Modbus Slave example

 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>SettingsDialog</class>
  <widget class="QDialog" name="SettingsDialog">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>239</width>
     <height>256</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Modbus Settings</string>
   </property>
   <layout class="QGridLayout" name="gridLayout">
    <item row="1" column="1">
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
      </property>
      <property name="sizeHint" stdset="0">
       <size>
        <width>20</width>
        <height>43</height>
       </size>
      </property>
     </spacer>
    </item>
    <item row="2" column="1">
     <widget class="QPushButton" name="applyButton">
      <property name="text">
       <string>Apply</string>
      </property>
     </widget>
    </item>
    <item row="0" column="0" colspan="2">
     <widget class="QGroupBox" name="groupBox">
      <property name="title">
       <string>Serial Parameters</string>
      </property>
      <layout class="QGridLayout" name="gridLayout_2">
       <item row="0" column="0">
        <widget class="QLabel" name="label_2">
         <property name="text">
          <string>Parity:</string>
         </property>
        </widget>
       </item>
       <item row="0" column="1">
        <widget class="QComboBox" name="parityCombo">
         <item>
          <property name="text">
           <string>No</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>Even</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>Odd</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>Space</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>Mark</string>
          </property>
         </item>
        </widget>
       </item>
       <item row="1" column="0">
        <widget class="QLabel" name="label_3">
         <property name="text">
          <string>Baud Rate:</string>
         </property>
        </widget>
       </item>
       <item row="1" column="1">
        <widget class="QComboBox" name="baudCombo">
         <item>
          <property name="text">
           <string>1200</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>2400</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>4800</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>9600</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>19200</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>38400</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>57600</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>115200</string>
          </property>
         </item>
        </widget>
       </item>
       <item row="2" column="0">
        <widget class="QLabel" name="label_4">
         <property name="text">
          <string>Data Bits:</string>
         </property>
        </widget>
       </item>
       <item row="2" column="1">
        <widget class="QComboBox" name="dataBitsCombo">
         <item>
          <property name="text">
           <string>5</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>6</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>7</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>8</string>
          </property>
         </item>
        </widget>
       </item>
       <item row="3" column="0">
        <widget class="QLabel" name="label_5">
         <property name="text">
          <string>Stop Bits:</string>
         </property>
        </widget>
       </item>
       <item row="3" column="1">
        <widget class="QComboBox" name="stopBitsCombo">
         <item>
          <property name="text">
           <string>1</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>3</string>
          </property>
         </item>
         <item>
          <property name="text">
           <string>2</string>
          </property>
         </item>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
   </layout>
  </widget>
  <resources/>
  <connections/>
 </ui>