Add Loop Drawing Template Regions

Regions may be added to auto-generated Loop Drawing templates to control where symbols are placed when the loop diagram is generated from the template. Each region is associated with the type or types of area that a Loop Drawing may be divided into. These can represent physical locations, such as an area, room or skid, or functional systems or processes within the plant or facility.

The use of regions enables you to use the same template for control loops that use different numbers of insertion points.Without regions, when using a template with (for example) six insertion points, if a control loop is modelled that skips one or more of the points of connection, the software does not know to skip the unused insertion points. For example, if a control loop with only four insertion points is modelled, with insertion points 3 and 4 not used, the items that should be placed at insertion points 5 and 6 will instead be placed at points 3 and 4. A template with four insertion points would have to be used in this case.

When a Loop Drawing is generated using templates with regions, the software is then able to place symbols in the correct areas of the drawing. For example, the terminals for a DCS panel are placed in the DCS Room area on the drawing, as defined by the DCS Room region in the template. Similarly, symbols representing the connections into a Marshalling Panel will always be inserted in the Marshalling Room region, as defined by the Marshalling Room region in the template. Note that the boundaries are not visible on the Loop Drawings themselves, only on the templates.

Regions are defined on templates using boundary region symbols. Boundary region symbols can be created for any part of the Project Breakdown Structure, either physical or functional. This enables boundary regions to be set up both for the physical breakdown of a project, such as areas, rooms, zones and buildings, and for the plant functional breakdown, such as systems and processes.

For more information on how individual items are assigned to specific regions (for example an actual area, room etc. in the project) on a Loop Drawing, see Assign Regions to Items for Placement on Auto-Generated Loop Drawings.

In the following procedure, boundary regions for Field Areas, Marshalling Rooms and DCS Rooms are used. For information on creating boundaries for Loop Drawing regions, see Create Boundary Template.

Add Regions to Loop Drawing Templates

1. With the template displayed, select the required boundary symbol from the Setup Explorer, under Drawing Types and then the Loop Drawing General node:

   Note:
   In this example boundary symbols for Field Areas, DCS Rooms and Marshalling Rooms are used, but boundary symbols can be defined for any level of a physical or functional breakdown structure.

   

2. Place the boundary symbol on the template, using it to define the size and shape of the type of region in question:

   

3. If required, you can view and edit the attributes of the region boundaries using the Attributes window. For example:

   

4. Place any further region boundaries on the template as required. For example:

   

See Setup Explorer, Symbol Editor, Attributes and Project Breakdown Structure for further information.