{"id":13833,"date":"2025-04-18T20:43:10","date_gmt":"2025-04-18T12:43:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/13833.html"},"modified":"2025-04-18T20:43:10","modified_gmt":"2025-04-18T12:43:10","slug":"c%e4%bd%bf%e7%94%a8nmodbus4%e5%ba%93%e5%88%9b%e5%bb%bamodbus-tcp-slave%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ae%80%e5%8d%95%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/13833.html","title":{"rendered":"C#\u4f7f\u7528NModbus4\u5e93\u521b\u5efaModbus TCP Slave(\u670d\u52a1\u5668)\u7b80\u5355\u793a\u4f8b"},"content":{"rendered":"

\u672c\u6587\u7eed\u4e0a\u7bc7Codesys\u2014\u6807\u51c6\u5e93ModbusTCP Master(\u5ba2\u6237\u7aef)\u914d\u5408C#\u7684NModbus4\u5e93\u7684\u901a\u8baf\u793a\u4f8b<\/p>\n

\u94fe\u63a5：https:\/\/blog.csdn.net\/wushangwei2019\/article\/details\/136375234?spm=1001.2014.3001.5501<\/p>\n

\u4e0a\u7bc7\u63cf\u8ff0\u5728Codesys\u7aef\u7684Modbus TCP Master(\u5ba2\u6237\u7aef)\u7684\u8bbe\u5907\u6dfb\u52a0\u3001IO\u6620\u5c04\u3001\u901a\u8baf\u7b80\u5355\u5c55\u793a\u7b49\u65b9\u9762，\u672c\u6587\u8bb0\u5f55PC\u7aefC#\u5229\u7528NModbus4\u901a\u8baf\u5e93\u521b\u5efaModbus TCP Slave(\u670d\u52a1\u5668)\u7684\u65b9\u6cd5\u3002<\/p>\n

\u6ce8：\u672c\u6587\u53ea\u8bb0\u5f55\u5982\u4f55\u4f7f\u7528NModbus4\u7684\u90e8\u5206\u529f\u80fd，\u7a0b\u5e8f\u7ed3\u6784\u8f83\u4e3a\u7b80\u5355，\u5e76\u4e0d\u9002\u7528\u4e8e\u9879\u76ee\u5de5\u7a0b\u3002<\/p>\n

\u672c\u6587\u5206\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\u5206\u4eabNModbus4\u7684\u4f7f\u7528：<\/p>\n

1.\u6dfb\u52a0NModbus4\u5e93<\/p>\n

2.ModbusTcpSlave\u4ece\u7ad9\u7684\u521b\u5efa<\/p>\n

3.\u4e8b\u4ef6\u8ba2\u9605<\/p>\n

4.\u901a\u8baf\u793a\u4f8b<\/p>\n

\u754c\u9762\u9644\u52a0\u663e\u793a\u529f\u80fd：<\/p>\n

1.\u5728\u6536\u5230\u5ba2\u6237\u7aef\u62a5\u6587\u7684\u4e8b\u4ef6\u540e，\u5c06\u4f1a\u5728\u4fe1\u606f\u63d0\u793a\u6846\u4e2d\u663e\u793a\u62a5\u6587\u5185\u5bb9，\u62a5\u6587\u5185\u5bb9\u4e0d\u5305\u542bCRC；\u5728\u670d\u52a1\u5668\u5199\u5165\u5b8c\u6210\u540e，\u5c06\u4f1a\u5728\u4fe1\u606f\u63d0\u793a\u6846\u4e2d\u663e\u793a\u5199\u5165\u5b8c\u6210\u7684\u62a5\u6587\u5185\u5bb9\u3002<\/p>\n

2.\u5728\u670d\u52a1\u5668\u7ebf\u7a0b\u4e2d，\u83b7\u53d6\u5df2\u8fde\u63a5\u7684\u5ba2\u6237\u7aef\u7684IP\u5730\u5740\u4ee5\u53ca\u7aef\u53e3\u53f7\u4fe1\u606f，\u5e76\u5728\u6700\u5e95\u4e0b\u663e\u793a\u51fa\u6765\u3002<\/p>\n

\u8f6f\u4ef6\u754c\u9762\u5982\u4e0b，\u672c\u6587\u9488\u5bf9\u5de6\u4fa7\u670d\u52a1\u5668（\u4ece\u7ad9）\u7aef：<\/p>\n

