u65b9\u6cd5\u4e8c：\u5173\u95ed\u670d\u52a1<\/p>\n
public void StopServer()
\n {
\n modbusTcpSlave?.Dispose();
\n }<\/p>\n
\u65b9\u6cd5\u4e09：\u5411\u4fdd\u6301\u5bc4\u5b58\u5668\u5b58\u50a8\u533a\u4e2d\u5199\u5165\u6570\u636e<\/p>\n
public void SetHoldingRegisterFloatValue(int offset, float value)
\n{
\n byte[] buffer = BitConverter.GetBytes(value);
\n ushort highValue = BitConverter.ToUInt16(buffer, 0);
\n ushort lowValue = BitConverter.ToUInt16(buffer, 2);
\n \/\/\u83b7\u53d6\u4fdd\u6301\u578b\u5bc4\u5b58\u5668\u5b58\u50a8\u533a
\n ModbusDataCollection<ushort> data = modbusTcpSlave.DataStore.HoldingRegisters;
\n data[offset] = lowValue;
\n data[offset + 1] = highValue;
\n}
\npublic void SetHoldingRegisteUShortValue(int offset, ushort value)
\n{
\n \/\/\u83b7\u53d6\u4fdd\u6301\u578b\u5bc4\u5b58\u5668\u5b58\u50a8\u533a
\n ModbusDataCollection<ushort> data = modbusTcpSlave.DataStore.HoldingRegisters;
\n data[offset] = value;
\n}<\/p>\n
\u65b9\u6cd5\u56db：\u5982\u679c\u9700\u8981\u83b7\u53d6\u62a5\u6587，\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e9b\u4e8b\u4ef6<\/p>\n
public event Action<object, ModbusSlaveRequestEventArgs> ModbusSlaveRequestReceived;
\nprivate void ModbusTcpSlave_ModbusSlaveRequestReceived(object sender, ModbusSlaveRequestEventArgs e)
\n{
\n ModbusSlaveRequestReceived?.Invoke(sender,e);
\n}
\npublic event Action<object, ModbusSlaveRequestEventArgs> ModbusSlaveWriteComplete;
\nprivate void ModbusTcpSlave_WriteComplete(object sender, ModbusSlaveRequestEventArgs e)
\n{
\n ModbusSlaveWriteComplete?.Invoke(sender, e);
\n}<\/p>\n
\u6709\u4e86\u4ee5\u4e0a\u65b9\u6cd5\u540e，\u7f16\u5199\u4e00\u4e2a\u6848\u4f8b\u6765\u8fdb\u884c\u529f\u80fd\u6d4b\u8bd5\u3002<\/p>\n<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418221302-6802ce6e67e0f.png\")
<\/p>\n
\u5f00\u542f\u670d\u52a1\u548c\u5173\u95ed\u670d\u52a1\u4ee3\u7801\u5f88\u7b80\u5355，\u5c31\u662f\u8c03\u7528ModbusTCPServer\u53ca\u5176\u4e2d\u7684\u5bf9\u5e94\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n
private ModbusTCPServer modbusTCPServer = new ModbusTCPServer();
\nprivate void btn_Start_Click(object sender, EventArgs e)
\n{
\n if (this.btn_Start.Text == "\u5f00\u542f\u670d\u52a1")
\n {
\n try
\n {
\n int port = Convert.ToInt32(this.txt_Port.Text);
\n modbusTCPServer.StartServer(this.txt_IP.Text, port);
\n AddLog("\u5f00\u542f\u670d\u52a1\u6210\u529f");
\n this.btn_Start.Text = "\u5173\u95ed\u670d\u52a1";
\n }
\n catch (Exception ex)
\n {
\n AddLog("\u5f00\u542f\u670d\u52a1\u5931\u8d25：" + ex.Message);
\n }
\n }
\n else
\n {
\n modbusTCPServer.StopServer();
\n this.btn_Start.Text = "\u5f00\u542f\u670d\u52a1";
