{"id":82515,"date":"2026-07-25T10:09:35","date_gmt":"2026-07-25T02:09:35","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/82515.html"},"modified":"2026-07-25T10:09:35","modified_gmt":"2026-07-25T02:09:35","slug":"modbus-tcp%ef%bc%88%e4%b9%9f%e7%a7%b0%e4%b8%bamodbus-tcp-ip%ef%bc%89%e6%98%afmodbus%e5%8d%8f%e8%ae%ae%e5%ae%b6%e6%97%8f%e4%b8%ad%e5%9f%ba%e4%ba%8e%e4%bb%a5%e5%a4%aa%e7%bd%91%e7%9a%84%e5%8f%98%e4%bd%93","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/82515.html","title":{"rendered":"Modbus TCP\uff08\u4e5f\u79f0\u4e3aModbus TCP\/IP\uff09\u662fModbus\u534f\u8bae\u5bb6\u65cf\u4e2d\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u53d8\u4f53\uff0c\u5b83\u5c06\u7ecf\u5178\u7684Modbus\u5e94\u7528\u5c42\u534f\u8bae\u5c01\u88c5\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d\uff0c\u5b9e\u73b0\u53ef\u9760\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1"},"content":{"rendered":"<p>Modbus TCP&#xff08;\u4e5f\u79f0\u4e3aModbus TCP\/IP&#xff09;\u662fModbus\u534f\u8bae\u5bb6\u65cf\u4e2d\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u53d8\u4f53&#xff0c;\u5b83\u5c06\u7ecf\u5178\u7684Modbus\u5e94\u7528\u5c42\u534f\u8bae\u5c01\u88c5\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d&#xff0c;\u5b9e\u73b0\u53ef\u9760\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1\u3002\u76f8\u6bd4\u4f20\u7edf\u7684Modbus RTU&#xff08;\u57fa\u4e8e\u4e32\u53e3RS-232\/RS-485&#xff09;&#xff0c;Modbus TCP\u66f4\u9002\u5408\u73b0\u4ee3\u5de5\u4e1a\u7f51\u7edc\u3001\u8fdc\u7a0b\u76d1\u63a7\u3001SCADA\u7cfb\u7edf\u96c6\u6210&#xff0c;\u4ee5\u53ca\u652f\u6301\u591a\u5ba2\u6237\u7aef\u5e76\u53d1\u8bbf\u95ee\u7684\u573a\u666f\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u5bf9Modbus TCP\u534f\u8bae\u7684\u5168\u9762\u63a2\u7d22&#xff0c;\u5305\u62ec\u539f\u7406\u3001\u5e27\u7ed3\u6784\u3001\u4e0eRTU\u7684\u5bf9\u6bd4\u3001\u4f18\u7f3a\u70b9\u3001\u5178\u578b\u5e94\u7528&#xff0c;\u4ee5\u53caC#\u5b9e\u73b0\u793a\u4f8b&#xff08;\u5ef6\u7eed\u4e4b\u524d\u7684\u5de5\u63a7\u673a\u591a\u4e32\u53e3\u4e3b\u9898&#xff0c;\u4f46\u8f6c\u5411TCP&#xff09;\u3002<\/p>\n<h4>\u4e00\u3001Modbus TCP \u6838\u5fc3\u539f\u7406\u4e0e\u7279\u70b9<\/h4>\n<ul>\n<li>\u534f\u8bae\u5206\u5c42&#xff1a;Modbus TCP\u4f4d\u4e8e\u5e94\u7528\u5c42&#xff0c;\u8fd0\u884c\u5728TCP\u7aef\u53e3502\u4e0a&#xff08;\u9ed8\u8ba4&#xff09;\u3002\u5b83\u4f7f\u7528TCP\u7684\u53ef\u9760\u4f20\u8f93&#xff08;\u9762\u5411\u8fde\u63a5\u3001\u81ea\u52a8\u91cd\u4f20\u3001\u6d41\u91cf\u63a7\u5236&#xff09;&#xff0c;\u65e0\u9700\u50cfRTU\u90a3\u6837\u81ea\u5df1\u5b9e\u73b0CRC\u6821\u9a8c\u548c\u8d85\u65f6\u91cd\u4f20\u3002<\/li>\n<li>\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u6a21\u578b&#xff08;Client\/Server&#xff09;&#xff1a;\n<ul>\n<li>Client&#xff08;\u4e3b\u7ad9&#xff09;&#xff1a;\u53d1\u8d77\u8bf7\u6c42&#xff0c;\u5982PLC\u3001\u4e0a\u4f4d\u673a\u3001SCADA\u8f6f\u4ef6\u3002<\/li>\n<li>Server&#xff08;\u4ece\u7ad9&#xff09;&#xff1a;\u54cd\u5e94\u8bf7\u6c42&#xff0c;\u5982PLC\u3001\u53d8\u9891\u5668\u3001I\/O\u6a21\u5757\u3001\u4f20\u611f\u5668\u7f51\u5173\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u591a\u8fde\u63a5\u652f\u6301&#xff1a;\u4e0d\u50cfRTU\u7684\u5355\u4e3b\u591a\u4ece&#xff08;\u53ea\u6709\u4e00\u4e2a\u4e3b\u7ad9\u80fd\u53d1\u8d77\u8bf7\u6c42&#xff09;&#xff0c;Modbus