Loop diagrams hold significant importance as an essential deliverable in instrumentation design. They primarily serve construction contractors responsible for loop installation and wiring. These diagrams facilitate precise and straightforward tracking of each tag, while also maintaining a comprehensive activity log.

Traditionally, loop drawings were manually crafted using drafting software like AutoCAD. However, modern advancements have enabled the automatic generation of these diagrams through intelligent design database software.

The purpose of this particular deliverable in instrumentation design encompasses the following, although not limited to:

  1. Illustrating the path through which the control system acquires data from instruments and subsequently regulates output devices. A comprehensive depiction of the entire loop wiring is presented for each specific tag, regardless of whether it’s an open or closed loop system.
  2. Highlighting the additional components associated with the loop. For instance, certain loops might incorporate indicators for loop power, or certain instruments could feature supplementary displays.
  3. Precisely defining all point-to-point connections, cable particulars, and the locations where terminations occur.