\n }
\n}<\/p>\n
\u670d\u52a1\u5f00\u542f\u540e，\u53ef\u4ee5\u901a\u8fc7\u6309\u94ae\u5411\u6307\u5b9a\u5bc4\u5b58\u5668\u4e2d\u5199\u5165\u6570\u636e，\u8fd9\u91cc\u5df2\u7ecf\u5c01\u88c5\u597d\u4e86\u65b9\u6cd5，\u76f4\u63a5\u8c03\u7528\u5373\u53ef\u3002<\/p>\n
private void btn_WriteFloat_Click(object sender, EventArgs e)
\n {
\n int address = Convert.ToInt32(this.txt_Address.Text);
\n float value = Convert.ToSingle(this.txt_Value.Text);
\n modbusTCPServer.SetHoldingRegisterFloatValue(address, value);
\n AddLog("\u5199\u5165\u5730\u5740：" + address + " \u6d6e\u70b9\u6570：" + value);
\n }
\n private void btn_WriteUShort_Click(object sender, EventArgs e)
\n {
\n int address = Convert.ToInt32(this.txt_Address.Text);
\n ushort value = Convert.ToUInt16(this.txt_Value.Text);
\n modbusTCPServer.SetHoldingRegisteUShortValue(address, value);
\n AddLog("\u5199\u5165\u5730\u5740：" + address + " \u6574\u6570：" + value);
\n }<\/p>\n
\u6700\u7ec8\u5b9e\u73b0\u6548\u679c\u5982\u4e0b\u6240\u793a：<\/p>\n<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418221302-6802ce6e8acdf.png\")
<\/p>\n
\u7528Modbus Poll\u8f6f\u4ef6\u8bfb\u53d6\u7ed3\u5982\u4e0b：<\/p>\n<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418221302-6802ce6eadf1c.png\")
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e8\u6b21\uff0c\u6536\u85cf11\u6b21\u3002\u5927\u5bb6\u597d\uff01\u6211\u662f\u4ed8\u5de5\u3002\u901a\u900f\uff01\u7ec8\u4e8e\u628aModbusRTU\u5f04\u660e\u767d\u4e86\u8fd9\u6837\u770b\u6765\uff0cModbusTCP\u534f\u8bae\u592a\u7b80\u5355\u4e86\u592a\u7b80\u5355\u4e86\uff01C#\u8f7b\u677e\u5b9e\u73b0Modbus\u901a\u4fe1\u524d\u9762\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e86\u4e00\u7cfb\u5217\u5173\u4e8eModbus\u548cModbusTCP\u7684\u77e5\u8bc6\uff0c\u4e3b\u8981\u9488\u5bf9\u7684\u662fModbusTCP\u5ba2\u6237\u7aef\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u6709\u53ef\u80fd\u4f1a\u9700\u8981\u5f00\u653e\u6570\u636e\u63a5\u53e3\u7ed9PLC\u6216\u7b2c\u4e09\u65b9\u5382\u5bb6\u3002\u4eca\u5929\u7ed9\u5927\u5bb6\u5206\u4eab\u4e00\u4e0b\uff0c\u5982\u4f55\u57fa\u4e8eC#\u6765ModbusTCP\u670d\u52a1\u5668\u63a5\u53e3\u3002\u4e00\u3001NModbus4ModbusTCP\u670d\u52a1\u5668\u7684\u672c\u8d28\u5c31\u662fTCP\u670d\u52a1\u5668\uff0c\u6839\u636e\u8bc6\u522bModbusTCP\u8bf7\u6c42\u62a5\u6587\uff0c\u8fd4\u56de\u5bf9\u5e94\u7684_c# modbus tcp<\/p>\n","protected":false},"author":2,"featured_media":22626,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,1743,1742,190,43],"topic":[],"class_list":["post-22630","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-modbustcp","tag-1742","tag-190","tag-43"],"yoast_head":"\n