{"id":90263,"date":"2026-08-04T23:41:14","date_gmt":"2026-08-04T15:41:14","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/90263.html"},"modified":"2026-08-04T23:41:14","modified_gmt":"2026-08-04T15:41:14","slug":"%e6%b8%a9%e6%b9%bf%e5%ba%a6%e5%8f%98%e9%80%81%e5%99%a8485%e5%9e%8b%e9%80%9a%e8%bf%87%e5%8d%8e%e4%ba%91%e7%89%a9%e8%81%94%e7%9a%84%e4%b8%b2%e5%8f%a3%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%8e%a5%e5%85%a5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/90263.html","title":{"rendered":"\u6e29\u6e7f\u5ea6\u53d8\u9001\u5668(485\u578b)\u901a\u8fc7\u534e\u4e91\u7269\u8054\u7684\u4e32\u53e3\u670d\u52a1\u5668\u63a5\u5165\u6848\u4f8b RtuOverTcp"},"content":{"rendered":"

\u4f7f\u7528\u7684\u662f \u6ce5\u4eba\u6e29\u6e7f\u5ea6\u53d8\u9001\u5668(485\u578b)<\/p>\n

\u4e32\u53e3\u670d\u52a1\u5668\u6587\u6863：<\/p>\n

https:\/\/www.huayuniot.com\/product\/detail\/?id=48&parentLabel=&childLabel=%E4%B8%B2%E5%8F%A3%E6%9C%8D%E5%8A%A1%E5%99%A8<\/p>\n

https:\/\/webapi.huayuniot.com\/static\/upload\/file\/20241121\/1732175025768002.pdf<\/p>\n

\u4e32\u53e3\u670d\u52a1\u5668\u540e\u53f0：192.168.10.8<\/p>\n

admin<\/p>\n

admin<\/p>\n

\n

\n

\u4e00\u3001\u8c03\u6574\u672c\u673a\u9759\u6001ip \u8bbe\u4e3a\u540c\u4e00\u7f51\u6bb5<\/h3>\n

\u4e32\u53e3\u670d\u52a1\u5668\u9ed8\u8ba4\u4e3a 192.168.10.x \u7f51\u6bb5，\u7f51\u5173\u4e3a192.168.10.1\u3002\u9700\u6309\u4e0b\u56fe\u5c06\u7535\u8111\u6539\u4e3a\u540c\u7f51\u6bb5\u624d\u80fd\u8fde\u63a5\u5230\u4e32\u53e3\u670d\u52a1\u5668\u3002DNS: 114.114.114.114<\/p>\n

\u8fd9\u91cc\u4e32\u53e3\u670d\u52a1\u5668\u662f\u63a5\u5230\u8def\u7531\u5668\u4e0a\u4e86，\u7535\u8111\u8fd9\u91cc\u8fde\u4e0a\u8def\u7531\u5668WIFI，\u914d\u7f6e\u9759\u6001ip\u65f6\u914d\u7f6eWLAN\u7684\u7f51\u7edc\u8fde\u63a5\u5373\u53ef\u3002<\/p>\n

\u82e5\u7535\u8111\u63a5\u7684\u662f\u6709\u7ebf\u7f51\u53e3，\u5c31\u9700\u8981\u914d\u7f6e\u4ee5\u592a\u7f51\u7684\u9759\u6001ip\u3002<\/p>\n

\"\"<\/p>\n

\u80fdping\u901a\u5373\u53ef\u3002<\/p>\n

\"\"<\/p>\n

\n

\u4e5f\u53ef\u767b\u5f55\u7ba1\u7406\u540e\u53f0，\u5c06\u4e32\u53e3\u670d\u52a1\u5668\u9759\u6001ip\u6539\u4e00\u4e0b，\u6539\u6210\u9700\u8981\u7684\u7f51\u6bb5\u5373\u53ef，\u5982\u4e0b\u6240\u793a：\u6539\u4e3a\u5230192.168.1.x\u7f51\u6bb5\u3002<\/p>\n

\"\"<\/p>\n

\u6ce8\u610f：\u5982\u679c\u9700\u8981\u4f7f\u7528Modbus TCP\u534f\u8bae\u8bfb\u53d6\u7684\u8bdd，\u9700\u8981\u5f00\u542f\u4e32\u53e3\u670d\u52a1\u5668\u8bbe\u5907\u4e0a\u7aef\u53e31 \u5904\u9ad8\u7ea7\u9009\u9879\u7684modbus \u7f51\u5173\u529f\u80fd\u3010\u534f\u8bae\u8f6c\u6362:modbus rtu\/ascii\/tcp\u53cc\u5411\u8f6c\u6362\u3011<\/p>\n

