CAD Loop Drawing Generation - Intergraph Smart Instrumentation - Help

Intergraph Smart Instrumentation Help

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English
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Intergraph Smart Instrumentation
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Smart Instrumentation Version
13.1

Smart Instrumentation allows you to generate loop drawings using external CAD applications. The same generation principles are valid for any of the listed CAD applications. The following CAD applications are supported:

  • Intergraph SmartSketch

  • AutoCAD

  • MicroStation

In the generation process, SmartSketch (.sym), AutoCAD (.dwg), or MicroStation (.dgn) type drawings are created from the selected loops.

Prerequisites

  • Before generating loop drawings, make sure that CAD application paths are set up correctly on the Preferences dialog box. For details, see CAD Settings for Smart Instrumentation.

    Smart Instrumentation and the CAD drawing programs required to work with Smart Instrumentation, must be installed on the same machine.

  • If you use SmartSketch, prior to starting the generation process, in the Preferences dialog box, you must select the check box Use macro symbol (&) to retrieve data because in SmartSketch all macros have the '&' prefix. If you clear the check box, the software displays only macro attributes in the drawings.

  • If you use AutoCAD, to ensure that the software displays macro captions, under the Loop Drawings > Custom node of the Preferences dialog box, in the Parameter box, type TagAsMacroName and in the Value field, type Y.

Basic Principles of CAD Loop Drawing Generation

The following diagram illustrates a (schematic) flow control loop. The loop drawing includes five drawing blocks for the following components: monitoring system, control valve, each set of wiring connections to the DCS, and the DCS itself. The wiring routing and control systems are conceptually the same for both tags (but with different data), so in this example, the blocks for these items are identical.

PPM All Outputs Graphic

Tag A is a monitoring system consisting of a flow transmitter and flow element.

Tag B consists of a control valve with an I/P transducer.

Smart Instrumentation may encounter some difficulty in opening CAD blocks created in AutoCAD versions 2009, 2010, and 2011. To fix this problem, open the blocks in AutoCAD and use the Purge command, then retry opening them in Smart Instrumentation. For more information consult the AutoCAD help.