TCP\u5141\u8bb8\u591a\u4e2aClient\u540c\u65f6\u8fde\u63a5\u540c\u4e00\u4e2aServer&#xff0c;Server\u9700\u652f\u6301\u5e76\u53d1\u5904\u7406\u3002<\/li>\n<li>\u65e0\u5730\u5740\u9650\u5236&#xff1a;RTU\u4ece\u7ad9\u5730\u57401-247&#xff0c;TCP\u4f7f\u7528IP\u5730\u5740 &#043; \u7aef\u53e3&#xff0c;\u7406\u8bba\u4e0a\u652f\u6301\u6d77\u91cf\u8bbe\u5907\u3002<\/li>\n<li>\u6570\u636e\u6a21\u578b&#xff1a;\u4e0eRTU\u4e00\u81f4&#xff0c;\u4f7f\u7528\u5bc4\u5b58\u5668&#xff08;Coils\u3001Discrete Inputs\u3001Holding Registers\u3001Input Registers&#xff09;\u3002<\/li>\n<\/ul>\n<h4>\u4e8c\u3001Modbus TCP \u4e0e Modbus RTU \u5173\u952e\u5bf9\u6bd4<\/h4>\n<table>\n<tr>\u65b9\u9762Modbus RTUModbus TCP<\/tr>\n<tbody>\n<tr>\n<td>\u7269\u7406\u5c42\/\u4f20\u8f93\u4ecb\u8d28<\/td>\n<td>RS-232 \/ RS-485&#xff08;\u4e32\u53e3&#xff09;<\/td>\n<td>\u4ee5\u592a\u7f51&#xff08;TCP\/IP&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u7f16\u7801\u65b9\u5f0f<\/td>\n<td>\u4e8c\u8fdb\u5236&#xff08;\u7d27\u51d1&#xff09;<\/td>\n<td>\u4e8c\u8fdb\u5236&#xff08;\u4e0eRTU\u76f8\u540c&#xff0c;\u4f46\u5c01\u88c5\u4e0d\u540c&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u5e27\u7ed3\u6784<\/td>\n<td>Slave ID &#043; PDU &#043; CRC<\/td>\n<td>MBAP Header (7\u5b57\u8282) &#043; PDU<\/td>\n<\/tr>\n<tr>\n<td>\u9519\u8bef\u6821\u9a8c<\/td>\n<td>CRC-16<\/td>\n<td>\u65e0&#xff08;\u4f9d\u8d56TCP\u6821\u9a8c\u548c&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u5927\u4ece\u7ad9\u6570<\/td>\n<td>247<\/td>\n<td>\u53d7IP\u7f51\u7edc\u9650\u5236&#xff0c;\u51e0\u4e4e\u65e0\u9650<\/td>\n<\/tr>\n<tr>\n<td>\u5e76\u53d1\u6027<\/td>\n<td>\u5355\u4e3b\u591a\u4ece&#xff08;\u4e3b\u7ad9\u8f6e\u8be2&#xff09;<\/td>\n<td>\u591a\u4e3b\u591a\u4ece&#xff08;\u591a\u5ba2\u6237\u7aef\u5e76\u53d1&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u901f\u5ea6<\/td>\n<td>\u901a\u5e389600~115200 bps<\/td>\n<td>10\/100\/1000 Mbps&#xff0c;\u5ef6\u8fdf\u66f4\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u8ddd\u79bb<\/td>\n<td>RS-485\u6700\u8fdc1200m<\/td>\n<td>\u4ee5\u592a\u7f51\u6807\u51c6\u8ddd\u79bb&#xff0c;\u6216\u901a\u8fc7\u5149\u7ea4\/\u8def\u7531\u5668\u65e0\u9650\u6269\u5c55<\/td>\n<\/tr>\n<tr>\n<td>\u6297\u5e72\u6270<\/td>\n<td>\u9700\u7ec8\u7aef\u7535\u963b\u3001\u5149\u7535\u9694\u79bb<\/td>\n<td>\u4f9d\u8d56\u7f51\u7edc\u8d28\u91cf&#xff0c;\u5de5\u4e1a\u4ee5\u592a\u7f51\u9700\u4ea4\u6362\u673a\u4f18\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u5e94\u7528\u573a\u666f<\/td>\n<td>\u73b0\u573a\u8bbe\u5907\u5bc6\u96c6\u3001\u6210\u672c\u654f\u611f\u3001\u4f4e\u901f<\/td>\n<td>\u96c6\u4e2d\u76d1\u63a7\u3001\u8fdc\u7a0b\u8bbf\u95ee\u3001\u4e0eIT\u7cfb\u7edf\u96c6\u6210<\/td>\n<\/tr>\n<tr>\n<td>\u5b89\u5168\u6027<\/td>\n<td>\u7269\u7406\u9694\u79bb&#xff0c;\u57fa\u672c\u65e0\u52a0\u5bc6<\/td>\n<td>\u66b4\u9732\u5728\u7f51\u7edc\u4e2d&#xff0c;\u6613\u53d7\u653b\u51fb&#xff08;\u5efa\u8bae\u52a0VPN\/\u9632\u706b\u5899&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Modbus