Label Breaks and Inline Breaks

The procedure can be used to label breaks (at the ends of pipes) and inline (spec) breaks (within a pipe run). The procedure labelling both types of break is the same.

When a break symbol is created, it may be configured so that it is automatically labelled with pipe properties when a instance of it is inserted, refer to Symbol Editor. For break symbols not configured in this way, labels must be placed "manually" by the user.

Note: The project can be set up so that spec breaks result in a pipe being automatically split into two pipes if specific pipe properties are different on either side of the break.

Example

Associated Project Configuration Options

The pipe properties that may cause pipes to be automatically split at a spec break are selected in the Project Definable Fields section of the Pipes - Labels Sub-Category of the AVEVA P&ID Project Administration program.

Procedure

Label Breaks

Break symbols may be configured so that they are automatically labelled with pipe properties on insertion.

For break symbols not configured in this way, labels must be placed "manually" by the user.

1. Start the procedure by either:

   • selecting the break label (not the symbol) on The Drawing Page, then selecting Properties from the shortcut menu, or

   • selecting the Properties option in the Properties group of the Home tab

     Note: Labels can also be viewed using the Non-Modal Properties Dialog, but tags cannot be directly entered into this dialog. Other details can be entered or changed however, and the drawing labelled with them.

2. If the first method of starting the procedure is followed, the AVEVA P&ID Specification Break Properties dialog for the symbol is then displayed.

   If the other method is followed, the Command prompt will display:

   Select Item to Label, or Label to Modify:

   Pick the break symbol (not the label) to be modified.

3. The AVEVA P&ID Specification Break Properties dialog is displayed.

   

4. The dialog will display the current properties of the pipe into which the break has been inserted. Change the upstream and/or downstream values as required. Press OK.

5. The Command Prompt will then display:

   Position upstream label for Break:

   Position the upstream value of the inline break, for example, the upstream specification value.

6. The Command Prompt will then display:

   Position downstream label for Break:

   Position the downstream value of the inline break.

7. If the inline break is a break of more than one property, the user will first be prompted to place the upstream and downstream values of each of the properties that change at the break point.

   The user will not be prompted to place labels for properties with the same upstream and downstream values.

   The command then ends automatically.

Edit Breaks

Break labels may be edited by editing the pipe labels on either side on the break. The appropriate break labels are then updated automatically. For example, updating the upstream pipe label will cause the upstream break label to be updated accordingly.

If a break is positioned between a pipe and an equipment nozzle, editing the trim label of that equipment will result in the break label being updated on the equipment side of the break.

Breaks can also be edited using the AVEVA P&ID Specification Break Properties dialog.