\"\"<\/p>\n

\n

\u4e8c\u3001\u5ba2\u6237\u7aef\u5de5\u5177 \u5bf9\u63a5\u70b9\u4f4d\u6d4b\u8bd5\u3002 \u63a5\u5165\u5e73\u53f0<\/h3>\n

\u9700\u8981\u6ce8\u610f：<\/p>\n

(1)Modbus RTU\u548cModbus TCP \u62a5\u6587\u7684\u89c4\u8303\u4e0d\u4e00\u6837\u3002 <\/p>\n

(2)RTU\u7ecf\u8fc7dtu\u670d\u52a1\u5668\u8f6c\u4e3atcp\u4fe1\u53f7\u540e，\u867d\u7136\u652f\u6301tcp\u4f46\u662f\u672c\u8d28\u8fd8\u662fModbus RTU,\u6211\u4eec\u53d1\u9001\u7684\u62a5\u6587\u5fc5\u987b\u662fRTU\u89c4\u8303\u7684\u62a5\u6587\u6570\u636e\u3002 <\/p>\n

(3-1)\u53ea\u6709\u51fa\u5382\u5c31\u652f\u6301Modbus TCP\u534f\u8bae\u7684\u8bbe\u5907，\u624d\u80fd\u7528Modbus TCP\u5bf9\u63a5，\u53d1\u9001Modbus TCP\u89c4\u8303\u7684\u62a5\u6587\u6570\u636e\u3002<\/p>\n

(3-2)rtu\u8bbe\u5907\u5982\u679c\u9700\u8981\u4f7f\u7528Modbus TCP\u534f\u8bae\u8bfb\u53d6\u7684\u8bdd，\u9700\u8981\u5f00\u542f\u4e32\u53e3\u670d\u52a1\u5668\u8bbe\u5907\u4e0a\u7aef\u53e31 \u5904\u9ad8\u7ea7\u9009\u9879\u7684modbus \u7f51\u5173\u529f\u80fd\u3010\u534f\u8bae\u8f6c\u6362:modbus rtu\/ascii\/tcp\u53cc\u5411\u8f6c\u6362\u3011<\/p>\n

1\u4e2a\u5b57\u8282=2\u4e2a16\u8fdb\u5236\u5b57\u7b26<\/p>\n

\n

1.\u573a\u666f\u4e3a\u00a0RS485\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668(Modbus RTU)，\u901a\u8fc7\u4e32\u53e3\u670d\u52a1\u5668(192.168.1.8)，\u5c06485\u4fe1\u53f7 \u8f6c\u4e3atcp\u4fe1\u53f7, \u7136\u540e\u5e73\u53f0\u5c31\u53ef\u901a\u8fc7tcp\u5411\u4e32\u53e3\u670d\u52a1\u5668\u53d6\u6570\u636e\u3002<\/p>\n

\u4ee5TCP\u4f20\u8f93\u5411\u4e32\u53e3\u670d\u52a1\u5668(192.168.1.8)\u53d1\u9001RTU\u89c4\u8303\u7684\u62a5\u6587(16\u8fdb\u5236)：0x01, 0x03, 0x00 0x00, 0x00 0x02, 0xC4, 0x0B<\/p>\n

\u5373\u4ee5TCP\u4f20\u8f93 \u53d1\u9001Modbus RTU\u89c4\u8303\u7684\u62a5\u6587\u6570\u636e \u5230\u4e32\u53e3\u670d\u52a1\u5668(192.168.1.8)\u3002<\/p>\n

\u6ce8\u610f： \u6e29\u6e7f\u5ea6 \u4f20\u611f\u5668 \u662f \u5728\u5730\u5740 0 \u4f4d\u7f6e，\u653e\u4e86\u4fe9\u4e2ashort\u7c7b\u578b(2\u4e2a\u5bc4\u5b58\u5668)\u7684\u6570\u636e，\u4e00\u4e2a\u6e7f\u5ea62\u5b57\u8282\u3001\u4e00\u4e2a\u6e29\u5ea62\u5b57\u8282\u3002\u51714\u5b57\u8282\u3002<\/p>\n