TCP\u672c\u8d28\u4e0a\u662f\u201cModbus RTU\u53bb\u6389CRC &#043; \u524d\u9762\u52a07\u5b57\u8282MBAP\u5934\u201d&#xff0c;\u4f46\u53bb\u6389\u4e86Slave ID&#xff08;\u7528Unit Identifier\u66ff\u4ee3&#xff0c;\u53ef\u9009&#xff09;\u3002<\/p>\n<h4>\u4e09\u3001Modbus TCP \u5e27\u7ed3\u6784&#xff08;ADU&#xff09;<\/h4>\n<p>Modbus TCP\u7684\u5b8c\u6574\u5e94\u7528\u6570\u636e\u5355\u5143&#xff08;ADU&#xff09;\u7531\u4e24\u90e8\u5206\u7ec4\u6210&#xff1a;<\/p>\n<li>\n<p>MBAP Header&#xff08;Modbus Application Protocol Header&#xff0c;7\u5b57\u8282&#xff09;&#xff1a;<\/p>\n<ul>\n<li>Transaction Identifier&#xff08;2\u5b57\u8282&#xff09;&#xff1a;\u4e8b\u52a1ID&#xff0c;\u7528\u4e8e\u5339\u914d\u8bf7\u6c42-\u54cd\u5e94&#xff08;Client\u751f\u6210&#xff0c;Server\u56de\u4f20\u76f8\u540c\u503c&#xff09;\u3002<\/li>\n<li>Protocol Identifier&#xff08;2\u5b57\u8282&#xff09;&#xff1a;\u56fa\u5b9a\u4e3a0x0000&#xff08;\u8868\u793aModbus\u534f\u8bae&#xff09;\u3002<\/li>\n<li>Length&#xff08;2\u5b57\u8282&#xff09;&#xff1a;\u540e\u7eed\u5b57\u8282\u957f\u5ea6&#xff08;\u5305\u62ecUnit ID &#043; PDU&#xff09;\u3002<\/li>\n<li>Unit Identifier&#xff08;1\u5b57\u8282&#xff09;&#xff1a;\u4ece\u7ad9\u6807\u8bc6&#xff08;\u76f8\u5f53\u4e8eRTU\u7684Slave Address&#xff0c;\u901a\u5e381-247&#xff0c;\u7f51\u5173\u573a\u666f\u4e0b\u7528\u4e8e\u8def\u7531&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>PDU&#xff08;Protocol Data Unit&#xff09;&#xff1a;\u4e0eRTU\u5b8c\u5168\u76f8\u540c<\/p>\n<ul>\n<li>Function Code&#xff08;1\u5b57\u8282&#xff09;&#xff1a;\u59820x03&#xff08;\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668&#xff09;\u30010x06&#xff08;\u5199\u5355\u4e2a\u5bc4\u5b58\u5668&#xff09;\u30010x10&#xff08;\u5199\u591a\u4e2a\u5bc4\u5b58\u5668&#xff09;\u3002<\/li>\n<li>Data&#xff1a;\u5730\u5740\u3001\u6570\u91cf\u3001\u503c\u7b49\u3002<\/li>\n<li>&#xff08;\u65e0CRC&#xff09;<\/li>\n<\/ul>\n<\/li>\n<p>\u793a\u4f8b&#xff1a;\u8bfb\u53d6\u4ece\u7ad91\u7684\u4fdd\u6301\u5bc4\u5b58\u566840001-40003&#xff08;\u8d77\u59cb\u5730\u57400&#xff0c;\u6570\u91cf3&#xff09;<\/p>\n<ul>\n<li>\n<p>\u8bf7\u6c42 ADU&#xff08;\u5341\u516d\u8fdb\u5236&#xff09;&#xff1a;<\/p>\n<p>00 01  00 00  00 06  01  03  00 00  00 03<br \/>\n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2524 \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2524 \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2524  \u251c\u2500\u2524 \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524<br \/>\nTransaction  Protocol  Length  Unit  Function  Start Addr  Quantity<br \/>\nID&#061;0001      ID&#061;0000   6 bytes  ID&#061;01   Code&#061;03   0000      0003<\/p>\n<\/li>\n<li>\n<p>\u54cd\u5e94 ADU&#xff08;\u5047\u8bbe\u5bc4\u5b58\u5668\u503c0x1234, 0x5678, 0x9ABC&#xff09;&#xff1a;<\/p>\n<p>00 