From a work week
to a few hours.
Plexa is a new kind of workspace for designing building safety & communication systems — directly on your PDF plans. Drag a device, set addresses and routes, and get a complete installation dossier instantly.
Not just drawing software — a leap in time, manpower and cost
From a static PDF — to a smart engineering workspace
Plexa turns PDF plans into a living environment that bridges design and execution: plan, devices, addresses, routes, quantities and reports — all unified and in sync in one place, consistent across the whole project lifecycle.
Everything you need to design, price and execute
Work straight on PDF
No file conversion and no complex drawing tools — upload and work directly on the plan.
Drag & drop
Drag a device from the legend onto the plan. The legend adapts to every make and model.
Auto numbering & addressing
Every device is addressed automatically — consistent, with no typing mistakes.
Routes & RS485 comms
Build routes, addressed communication lines and junction boxes — drawn on the plan.
Bills of quantities & reports
Automatic quantity take-off per floor and project — for pricing, procurement and reports.
Instant dossier
When the drawing is done — as-made drawings, specs, one-line diagram and full docs in one click.
Four steps — from plan to dossier
Upload a PDF
Load the floor plan. Add files, floors and zones with no limit.
Drag devices
Drag devices from the legend, matched to the specific equipment on the project.
Addresses & routes
Automatic addressing, plus communication routes and connections by drag.
Dossier
Plexa instantly produces drawings, quantities, specs and diagrams — ready to hand off.
One project, every deliverable — from the same plan
The plan, the bill of quantities, the one-line diagram and the address register all stay in sync. Switch views below.
Drag devices straight onto the PDF. Addresses, routes and connections build as you place.
Quantities derived directly from the placed devices — always matching the drawing.
Generated from the same placed devices — addressed loop, branches and sounder lines, each in its own line style.
Every placed device, addressed automatically — exported as the project register.
Not only fire detection — every system a building needs
The legend adapts to every equipment type and manufacturer, and the platform supports multiple languages for international projects.
A whole project — unlimited floors, zones or files — synced to one central project.
Done drawing? It's all ready.
The moment the drawing is complete, Plexa automatically produces every project deliverable — no double entry and no re-drawing.
Questions, answered
No. Plexa works directly on your PDF plans — upload and start placing devices. There's no conversion step and no CAD file to manage.
Fire detection is fully live today. The legend and engine are built to extend to PA & voice evacuation, fireman phone, nurse call, CCTV, intrusion and other low-voltage systems.
Addressing is automatic and consistent as you place devices. The bill of quantities and one-line diagram derive from the same placed data, so they always match the drawing.
No. A project can hold unlimited floors, zones and files, all synced to one central project.
As-made drawings, an accurate bill of quantities, an address & device list, wiring drawings, a one-line diagram and technical specs — produced automatically when the drawing is done.
Pick the systems, capabilities and volumes that fit your work — we'll review and come back with a proposal and a live demo on your own plan.
See Plexa on your own project
Leave your details and we'll set up a live demo on a real project.
We'll work on a real drawing and walk the whole flow end to end.
The MG team supports you from matching through your first project.