\"\"<\/p>\n

1.\u6dfb\u52a0NModbus4\u5e93\u00a0<\/h2>\n

\u83dc\u5355\u680f\u70b9\u51fb\u3010\u5de5\u5177\u3011-\u300b\u3010NuGet\u5305\u7ba1\u7406\u5668\u3011-\u300b\u3010\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\u7684NuGet\u7a0b\u5e8f\u5305\u3011<\/p>\n

\"\"<\/h2>\n

\u5f39\u51fa\u4ee5\u4e0b\u753b\u9762，\u641c\u7d22\u3010NModbus4\u3011 ,\u9009\u62e9\u9700\u8981\u5b89\u88c5\u7684\u9879\u76ee，\u5e76\u70b9\u51fb\u53f3\u4e0b\u89d2\u7684\u3010\u5b89\u88c5\u3011\u5373\u53ef\u3002<\/p>\n

\"\"<\/p>\n

\u5728\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4ee3\u7801：<\/p>\n

using Modbus.Data;
\nusing Modbus.Device;
\nusing Modbus.Extensions.Enron; <\/p>\n

\u00a02.\u4f7f\u7528TcpListener\u521b\u5efa\u670d\u52a1\u5668<\/h2>\n

\u6838\u5fc3\u4ee3\u7801：<\/p>\n

listener = new TcpListener(IPAddress.Parse(textBox2.Text), Convert.ToInt32(textBox3.Text)); listener.Start(); slave = ModbusTcpSlave.CreateTcp(1, listener); slave.DataStore = DataStoreFactory.CreateDefaultDataStore();\u00a0<\/p>\n

slave.Listen();<\/p>\n

\u89e3\u6790：<\/p>\n

1.TcpListener，\u7528\u4e8e\u521b\u5efa\u670d\u52a1\u5668，\u9700\u8981\u8f93\u5165\u53c2\u6570\u5f85\u521b\u5efa\u670d\u52a1\u5668\u7684\u3010IP\u5730\u5740\u3011\u548c\u3010\u7aef\u53e3\u53f7\u3011\u3002<\/p>\n

2.ModbusTcpSlave.CreateTcp\u65b9\u6cd5，\u7528\u4e8e\u521b\u5efaModbusTCP Slave\u4ece\u7ad9，\u521b\u5efa\u540e\u7684\u4ece\u7ad9\u5bf9\u8c61\u4e3aslave\u3002<\/p>\n

3.DataStoreFactory.CreateDefaultDataStore()\u65b9\u6cd5，\u7528\u4e8e\u6e05\u9664Modbus TCP Slave\u7684\u6570\u636e\u5b58\u50a8\u533a，\u5bc4\u5b58\u5668\u533a\u503c\u5168\u90e8\u51990\u3002<\/p>\n

4.slave.Listen()\u65b9\u6cd5，Modbus TCP Slave\u5f00\u59cb\u76d1\u542c\u8bf7\u6c42，\u6211\u7684\u7406\u89e3\u662f\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u540e，Slave\u5f00\u59cb\u54cd\u5e94\u5ba2\u6237\u7aef\u7684\u62a5\u6587，\u6b64\u65b9\u6cd5\u5e94\u8be5\u653e\u5728\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u540e\u518d\u4f7f\u7528\u8f83\u597d，\u4f46\u5728\u6b64\u5904\u8c03\u7528\u4e5f\u80fd\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n

