Adding an Expression

Procedure

  1. Click the Add Expression pushbutton on the Output tab.

    The Expression Editor dialog box appears.

  2. In the lower screen area of the dialog box, select a tag in the Subscription Item field.

    The tag is then shown in the Expression field.

  3. Click OK.

    The expression editor is closed. The expression is displayed on the Output tab.

  4. If necessary, choose another data type for the expression. The data type is proposed from the subscription items that are used in the expression.
  5. If you have subscribed to more than one tag, you need to add a separate expression for each tag.
  6. Select the Name field and change the name of the expression as required.
  7. To change the expression, click the Expression field and then choose the Edit pushbutton.

    This opens the expression editor again.