01  00 00  00 09  01  03  06  12 34  56 78  9A BC<br \/>\n&#8230;                               \u251c\u2500\u2524 \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524<br \/>\n                                  Byte Count&#061;6   \u5bc4\u5b58\u5668\u503c&#xff08;\u9ad8\u5b57\u8282\u5728\u524d&#xff09;<\/p>\n<\/li>\n<\/ul>\n<p>\u5f02\u5e38\u54cd\u5e94&#xff1a;Function Code &#043; 0x80&#xff0c;\u540e\u9762\u52a0\u5f02\u5e38\u7801&#xff08;01\u975e\u6cd5\u529f\u80fd\u300102\u975e\u6cd5\u5730\u5740\u7b49&#xff09;\u3002<\/p>\n<h4>\u56db\u3001\u5178\u578b\u529f\u80fd\u7801&#xff08;\u4e0eRTU\u76f8\u540c&#xff09;<\/h4>\n<ul>\n<li>0x01&#xff1a;\u8bfb\u7ebf\u5708&#xff08;Coils&#xff09;<\/li>\n<li>0x02&#xff1a;\u8bfb\u79bb\u6563\u8f93\u5165<\/li>\n<li>0x03&#xff1a;\u8bfb\u4fdd\u6301\u5bc4\u5b58\u5668&#xff08;\u6700\u5e38\u7528&#xff09;<\/li>\n<li>0x04&#xff1a;\u8bfb\u8f93\u5165\u5bc4\u5b58\u5668<\/li>\n<li>0x05&#xff1a;\u5199\u5355\u4e2a\u7ebf\u5708<\/li>\n<li>0x06&#xff1a;\u5199\u5355\u4e2a\u5bc4\u5b58\u5668<\/li>\n<li>0x0F&#xff1a;\u5199\u591a\u4e2a\u7ebf\u5708<\/li>\n<li>0x10&#xff1a;\u5199\u591a\u4e2a\u5bc4\u5b58\u5668<\/li>\n<\/ul>\n<h4>\u4e94\u3001C# \u4e2d\u5b9e\u73b0 Modbus TCP \u5ba2\u6237\u7aef&#xff08;.NET \u793a\u4f8b&#xff09;<\/h4>\n<p>\u4f7f\u7528\u5f00\u6e90\u5e93 NModbus&#xff08;NuGet: Install-Package NModbus&#xff09;\u662f\u6700\u63a8\u8350\u65b9\u5f0f&#xff0c;\u7b80\u5355\u53ef\u9760\u3002\u4ee5\u4e0b\u662f\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u7684\u5b8c\u6574\u793a\u4f8b&#xff08;\u9002\u7528\u4e8e\u5de5\u63a7\u673a\u4e0a\u4f4d\u673a&#xff09;&#xff1a;<\/p>\n<p><span class=\"token keyword\">using<\/span> <span class=\"token namespace\">System<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">System<span class=\"token punctuation\">.<\/span>Net<span class=\"token punctuation\">.<\/span>Sockets<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token namespace\">Modbus<span class=\"token punctuation\">.<\/span>Device<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ NModbus<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ModbusTcpClientExample<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">async<\/span> <span class=\"token return-type class-name\">Task<\/span> <span class=\"token function\">Main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">string<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/span> args<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> serverIp <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;192.168.1.100&#034;<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ PLC\/\u8bbe\u5907IP<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> port <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">502<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">byte<\/span><\/span> slaveId <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>                   <span class=\"token comment\">\/\/ Unit Identifier<\/span><\/p>\n<p>        