try
\n {
\n listener = new TcpListener(IPAddress.Parse(textBox2.Text), Convert.ToInt32(textBox3.Text));
\n listener.Start();
\n slave = ModbusTcpSlave.CreateTcp(1, listener);
\n slave.DataStore = DataStoreFactory.CreateDefaultDataStore();
\n WriteInfo("\u521b\u5efa\u670d\u52a1\u5668\u6210\u529f！" + "\u7ebf\u7a0bID：" + Thread.CurrentThread.ManagedThreadId + "\\\\r\\\\n");
\n \/\/\u8ba2\u9605\u6570\u636e\u5230\u8fbe\u4e8b\u4ef6，\u4e0d\u80fd\u83b7\u53d6\u5177\u4f53\u63a5\u6536\u5230\u7684\u62a5\u6587
\n \/\/slave.DataStore.DataStoreWrittenTo += DataStoreWrittenToHandle;
\n \/\/\u8ba2\u9605\u63a5\u6536\u5230\u62a5\u6587\u8bf7\u6c42\u4e8b\u4ef6，\u53ef\u4ee5\u6253\u5370\u63a5\u6536\u5230\u7684\u62a5\u6587
\n slave.ModbusSlaveRequestReceived += ModbusSlaveRequestReceivedHandle;
\n \/\/\u8ba2\u9605\u63a5\u6536\u5230\u5199\u5165\u5b8c\u6210\u4e8b\u4ef6，\u53ef\u4ee5\u6253\u5370\u5199\u5165\u5b8c\u6210\u54cd\u5e94
\n slave.WriteComplete += WriteCompleteHandle;
\n slave.Listen();
\n isServerCreated = true;
\n WriteInfo("\u670d\u52a1\u5668\u521b\u5efa\u6210\u529f！" + "\\\\r\\\\n");
\n count2 = 0;
\n }
\n catch(Exception ex)
\n {
\n count2++;
\n WriteInfo("\u521b\u5efa\u670d\u52a1\u5668\u5931\u8d25！" + "\u5931\u8d25\u6b21\u6570:"+count2.ToString()+ "\\\\r\\\\n");
\n isServerCreated = false;
\n creatServer= false;
\n return;
\n } <\/p>\n

3.\u4e8b\u4ef6\u8ba2\u9605<\/h2>\n

\u5206\u522b\u8bf4\u660e\u4ee5\u4e0b\u4e09\u4e2a\u4e8b\u4ef6\u7684\u529f\u80fd\u3002<\/p>\n

\/\/\u8ba2\u9605\u6570\u636e\u5230\u8fbe\u4e8b\u4ef6，\u4e0d\u80fd\u83b7\u53d6\u5177\u4f53\u63a5\u6536\u5230\u7684\u62a5\u6587 \/\/slave.DataStore.DataStoreWrittenTo += DataStoreWrittenToHandle; \/\/\u8ba2\u9605\u63a5\u6536\u5230\u62a5\u6587\u8bf7\u6c42\u4e8b\u4ef6，\u53ef\u4ee5\u6253\u5370\u63a5\u6536\u5230\u7684\u62a5\u6587 slave.ModbusSlaveRequestReceived += ModbusSlaveRequestReceivedHandle; \u00a0\/\/\u8ba2\u9605\u63a5\u6536\u5230\u5199\u5165\u5b8c\u6210\u4e8b\u4ef6，\u53ef\u4ee5\u6253\u5370\u5199\u5165\u5b8c\u6210\u54cd\u5e94 slave.WriteComplete += WriteCompleteHandle;<\/p>\n

1.DataStore.DataStoreWrittenTo\u4e8b\u4ef6:\u5f53DataStore\u901a\u8fc7Modbus\u547d\u4ee4\u88ab\u5199\u5165\u6570\u636e\u65f6\u89e6\u53d1\u3002<\/p>\n

2.ModbusSlaveRequestReceived\u4e8b\u4ef6:\u5f53Slave\u6536\u5230\u4e3b\u7ad9\u62a5\u6587\u65f6\u89e6\u53d1\u3002<\/p>\n

3.WriteComplete\u4e8b\u4ef6:\u5f53Slave\u63a5\u6536\u5230\u4e3b\u7ad9\u62a5\u6587，\u5e76\u5199\u5165\u5b8c\u6210\u540e\u89e6\u53d1\u3002<\/p>\n

\u672c\u4f8b\u4e3b\u8981\u4f7f\u7528\u540e\u9762\u3010ModbusSlaveRequestReceived\u4e8b\u4ef6\u3011\u548c\u3010WriteComplete\u4e8b\u4ef6\u3011\u3002<\/p>\n

ModbusSlaveRequestReceived\u4e8b\u4ef6\u89e6\u53d1\u65f6，\u8c03\u7528\u51fd\u6570\u5728\u63d0\u793a\u6846\u4e2d\u6253\u5370\u62a5\u6587\u4fe1\u606f，\u62a5\u6587\u4fe1\u606f\u8f6c\u6362\u621016\u8fdb\u5236\u663e\u793a\u3002<\/p>\n

private void ModbusSlaveRequestReceivedHandle(object obj, ModbusSlaveRequestEventArgs e)
\n {
\n string str = "";
\n foreach (var item in e.Message.MessageFrame)
\n {
\n str += item.ToString("x2").PadLeft(2, '0').ToUpper() + " ";
\n }
\n WriteInfo("\u670d\u52a1\u5668\u6536\u5230\u62a5\u6587: " + str + "\\\\r\\\\n");
\n } <\/p>\n

