The current procedure allows you to create fieldbus and profibus instruments from
scratch. If you already have such instruments, you can create new ones by duplicating
the existing instruments. In this case, the new fieldbus and profibus tags inherit
the source segments.
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Press F7 to open in the Domain Explorer.
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Expand the plant hierarchy to display the Instruments and Loops folders.
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Do one of the following:
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To create an instrument unassociated with a loop number, right-click the Instruments folder, and then Select New > Instrument.
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To create an instrument that is associated with a specific loop number, expand the Loops folder, right-click a loop, and then Select New > Instrument.
To create new fieldbus tag numbers from the Fieldbus Tag Numbers browser, right-click somewhere in the browser, and then Select New Fieldbus Tag. Continue as described below.
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On the New Tag Number dialog, from the Tag class list select one of the following:
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Foundation Fieldbus — an instrument that can be associated with a Foundation Fieldbus segment.
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Profibus DP — an instrument that can be associated with a Profibus DP segment.
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Profibus PA — an instrument that can be associated with a Profibus PA segment.
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Under Tag number, type the name of the new tag number, and then, Select OK.
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On the Select Instrument Type dialog, select the instrument type you want to associate with the current tag number, and then, Select OK.
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Select OK.
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If the tag number does not correspond to an existing loop name, Smart Instrumentation prompts you to enter a loop name based on the tag number you have entered. If the loop identifier already matches an existing loop, the software will automatically associate the new tag number with the loop.
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If the loop convention includes the loop function parameter, the prompt will always appear. In this case, you have to complete the loop number.
If a profile exists for the selected instrument type, any new tags for that instrument type will be created with the selected reference items. -
For DeltaV compatibility, you must select an instrument type that you associated with a DeltaV device type during the downloading process. To display the Associate Foundation Fieldbus Device Types with Instrument Type supporting table of associations that you built among DeltaV device types, instrument manufacturers, and Smart Instrumentation instrument types, see Associate Device Types for DCS Vendors.
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On the Loop Name dialog, do one of the following:
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Type the loop number that the new tag is associated with.
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Accept the displayed loop number.
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Select Cancel to create the tag number without a loop association. Note that if a loop with the same name exists, the tag number is automatically associated with it, without creating a new loop.
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Select OK to create the loop number.
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On the Loop Number Properties dialog, accept the loop number properties or modify them as you require and then Select OK.
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On the Tag Number Properties dialog, on the General tab, enter the tag number attributes that you require.
For DeltaV compatibility, make sure that the value that you select from the Manufacturer list is among the acceptable values for the instrument type that you selected for
the current tag. For details, see Crucial Fields for the DeltaV Interface.
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On the Fieldbus tab, to define the fieldbus properties for the new instrument, type the fieldbus tag name.
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Type the field device address if necessary.
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Type the device ID if necessary.
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If the new tag functions as a backup that takes over DCS functions in case of DCS failure in the current segment, select Backup link master.
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Type the manufacturer's fieldbus device revision number if necessary.
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If your DeltaV interface preferences are set for fieldbus mode, the Fieldbus device revision field is a list, from which you must select a revision.
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Smart Instrumentation uses the values that you enter below to validate fieldbus segments. For details, see Generate a Validation Report for One Segment.
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Type the DC current consumption of the current instrument, for example, 35 mA.
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Type the capacitance and the capacitance unit of measure, for example 5 pF.
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Type the minimum transmit level of the current instrument, for example, 2.5 volts.
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Type the operating voltage range, for example, 9 - 35 volts.
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To modify the function block association of the new instrument, in the Function blocks association group box, under Unassociated function blocks, select a function block that you want to associate with the instrument, and Select Associate.
If your DeltaV interface preferences are set for fieldbus mode, your selection of
manufacturer and of fieldbus device revision determine function block association
for the current tag.
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To change the number of copies of the function block, in the Associated function blocks data window, under Multiple, type the value.
This option is available only if you enabled it in the Function Blocks dialog.
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To set the execution time, under Execution Time, type the time value (in milliseconds).
This option is available only if you enabled it in the Function Blocks dialog.
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To enter power supply properties, see Enter Power Supply Data for Panels and Instrument Tags.
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Select OK.
If you are creating items that must be compatible with Emerson DeltaV, see Crucial Fields for the DeltaV Interface.