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">using<\/span> <span class=\"token class-name\">TcpClient<\/span> client <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token constructor-invocation class-name\">TcpClient<\/span><span class=\"token punctuation\">(<\/span>serverIp<span class=\"token punctuation\">,<\/span> port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">using<\/span> <span class=\"token class-name\">ModbusIpMaster<\/span> master <span class=\"token operator\">&#061;<\/span> ModbusIpMaster<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateIp<\/span><span class=\"token punctuation\">(<\/span>client<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668&#xff1a;\u8d77\u59cb\u5730\u5740 0&#xff0c;\u6570\u91cf 10<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">ushort<\/span><\/span> startAddress <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">ushort<\/span><\/span> numberOfPoints <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\"><span class=\"token keyword\">ushort<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/span> registers <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> master<span class=\"token punctuation\">.<\/span><span class=\"token function\">ReadHoldingRegistersAsync<\/span><span class=\"token punctuation\">(<\/span>slaveId<span class=\"token punctuation\">,<\/span> startAddress<span class=\"token punctuation\">,<\/span> numberOfPoints<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            Console<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bfb\u53d6\u6210\u529f&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> registers<span class=\"token punctuation\">.<\/span>Length<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                Console<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u5bc4\u5b58\u5668 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">startAddress <span class=\"token operator\">&#043;<\/span> i<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">registers<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> (0x<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">registers<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><\/span><span class=\"token format-string\"><span class=\"token punctuation\">:<\/span>X4<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">)&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/ \u793a\u4f8b&#xff1a;\u5199\u5355\u4e2a\u5bc4\u5b58\u5668<\/span><br \/>\n            <span class=\"token keyword\">await<\/span> master<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteSingleRegisterAsync<\/span><span class=\"token punctuation\">(<\/span>slaveId<span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">12345<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            Console<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5199\u5bc4\u5b58\u5668 100 &#061; 12345 \u6210\u529f&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> ex<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            Console<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token interpolation-string\"><span class=\"token string\">$&#034;\u9519\u8bef: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">ex<span class=\"token punctuation\">.