\u6570\u636e\u5728\u4fdd\u6301\u5bc4\u5b58\u5668\u4e2d\u3002\u4fdd\u6301\u5bc4\u5b58\u5668：1\u4e2a\u5bc4\u5b58\u5668\u53602\u5b57\u8282\u3002<\/p>\n

\u53ef\u4ee5\u4e00\u6b21\u8bfb\u4fe9\u4e2a\u5bc4\u5b58\u5668：\u00a00x01, 0x03, 0x00 0x00, 0x00 0x02<\/span>, 0xC4, 0x0B\u00a0\u76f4\u63a5 \u4ece\u5730\u57400\u8bfb\u53d6 4\u5b57\u8282\u6570\u636e，\u7136\u540e \u6bcf\u6b21\u8bfb2\u4e2a\u5b57\u8282\u7684short\u89e3\u6790(\u76ee\u524d\u7269\u8054\u5e73\u53f0\u4e0d\u652f\u6301,float\u53602\u4e2a\u5bc4\u5b58\u56684\u5b57\u8282<\/span>)<\/p>\n

\u4e5f\u53ef\u4ee5\u5206\u4fe9\u6b21\u5404\u8bfb1\u4e2a\u5bc4\u5b58\u5668：0x01, 0x03, 0x00 0x00<\/span>, 0x00 0x0<\/span>1<\/span>, 0x84, 0x0A(\u8d77\u59cb0，\u8bfb1\u4e2a\u5bc4\u5b58\u5668：2\u5b57\u8282\u6e7f\u5ea6<\/span>) \u00a00x01, 0x03, 0x00 0x01<\/span>, 0x00 0x0<\/span>1<\/span>, 0xD5, 0xCA(\u8d77\u59cb1，\u8bfb1\u4e2a\u5bc4\u5b58\u5668：2\u5b57\u8282\u6e29\u5ea6<\/span>)<\/p>\n

(1)IoTClient.exe\u00a0\u5de5\u5177\u4e2d\u9700\u8981\u4f7f\u7528 ModbusRtu Over TCP\u5f62\u5f0f，\u53d1\u9001\u8bfb\u53d6\u62a5\u6587：<\/p>\n

\"\"<\/p>\n

(2)Java\u4e2d\u5b9e\u73b0 tcp\u53d1\u9001RTU\u89c4\u8303\u62a5\u6587\u6570\u636e：<\/p>\n

class ModbusTCPClient {
\n public static void main(String[] args) {
\n \/\/ \u521b\u5efa\u4e00\u4e2aTimer\u5b9e\u4f8b
\n Timer timer = new Timer();
\n timer.scheduleAtFixedRate(new TimerTask() {
\n @Override
\n public void run() {
\n System.out.println("\u5468\u671f\u6027\u4efb\u52a1\u6267\u884c\u4e86！\u5f53\u524d\u65f6\u95f4：" + System.currentTimeMillis());
\n reqProtocol();
\n }
\n }, 1000, 1000); \/\/ 1\u79d2\u540e\u5f00\u59cb，\u6bcf\u96941\u79d2\u6267\u884c\u4e00\u6b21
\n }<\/p>\n

public static void reqProtocol() {
\n \/\/ Modbus\u8bf7\u6c42\u53c2\u6570
\n String ipAddress = "192.168.1.8";
\n int port = 8010;
\n byte[] request = new byte[]{0x01, 0x03, 0x00, 0x00, 0x00, 0x02, (byte) 0xC4, 0x0B};
\n try (Socket socket = new Socket()) {
\n \/\/ \u8fde\u63a5\u5230\u76ee\u6807\u5730\u5740\u548c\u7aef\u53e3
\n socket.connect(new InetSocketAddress(ipAddress, port), 5000);
\n \/\/ \u83b7\u53d6\u8f93\u5165\u8f93\u51fa\u6d41
\n DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
\n DataInputStream dis = new DataInputStream(socket.getInputStream());
\n \/\/ \u53d1\u9001Modbus\u8bf7\u6c42
\n dos.write(request);
\n \/\/ \u63a5\u6536\u54cd\u5e94
\n byte[] response = new byte[256]; \/\/ \u5047\u8bbe\u54cd\u5e94\u957f\u5ea6\u4e0d\u8d85\u8fc7256\u5b57\u8282
\n int bytesRead = dis.read(response);
\n \/\/ \u6253\u5370\u54cd\u5e94\u6570\u636e
\n parseString(response);
\n } catch (IOException e) {
\n e.printStackTrace();
\n }
\n }<\/p>\n

