Method onStateChanged

app/src/IO/Drivers/Modbus.cpp:1341–1357

* @brief Handles Modbus device state changes by starting/stopping the poll timer. */

 * @brief Handles Modbus device state changes by starting/stopping the poll timer.
 */
void IO::Drivers::Modbus::onStateChanged(QModbusDevice::State state)
{
  if (!m_device)
    return;

  if (state == QModbusDevice::ConnectedState) {
    if (m_pollTimer && !m_pollTimer->isActive())
      m_pollTimer->start(m_pollInterval);
  }

  else if (state == QModbusDevice::UnconnectedState) {
    if (m_pollTimer)
      m_pollTimer->stop();
  }

  Q_EMIT configurationChanged();
}

/**
 * @brief Handles Modbus device errors by showing a message box.