Exercise 11 ADP Drawings
17.7 Sheet Layout Options – A Worked Example
This form is used to define the Sheet Layout for the Drawing. The divisions of the Sheet Layout Options are explained in the following sections.
17.7.1 Size/Stacking
The Size/Stacking section of the Sheet Layout Options form contains the following:
The Drawing size of the plotted sheet produced by ISODRAFT can be set to an ISO (International Standards Organisation) A–size, to an American standard size, or to specified dimensions. The default size is A2. The selected paper size will be divided between the isometric area, the material list area, the title block area, the margins, and so on.
The Drawing size option button sets the sheet to a standard size or you can specify the sheet dimensions explicitly by entering the values in millimetres or inches into the Height and Width text boxes. For a non-standard size, the Drawing size option will be shown as User.
17.7.2 Graphics
The Graphics section of the Sheet Layout Options form contains the following:
The View direction option controls the isometric view direction.
The North arrow will always be at the top left hand corner of the drawing unless part of the isometric itself occupies this area, in which case the arrow will be moved automatically.www.aveva.com
Isometric type - This button controls the types of isometric plot produced:
o Combined (fab/erec) outputs a fully dimensioned and annotated isometric drawing with a detailed material list specifying all piping components, bolts etc.
o Fabrication outputs a similar format to the Combined format except that the following information, which is relevant only to the erector, is omitted:
- Plant coordinates.
- 'Connected to' and 'continued on' comments at pipeline ends.
- Attachment point details.
- The sequence numbers of valves and related items in the material list, hand-wheel spindles, flow arrows etc., unless relevant to a welded pipe assembly.
- Gasket and bolt item numbers in the material list.
- The erection materials list.
o Erection outputs a similar format to the combined format except that:
- All fabrication materials are omitted from the material list apart from loose flanges. Material list item numbers for fixed flanges are not listed, although full information is still included for any flanges which are to be left loose for onsite welding.
o Combined + fabrication produces a combined isometric and a fabrication isometric.
o Combined + erection produces a combined isometric and an erection isometric.
o Spool. This type of isometric is intended for the fabricator. A separate fabrication drawing is produced for each spool. Only fabrication information will appear. In-line components, including valves, will be omitted unless they are to be welded in to form an integral part of the spool assembly during shop fabrication.
o No Isometric plot. This option does not produce a plot file. Output filenames must be specified, e.g. for a Material List file, to obtain any output.
Backing sheets - It is possible to specify up to nine backing sheets. Set the Backing sheet directory option button on the Sheet Layout options form to Project or Company and then select the sheet filenames from the scrolling list.
Select the All off button to switch off all backing sheets.
Select Backing Sheet BlankA2.S1.plt
The above options will copy a typical Backing Sheet Plot File into <project>iso > UND folder typically:
C:\AVEVA\Plant\Projects12.1.SP2\Training\traiso\und
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Note: The Macro BlankA2.pmlmac was used to create the plot file and is not normally needed. Piping line thickness - The Piping line thickness specifies the line width drawn for pipe. The value must be between 1 and 10. The default is 3.
17.7.3 Specifications
The Specifications section of the Sheet Layout Options form contains the following:
Insulation / Tracing - Allows the Administrator to determine how the specifications are shown through the selection of Off, Tube Only or Tube + Components
17.7.4 Flow Arrows and Margins
The Flow Arrows and Margins section of the Sheet Layout Options form contains the following:
Margins - The Margins text boxes allow the Administrator to set different widths for each margin edge independently for each side of the drawing, i.e. the areas between the isometric frame borders and the sheet.
For example, a large bottom margin will allow space for information from an AutoCAD drawing frame.
Set the Margins Left, Right and Top to 18mm and the Bottom to 54mm.
Flow Arrows can be drawn inline at on components.
17.7.5 Reserved Areas
The Reserved Areas section of the Sheet Layout Options form contains the following:
Reserved area height – Drawing / Material List - The Reserved area height text boxes can be used to specify the height of an area at the bottom of the drawing area, or at the bottom of the Material List, which ISODRAFT is to leave blank. This reserved area is inside the bottom margin. You can use a reserved area to avoid overwriting pre-printed information on the sheet, or to allow for the addition of
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To create a reserved area for a drawing, enter the height of the area in the Drawing text box and to create a reserved area for a Material List, enter the height of the area in the Material List text box.
Both are measured from the top of the bottom margin.
The Isometric is produced as described before to show the new Backing Sheet and margin settings