<\/span>Message<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u65e0\u5e93\u7eaf\u624b\u5199\u7248\u672c&#xff08;\u4ec5\u4f9b\u5b66\u4e60&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528 TcpClient \u8fde\u63a5\u7aef\u53e3502\u3002<\/li>\n<li>\u6784\u9020MBAP &#043; PDU\u5b57\u8282\u6570\u7ec4\u3002<\/li>\n<li>\u53d1\u9001\u540e\u8bfb\u53d6\u54cd\u5e94&#xff0c;\u5339\u914dTransaction ID\u3002<\/li>\n<\/ul>\n<h4>\u516d\u3001\u5de5\u4e1a\u573a\u666f\u9002\u914d\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h4>\n<ul>\n<li>\u4f18\u52bf&#xff1a;\u9ad8\u901f\u3001\u6613\u96c6\u6210&#xff08;\u652f\u6301\u4e91\u7aef\u3001MES\u3001OPC UA\u6865\u63a5&#xff09;\u3001\u591a\u5ba2\u6237\u7aef\u5e76\u53d1\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u65e0\u5185\u7f6e\u52a0\u5bc6&#xff08;\u751f\u4ea7\u73af\u5883\u5efa\u8baeVPN\u6216\u4e13\u7528\u5de5\u4e1a\u9632\u706b\u5899&#xff09;\u3001\u7f51\u7edc\u6296\u52a8\u53ef\u80fd\u5f71\u54cd\u5b9e\u65f6\u6027\u3002<\/li>\n<li>\u5e38\u89c1\u8bbe\u5907&#xff1a;Siemens S7-1200\/1500&#xff08;\u652f\u6301&#xff09;\u3001Schneider PLC\u3001\u4e3b\u6d41IO\u6a21\u5757\u3001\u53d8\u9891\u5668\u3001\u4eea\u8868\u3002<\/li>\n<li>\u4f18\u5316\u5efa\u8bae&#xff1a;\n<ul>\n<li>\u4f7f\u7528\u8fde\u63a5\u6c60\u6216\u957f\u8fde\u63a5\u51cf\u5c11\u63e1\u624b\u5f00\u9500\u3002<\/li>\n<li>\u5b9e\u73b0\u5fc3\u8df3&#xff08;\u5468\u671f\u8bfb\u5bc4\u5b58\u5668&#xff09;\u68c0\u6d4b\u65ad\u7ebf\u3002<\/li>\n<li>\u5f02\u5e38\u91cd\u8fde &#043; \u91cd\u8bd5\u673a\u5236\u3002<\/li>\n<li>\u5728\u4f4e\u914d\u5de5\u63a7\u673a\u4e0a&#xff0c;NModbus\u5f02\u6b65API\u53ef\u5c06CPU\u5360\u7528\u63a7\u5236\u5728\u5f88\u4f4e\u6c34\u5e73\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Modbus TCP \u662f\u5de5\u4e1a\u4ee5\u592a\u7f51\u65f6\u4ee3\u7684\u4e3b\u6d41\u9009\u62e9&#xff0c;\u5c24\u5176\u9002\u5408\u4ece\u4e32\u53e3\u5411\u7f51\u7edc\u5347\u7ea7\u7684\u9879\u76ee\u3002\u5982\u679c\u60a8\u60f3\u6df1\u5165\u67d0\u4e2a\u90e8\u5206&#xff08;\u5982\u670d\u52a1\u5668\u5b9e\u73b0\u3001\u5f02\u5e38\u5904\u7406\u3001\u4e0eModbus RTU\u7f51\u5173\u7ed3\u5408&#xff09;&#xff0c;\u6216\u9700\u8981\u66f4\u590d\u6742\u7684C#\u793a\u4f8b&#xff08;\u591a\u8bbe\u5907\u5e76\u53d1\u3001\u6570\u636e\u89e3\u6790&#xff09;&#xff0c;\u53ef\u4ee5\u7ee7\u7eed\u6307\u5b9a&#xff01;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Modbus TCP&#xff08;\u4e5f\u79f0\u4e3aModbus TCP\/IP&#xff09;\u662fModbus\u534f\u8bae\u5bb6\u65cf\u4e2d\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u53d8\u4f53&#xff0c;\u5b83\u5c06\u7ecf\u5178\u7684Modbus\u5e94\u7528\u5c42\u534f\u8bae\u5c01\u88c5\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d&#xff0c;\u5b9e\u73b0\u53ef\u9760\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1\u3002\u76f8\u6bd4\u4f20\u7edf\u7684Modbus