Define Instrument Tag Naming Conventions - Intergraph Smart Instrumentation - Training - Intergraph Process, Power & Marine Documentation

With the Domain Administration window open, do one of the following:

• Click .

• Click Activities > Naming Conventions to open the Naming Conventions dialog box.

Beside Plant hierarchy, click Browse and select the unit you created. The Plant hierarchy box should now display the hierarchy New Refinery/Crude Area/Crude Unit 1:

From the Convention list, select Instrument (Conventional).

Click ISA Standard.

According to the ISA standard, the instrument tag string can contain up to four different segments. Before each segment, you can add separator characters in the Separator column. Each segment has a starting character position and length.

Select the following segment categories and segments:

Enter separators before the second, third and fourth tag segments and modify the string lengths in the Length column as shown:

• The Sample field shows the changes in the tag structure as you make your naming convention definitions.

• The first segment in the sequence becomes the tag prefix. In the current naming convention, the unit number 101 will be the prefix of every instrument you create in the current unit.

• You can only change the tag convention for a unit as long as no instruments are defined for the unit.

Click Apply.