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In the Tag Number Properties dialog, select the HART tab.
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From the Analog signal parameter list, select an appropriate signal parameter.
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In the Virtual tags group box, select New.
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Select Yes in the prompt to save the changes to the tag properties.
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In the New Virtual HART Tag Number dialog, select a signal parameter, enter the tag number name.
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Select OK.
The signal parameter depends on whether the I/O type of the current HART instrument is HART AI or HART AO.