WriteComplete\u4e8b\u4ef6，\u8c03\u7528\u51fd\u6570\u5728\u63d0\u793a\u6846\u4e2d\u6253\u5370\u62a5\u6587\u4fe1\u606f，\u62a5\u6587\u4fe1\u606f\u8f6c\u6362\u621016\u8fdb\u5236\u663e\u793a\u3002<\/p>\n

private void WriteCompleteHandle(object sender, ModbusSlaveRequestEventArgs e)
\n {
\n string str = "";
\n foreach (var item in e.Message.MessageFrame)
\n {
\n str += item.ToString("x2").PadLeft(2, '0').ToUpper() + " ";
\n }
\n WriteInfo("\u670d\u52a1\u5668\u5199\u5165\u5b8c\u6210: " + str + "\\\\r\\\\n");
\n } <\/p>\n

4.\u901a\u8baf\u793a\u4f8b<\/h2>\n

\u5728\u670d\u52a1\u5668\u4fa7\u753b\u9762\u4e0a，\u8f93\u5165\u3010IP\u3011：127.0.0.1，\u3010Port\u3011：502，\u70b9\u51fb\u3010\u521b\u5efa\u670d\u52a1\u5668\u3011，\u53ef\u89c2\u5bdf\u5230\u4e0b\u65b9\u63d0\u793a\u6846\u4e2d\u663e\u793a\u3010\u521b\u5efa\u670d\u52a1\u5668\u6210\u529f\u3011\u3002<\/p>\n

\"\"<\/p>\n

\u6253\u5f00Modbus Poll\u8f6f\u4ef6，\u5728\u8fde\u63a5\u8bbe\u7f6e\u5728\u8fdc\u7aef\u670d\u52a1\u5668\u4fa7\u8f93\u5165\u3010IP\u5730\u5740\u3011\u548c\u3010\u7aef\u53e3\u53f7\u3011，\u70b9\u51fb\u786e\u8ba4\u8fde\u63a5\u3002<\/p>\n

\u8fde\u63a5\u6210\u529f\u540e，PC\u7aef\u8f6f\u4ef6\u63d0\u793a\u670d\u52a1\u5668\u6536\u5230\u62a5\u6587，\u62a5\u6587\u4fe1\u606f\u6ca1\u6709\u5305\u542bCRC\u5b57\u8282\u4fe1\u606f；Modbus Poll\u7aef\u8f6f\u4ef6\u663e\u793aTx=11，\u4e0d\u65ad\u589e\u52a0，\u8fd9\u662f\u7531\u4e8e\u9ed8\u8ba4\u4f7f\u7528\u4e8603\u529f\u80fd\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668，\u6570\u91cf\u957f\u5ea6\u4e3a20\u4e2a\u5b57，\u5e76\u5faa\u73af\u8bfb\u53d6\u3002<\/p>\n

\"\"<\/p>\n

Modbus Poll\u7684\u914d\u7f6e\u5982\u4e0b：\u00a0<\/p>\n

\"\"<\/p>\n

\u6839\u636ePC\u7aef\u8f6f\u4ef6\u5df2\u6709\u529f\u80fd，\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n

\u4ece\u7ad9（\u670d\u52a1\u5668）\u5199\u5165，Modbus Poll（\u4e3b\u7ad9\/\u5ba2\u6237\u7aef）\u8bfb\u53d6：<\/p>\n

\u3010Value\u3011\u8f93\u51652，\u70b9\u51fb\u3010\u51991~10\u3011，\u5c06\u5411\u4fdd\u6301\u5bc4\u5b58\u5668\u5730\u5740\u30101~10\u3011\u5199\u5165\u503c\u4e3aValue*\u5730\u5740\u503c，\u5982：\u5730\u57401=2；<\/p>\n

