The biggest difference between lines and components is that lines do not use symbols in order to be generated. Lines also use the Tag-format and Annotation functionality as discussed in earlier chapters (see image). These properties are used in a similar way as the properties of components, for instance, to set the size, the service, the material spec and the line number. When you select the "Primary Line" style, you will see that lines also have several properties (see image).
If you take a closer look at the nodes for the line types, you will recognize the different types of lines that are used on the tool palette as well. This is the same as is shown on the standard tool palette. Under the node for "Lines," there are two categories, Pipe Lines and Instrument Lines. The line type settings can be found in the "Engineering Items" node, just like all the other components (see image). To access these settings, we need enable the project properties, which as we know, can be found by right clicking the project name and selecting the Properties option. These settings will also be discussed later on in this chapter.ĭefault line settings First, we will take a look at the default settings for the line styles. Just like the Pipe Lines, the Instrument Lines also have settings that control the behavior of each line itself. Depending on the standard being used, these instrument lines include: Electric Signal Pneumatic Signal Hydraulic Signal Software Link Capillary Tube Instrument Supply Line Leader Electromagnetic Signal Mechanical Link These line types differ somewhat from the Pipe Lines, in that there are extra symbols in or on these lines when they are placed. These line types are specifically created for use with instruments. AutoCAD P&ID uses several line types called instrument lines to connect instruments. In our process and instrument diagram, there are also instruments that have to be connected. There are also several other settings that control the behavior of the line, which will be discussed later. These settings control the color, line style, and width of the line when plotted or printed. Primary Pipe Lines Secondary Pipe Lines Existing Primary Pipe Lines Existing Secondary Pipe Lines New Primary Pipe Lines New Secondary Pipe LinesĮach line type has specific settings that make the lines appear differently in your process and instrument diagram. There are several different types of Pipe Lines, depending on the standard being used (see image): Line Styles AutoCAD P&ID uses an element called Pipe Lines to connect components.
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