In this procedure, you will add a control valve FV tag to loop 101-F-100.
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Select loop 101-F-100 from the Loops folder dialog box, right-click and from the drop down menu select New > Instrument..
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In the New Tag Number dialog box, type tag number 101-FV-100 (using the Tab key to ensure that the number of spaces is correct) and click OK.
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On the Tag Number Properties dialog box, define the tag number as shown.
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Click OK.
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In the Domain Explorer, under Crude Unit 1, select the Instruments folder and on the Domain Explorer toolbar, click to refresh the display of items.