CAD Control Point Statistics Assistant

What problem it solves

In building automation, HVAC, and low-voltage design work, engineers often have to count AI, AO, DI, and DO control points from drawings, then assemble IO tables, device lists, and budget summaries. Manual counting is slow and easy to miss when point labels are scattered across text, blocks, and notes.

How it works

The skill reads DXF content, including TEXT, MTEXT, and block attributes INSERT+ATTRIB, then identifies point numbers and device numbers from readable labels. It classifies entries by type, signal category, and IO direction. In addition to analog and digital points, v1.1.0 also recognizes PI and CTRL entries, which helps mixed fire-protection and building-control drawings. It produces three outputs:
- Point table: point number, type, signal category, IO direction, quantity, description, related device, layer, and source space
- Device list: device number, device type, related point count, and related points
- Summary: total point count by point type

Boundaries and caveats

• It does not read DWG directly; convert the drawing to DXF first, supporting R12 through R2018
• Recognition depends on text or block attributes; purely graphical symbols without readable labels cannot be counted
• Descriptions are taken from same-line or nearby text; increase the search radius if labels and notes are far apart
• Custom signal codes or device prefixes can be added through TYPE_MAP and DEVICE_PREFIXES