6.9.3 Exercise
- Scott Fredericks (Unlicensed)
- Jessica Reyes (Unlicensed)
This section gives an illustrative example of using a string value object. Settings may differ depending on your project’s configuration. |
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Exercise: Showing a string value based on an analog value
In this example, a water tank will display its status using a string value object, which in turn changes based on an analog tag value. Strings may be defined and configured using the ‘String Editor’ tool.
※ Please refer to the String Editor section for more information.
a) Create a new analog tag and name it ‘VALUE’.
b) Go to [Tools] – [String Editor] to configure the contents of the string table. If you have not already done so, create a new group (0). Add the strings shown below to group 0.
When the ‘VALUE’ tag is equal to 0, “The water tank is empty.” will be displayed.
When the ‘VALUE’ tag is equal to 1, “The water has been stored in the tank.” will be displayed.
When the ‘VALUE’ tag is equal to 2, “The water tank is full.” will be displayed.
c) Select [Draw] – [String Value] and enter the tag name ‘VALUE’ in the ‘Tag’ field. Specify the string group as 0.
d) Select [Draw] – [Switch/Lamp] to create a word switch. Define the action as ‘Tag operation’ to increase the value of the ‘VALUE’ tag by 1 every time the switch is pressed.
e) Launch the project in Xpanel or the simulator. When you press the button, the tag value changes, causing a different string to be displayed.
No string will be displayed if there is no corresponding string with the analog tag’s value. In the example above, a string will only be displayed when ‘VALUE’ is equal to 0, 1, or 2. |