public static void parseString(byte[] data) {
\n \/\/ hexData = "01 03 04 03 70 01 47 BA 0E";
\n \/\/ \u5c06\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4
\n \/\/ byte[] data = hexStringToByteArray(hexData);
\n \/\/ \u63d0\u53d6\u6570\u636e\u533a
\n \/\/ \u6570\u636e\u533a\u4ece\u7b2c3\u4e2a\u5b57\u8282\u5f00\u59cb，\u957f\u5ea6\u4e3a4\u4e2a\u5b57\u8282（\u6839\u636e\u534f\u8bae）
\n byte[] dataArea = new byte[4];
\n System.arraycopy(data, 3, dataArea, 0, 4);\/\/\u628a data \u6570\u7ec4\u4e2d\u4ece\u7d22\u5f15 3 \u5f00\u59cb\u7684\u8fde\u7eed 4 \u4e2a\u5b57\u8282，\u62f7\u8d1d\u5230 dataArea \u6570\u7ec4\u4e2d\u7d22\u5f15 0 \u5f00\u59cb\u7684\u4f4d\u7f6e<\/p>\n

\/\/ \u89e3\u6790\u6570\u636e\u533a
\n \/\/ \u5047\u8bbe\u6570\u636e\u533a\u7684\u683c\u5f0f\u4e3a：\u6e7f\u5ea6（2\u5b57\u8282）\u3001\u6e29\u5ea6（2\u5b57\u8282）
\n \/\/ \u6ce8\u610f：Modbus\u534f\u8bae\u4e2d\u6570\u636e\u901a\u5e38\u662f\u5927\u7aef\u5b57\u8282\u5e8f（\u9ad8\u5b57\u8282\u5728\u524d）
\n ByteBuffer buffer = ByteBuffer.wrap(dataArea);
\n buffer.order(ByteOrder.LITTLE_ENDIAN); \/\/ \u8bbe\u7f6e\u5b57\u8282\u5e8f\u4e3a\u5927\u7aef<\/p>\n

\/\/ \u8bfb\u53d6\u6e7f\u5ea6\u548c\u6e29\u5ea6\u503c
\n short humidityRaw = buffer.getShort(); \/\/ \u8bfb\u53d62\u5b57\u8282\u6e7f\u5ea6\u503c
\n short temperatureRaw = buffer.getShort(); \/\/ \u8bfb\u53d62\u5b57\u8282\u6e29\u5ea6\u503c<\/p>\n

\/\/ \u8f6c\u6362\u4e3a\u5b9e\u9645\u6570\u503c
\n float humidityValue = humidityRaw \/ 10.0f; \/\/ \u6e7f\u5ea6\u503c\u4e3a\u539f\u59cb\u503c\u9664\u4ee510
\n float temperatureValue = temperatureRaw \/ 10.0f; \/\/ \u6e29\u5ea6\u503c\u4e3a\u539f\u59cb\u503c\u9664\u4ee510<\/p>\n

\/\/ \u8f93\u51fa\u7ed3\u679c
\n System.out.println("\u6e7f\u5ea6: " + humidityValue + " %");
\n System.out.println("\u6e29\u5ea6: " + temperatureValue + " \u2103");
\n }<\/p>\n

\/\/ \u5c06\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4
\n public static byte[] hexStringToByteArray(String s) {
\n s = s.replace(" ", ""); \/\/ \u53bb\u6389\u7a7a\u683c
\n int len = s.length();
\n byte[] data = new byte[len \/ 2];
\n for (int i = 0; i < len; i += 2) {
\n data[i \/ 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
\n + Character.digit(s.charAt(i + 1), 16));
\n }
\n return data;
\n }
\n} <\/p>\n","protected":false},"excerpt":{"rendered":"

\u4f7f\u7528\u7684\u662f \u6ce5\u4eba\u6e29\u6e7f\u5ea6\u53d8\u9001\u5668(485\u578b)
\n\u4e32\u53e3\u670d\u52a1\u5668\u6587\u6863：
\nhttps:\/\/www.huayuniot.com\/product\/detail\/?id48&parentLabel&childLabel%E4%B8%B2%E5%8F%A3%E6%9C%8D%E5%8A%A1%E5%99%A8
\nhttps:\/\/webapi.huayuniot.com\/static\/upload\/file\/20241121\/1732175025768002.pdf
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