Instrument Loops are functional definitions which have no physical component properties assigned to them. The Instrument Loop definitions deal with the operating and design conditions associated with the loop, such as material weights, operating function, design responsibility, etc.

Instrument Loops are created in the Standard Preferences dialog. When an instrument loop is created, the Properties dialog displays listing properties for the instrument loop.

Once a instrument loop has been created and is set as active in the Standard Preferences dialog, then every instrument placed while the loop is active becomes part of the loop. To assign instruments to a different loop either create a new loop or set an existing loop as active.

Select an Instrument Loop

To select an individual instrument which is part of a loop, you must click on the instrument twice. If you click on the instrument once, the entire loop will be selected. You can view this in the Element Info dialog, which will list all of the instruments and the instrument loop at the top of the dialog. Once you select the instrument a second time, then only that instrument's properties will display in the Element Info dialog.