RTU&#xff08;\u57fa\u4e8e\u4e32\u53e3RS-232\/RS-485&#xff09;&#xff0c;Modbus TCP\u66f4\u9002\u5408\u73b0\u4ee3\u5de5\u4e1a\u7f51\u7edc\u3001\u8fdc\u7a0b\u76d1\u63a7\u3001SCADA\u7cfb\u7edf\u96c6\u6210&#xff0c;\u4ee5\u53ca\u652f\u6301\u591a\u5ba2\u6237\u7aef\u5e76\u53d1\u8bbf\u95ee\u7684\u573a\u666f\u3002<br \/>\n\u4ee5\u4e0b\u662f<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[205,43,78],"topic":[],"class_list":["post-82515","post","type-post","status-publish","format-standard","hentry","category-server","tag-tcp-ip","tag-43","tag-78"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Modbus TCP\uff08\u4e5f\u79f0\u4e3aModbus TCP\/IP\uff09\u662fModbus\u534f\u8bae\u5bb6\u65cf\u4e2d\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u53d8\u4f53\uff0c\u5b83\u5c06\u7ecf\u5178\u7684Modbus\u5e94\u7528\u5c42\u534f\u8bae\u5c01\u88c5\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d\uff0c\u5b9e\u73b0\u53ef\u9760\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/82515.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Modbus TCP\uff08\u4e5f\u79f0\u4e3aModbus TCP\/IP\uff09\u662fModbus\u534f\u8bae\u5bb6\u65cf\u4e2d\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u53d8\u4f53\uff0c\u5b83\u5c06\u7ecf\u5178\u7684Modbus\u5e94\u7528\u5c42\u534f\u8bae\u5c01\u88c5\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d\uff0c\u5b9e\u73b0\u53ef\u9760\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Modbus TCP&#xff08;\u4e5f\u79f0\u4e3aModbus TCP\/IP&#xff09;\u662fModbus\u534f\u8bae\u5bb6\u65cf\u4e2d\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u53d8\u4f53&#xff0c;\u5b83\u5c06\u7ecf\u5178\u7684Modbus\u5e94\u7528\u5c42\u534f\u8bae\u5c01\u88c5\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d&#xff0c;\u5b9e\u73b0\u53ef\u9760\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1\u3002\u76f8\u6bd4\u4f20\u7edf\u7684Modbus RTU&#xff08;\u57fa\u4e8e\u4e32\u53e3RS-232\/RS-485&#xff09;&#xff0c;Modbus TCP\u66f4\u9002\u5408\u73b0\u4ee3\u5de5\u4e1a\u7f51\u7edc\u3001\u8fdc\u7a0b\u76d1\u63a7\u3001SCADA\u7cfb\u7edf\u96c6\u6210&#xff0c;\u4ee5\u53ca\u652f\u6301\u591a\u5ba2\u6237\u7aef\u5e76\u53d1\u8bbf\u95ee\u7684\u573a\u666f\u3002 \u4ee5\u4e0b\u662f\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/82515.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-25T02:09:35+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/82515.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/82515.html\",\"name\":\"Modbus TCP\uff08\u4e5f\u79f0\u4e3aModbus TCP\/IP\uff09\u662fModbus\u534f\u8bae\u5bb6\u65cf\u4e2d\u57fa\u4e8e\u4ee5\u592a\u7f51\u7684\u53d8\u4f53\uff0c\u5b83\u5c06\u7ecf\u5178\u7684Modbus\u5e94\u7528\u5c42\u534f\u8bae\u5c01\u88c5\u5728TCP\/IP\u534f\u8bae\u6808\u4e2d\uff0c\u5b9e\u73b0\u53ef\u9760\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1 - 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