mirror of
https://github.com/Pablo2048/modbus-rtu-master.git
synced 2025-10-31 08:22:43 +01:00
118 lines
4.3 KiB
HTML
118 lines
4.3 KiB
HTML
<!DOCTYPE html>
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<html lang="cs">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Modbus RTU Web App</title>
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<style>
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body {
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font-family: Arial, sans-serif;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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height: 100vh;
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}
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#register-value {
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font-size: 2em;
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margin-top: 20px;
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}
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#error-message {
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color: red;
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margin-top: 10px;
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}
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button, input, select {
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padding: 10px;
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margin: 5px;
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font-size: 1em;
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cursor: pointer;
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}
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label {
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margin-top: 10px;
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}
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</style>
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</head>
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<body>
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<h1>Modbus RTU Web Application</h1>
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<div>
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<label for="baudRate">Baud Rate:</label>
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<input type="number" id="baudRate" value="38400">
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<label for="dataBits">Data Bits:</label>
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<select id="dataBits">
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<option value="7">7</option>
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<option value="8" selected>8</option>
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</select>
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<label for="stopBits">Stop Bits:</label>
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<select id="stopBits">
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<option value="1" selected>1</option>
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<option value="2">2</option>
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</select>
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<label for="parity">Parity:</label>
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<select id="parity">
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<option value="none" selected>None</option>
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<option value="even">Even</option>
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<option value="odd">Odd</option>
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</select>
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<label for="timeout">Timeout (ms):</label>
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<input type="number" id="timeout" value="150">
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</div>
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<button id="connect-btn">Připojit k sériovému portu</button>
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<div id="register-value">Hodnota registru: <span id="value">N/A</span></div>
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<div id="error-message"></div>
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<script src="../src/modbus-rtu-master.js"></script>
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<script>
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let modbus;
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const connectButton = document.getElementById('connect-btn');
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const valueDisplay = document.getElementById('value');
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const errorDisplay = document.getElementById('error-message');
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let intervalId = null;
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// Funkce pro získání hodnot z formuláře
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function getConfig() {
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return {
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baudRate: parseInt(document.getElementById('baudRate').value),
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dataBits: parseInt(document.getElementById('dataBits').value),
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stopBits: parseInt(document.getElementById('stopBits').value),
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parity: document.getElementById('parity').value,
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timeout: parseInt(document.getElementById('timeout').value),
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};
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}
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// Funkce pro aktualizaci hodnoty registru každých 5 sekund
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async function updateRegisterValue() {
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try {
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// Čtení registru s adresou 0x0000 z zařízení s ID 0x19
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const values = await modbus.readInputRegisters(0x19, 0x0000, 3);
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if (values && values.length > 0) {
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// Zobrazí hodnotu prvního (a jediného) registru
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const registerValue = values[0];
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valueDisplay.textContent = registerValue;
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errorDisplay.textContent = ''; // Vymazat případné staré chyby
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} else {
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console.error('Neplatná odpověď:', values);
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valueDisplay.textContent = 'Error';
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errorDisplay.textContent = 'Invalid response received.';
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}
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} catch (error) {
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console.error('Chyba při čtení registru:', error);
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valueDisplay.textContent = 'Error';
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errorDisplay.textContent = error.message || 'Unknown error occurred.';
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}
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}
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// Připojení k sériovému portu a spuštění čtení
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connectButton.addEventListener('click', async () => {
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const config = getConfig();
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modbus = new ModbusRTUMaster(config);
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await modbus.connect();
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if (intervalId === null) {
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intervalId = setInterval(updateRegisterValue, 5000); // Každých 5 sekund
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}
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});
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</script>
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</body>
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</html>
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