\u5730\u57402=4；<\/p>\n

\u5730\u57403=6；<\/p>\n

\u5730\u57404=8；<\/p>\n

\u4f9d\u6b21\u7c7b\u63a8…\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n

\"\"<\/p>\n

Modbus Poll（\u4e3b\u7ad9\/\u5ba2\u6237\u7aef）\u5199\u5165，\u4ece\u7ad9（\u670d\u52a1\u5668）\u8bfb\u53d6：<\/p>\n

Modbus Poll\u4f7f\u752803\u529f\u80fd\u7801\u5f80\u4fdd\u6301\u5bc4\u5b58\u5668\u5730\u574011，\u5199\u5165123\u3002\u00a0\u5de6\u4fa7\u8f6f\u4ef6\u63d0\u793a\u6846\u663e\u793a\u201c\u670d\u52a1\u5668\u6536\u5230\u62a5\u6587+\u6536\u5230\u62a5\u6587\u201d，\u6b64\u63d0\u793a\u662f\u7531\u3010ModbusSlaveRequestReceived\u4e8b\u4ef6\u3011\u89e6\u53d1\u540e\u53d1\u51fa；\u7136\u540e\u663e\u793a\u201c\u670d\u52a1\u5668\u5199\u5165\u5b8c\u6210+\u6536\u5230\u62a5\u6587\u201d，\u6b64\u63d0\u793a\u662f\u7531\u3010WriteComplete\u4e8b\u4ef6\u3011\u89e6\u53d1\u540e\u53d1\u51fa\u3002<\/p>\n

\"\"<\/p>\n

Modbus Poll\u4f7f\u752816\u529f\u80fd\u7801\u5f80\u4fdd\u6301\u5bc4\u5b58\u5668\u5730\u574011\u5f00\u59cb\u519910\u4e2a\u5bc4\u5b58\u5668，\u547d\u4ee4\u914d\u7f6e\u5982\u4e0b：<\/p>\n

\"\"<\/p>\n

\u89c2\u5bdf\u5de6\u4fa7\u8f6f\u4ef6\u63d0\u793a\u6846\u4fe1\u606f：<\/p>\n

\u62a5\u6587\u6570\u636e\u4e2d\u7684\u00a0 00 \u00a00B \u00a000 \u00a00C \u00a000 \u00a00D \u00a000 \u00a00E \u00a000 \u00a00F \u00a000 \u00a010 \u00a000 \u00a011 \u00a000 \u00a012 \u00a000 \u00a013 \u00a000 \u00a014<\/p>\n

\u8f6c\u6362\u621010\u8fdb\u5236\u4e3a11（00 0B），12(00 0C)，13，14，15，16，17，18，19，20\u3002<\/p>\n

\"\"<\/p>\n

\u81f3\u6b64，\u57fa\u672c\u901a\u8baf\u6d4b\u8bd5\u5b8c\u6210\u3002<\/p>\n

\u4e0b\u9762\u8865\u5145\u670d\u52a1\u5668\u7aef，\u5982\u4f55\u5bf9\u4fdd\u6301\u5bc4\u5b58\u5668\u8fdb\u884c\u8bfb\u5199，\u5176\u5b9e\u5f88\u7b80\u5355，\u5c31\u662f\u76f4\u63a5\u8bbf\u95eeslave.DataStore.HoldingRegisters[i]\u4e2d\u7684\u6570\u636e\u5373\u53ef\u3002<\/p>\n

\u5982\u4e0b\u4e3a\u5199\u5165\u4ee3\u7801：<\/p>\n

if (listener != null && slave!=null) {
\n for (int i = 1;i<11;i++)
\n {
\n slave.DataStore.HoldingRegisters[i] = (ushort)(numericUpDown2 .Value* i);
\n }
\n WriteInfo("\u670d\u52a1\u5668\u5199\u51651~10\u5b8c\u6210" + "\\\\r\\\\n");
\n } <\/p>\n

\u4ee5\u4e0b\u4e3a\u8bfb\u53d6\u4ee3\u7801：<\/p>\n

if(slave!=null)
\n {
\n string str = "";
\n for(int i=10;i<20;i++)
\n {
\n str += slave.DataStore.HoldingRegisters[i+1].ToString() + " ";
\n }
\n WriteInfo("\u8bfb\u53d6\u5bc4\u5b58\u5668(\u5730\u5740\u4e3a10~20):"+str +"\\\\r\\\\n");
\n } <\/p>\n","protected":false},"excerpt":{"rendered":"

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