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You can add the OPC - server elements of the Data Access standard to the map in three ways (possibly can be done at the same time):

• As as an icon of state (1).,
• As as an icon of state and indicator (3).,
• In in the text form (value of an element, 2).

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Using any object on the map, you can change the value of the corresponding element in one of the following methods:

Method 1

1. Open Right-click to open the context menu by clicking the right mouse button and select the the Change value item.
   
2. From the Command drop-down list, select one of the previously created commands (see Configuring the command to set value to an element) or the Custom value item that allows specifying any element value in the corresponding Value field.
   
   
3. To accept command of changing the element value, click the Proceed button.

Method 2

1. Open Right-click to open the context menu by clicking the right mouse button and select the Execute item.
   A window for selecting from the list of the previously created commands will open (see Configuring the command to set value to an element).
2. Select the required command to execute.

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If the element value falls under more than one of its states (see Configuring the rule of changing the element state), then its state icon will change running through all states, and when you click on it, smaller icons of all element states are displayed. 

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