FAQ

• About Topcon Positioning Systems
• About MAGNET Office, MAGNET Field and MAGNET Enterprise
• Operating System
• System Requirements
• CAD Platform
• How and Where to Purchase
• Upgrades to New Versions and Crossgrades to Different License Types or Modules
• License Options
• License Terms
• License Levels (Modules)
• Software Trials
• Support and Training Options

About Topcon Positioning Systems

Topcon Positioning Systems, headquartered in Livermore, California, develops precision positioning technology, software and workflow solutions for the construction, geomatics and agriculture markets. Its European headquarters are in Zoetermeer, Netherlands. Its parent company, Topcon Corporation, was founded in 1932 and is headquartered in Tokyo, Japan.

Click here to learn more about Topcon Positioning Systems

About MAGNET Office, MAGNET Field and MAGNET Enterprise

With the v2026.0 release, Topcon returned its office and field software to the MAGNET name. Topcon Office is now MAGNET Office, Topcon Field is now MAGNET Field and version numbers now follow the year (for example, MAGNET Office 2026.0). The products work together to move survey and construction data between the office, the field and machine control.

MAGNET Office (formerly Topcon Office) is CAD and design software for contractors and surveyors. It combines plans and survey data to build 3D digital terrain models for site survey, layout and machine control. Optional Site Prep and Survey modules add road and site design and finished survey CAD deliverables. Click here to learn more about MAGNET Office

MAGNET Field (formerly Topcon Field) is data collection software that turns a rugged tablet or compatible Android device into a field controller for Topcon GNSS receivers, robotic total stations, scanning robotic total stations and digital levels. It is used for land surveying, stakeout, construction layout, roadwork and utility mapping. Click here to learn more about MAGNET Field

MAGNET Enterprise (also called Topcon Enterprise) is a cloud service for sharing project data between office teams, field crews and machine operators. Files can be shared and converted for use in MAGNET Office, Sitelink3D and Autodesk or Bentley software. Click here for Topcon’s software eBook (PDF), which covers MAGNET Enterprise

Sitelink3D is a web-based service for managing, monitoring and supporting job sites. It syncs design data between the office, machines and field crews and offers remote view and control of connected machines. Click here to learn more about Sitelink3D

Not sure which products you need? See Which Topcon / MAGNET software do I need for the office? and Which Topcon / MAGNET software do I need in the field?

Operating System

As of October 8, 2026, these are the supported operating systems for the current releases:

• MAGNET Office 2026.0: Windows 10 and 11 (64-bit)
• MAGNET Field 2026.0: Windows tablets and compatible Android devices
• MAGNET Enterprise and Sitelink3D: Web-based services used through a web browser

System Requirements

System requirements change with each release. See our Topcon MAGNET Office system requirements FAQ for the current requirements.

CAD Platform

MAGNET Office is a standalone Windows program with its own drafting, design and surface modeling tools. It does not run on top of another CAD program. It imports and exports AutoCAD DWG and DXF files, and MAGNET Office 2026.0 added import of Revit (RVT) models.

If you also work in AutoCAD or Revit, Topcon Exchange for Autodesk adds a ribbon to those programs for creating Topcon machine control and survey files and sending them to the field through MAGNET Enterprise.

How and Where to Purchase

When purchasing Topcon software, you buy through Topcon’s network of authorized dealers and distribution partners. Pricing is subject to change without notice and varies by product, license term and selected modules.

To purchase Topcon software, please contact an authorized Topcon dealer.

Upgrades to New Versions and Crossgrades to Different License Types or Modules

New versions are included while your subscription or your Topcon Software Service Plan is current. Software downloads, activation and support resources are available through your myTopcon account.

Perpetual licenses include the first year of the Service Plan. After that, you renew the Service Plan each year to keep receiving new versions and support.

You can add the Site Prep or Survey module to MAGNET Office as your needs grow. To add modules or move between subscription and perpetual licensing, contact your Topcon dealer about your options.

To see what has changed in recent releases, see What are the recent improvements to Topcon’s MAGNET Field and Office software?

License Options

• Online Activation: MAGNET Office licenses are activated online, so you need an internet connection to activate the software.
• Check In / Check Out: Licenses managed through MAGNET Enterprise can be checked in and checked out so they can be moved between computers and shared across your team. Ask an authorized Topcon dealer how many seats you need and how offline use works for your licenses.

License Terms

• Perpetual License (Permanent License): A one-time purchase that includes the first year of the Topcon Software Service Plan for maintenance, updates and support, plus one year of MAGNET Enterprise. After the first year, the Service Plan is renewed annually for a fee.
• Subscription License: Includes the Service Plan, access to the latest features in each release and MAGNET Enterprise for the length of the subscription. Subscriptions are typically sold in 1- or 3-year terms, so check with an authorized Topcon dealer for current options.
• Sitelink3D (Service Points): Sitelink3D uses Topcon’s Service Point model. You add credit to your myTopcon account and points are used only when the service is in use.

License Levels (Modules)

MAGNET Office is sold as base software with optional modules:

• MAGNET Office: The base software for Sitelink3D and Enterprise connectivity, machine control and layout data prep and building 3D digital terrain models
• Site Prep Module: Adds road, site, corridor and resurfacing design, 2D PDF to 3D job files and takeoff and material quantities
• Survey Module: Adds finished survey CAD deliverables for property plots, subdivisions and land development and includes MAGNET Tools for processing and adjusting total station, GNSS and digital level data

Click here to learn more about MAGNET Office license levels (modules)

For help choosing a combination, see Which Topcon / MAGNET software do I need for the office?

Software Trials

To try the complete MAGNET Office or MAGNET Field software without limitation, Topcon dealers can provide a 30-day trial license.

If you would like help requesting a trial of this software, please contact an authorized Topcon dealer.

Support and Training Options

Topcon provides software downloads, documentation and support resources through myTopcon.

Click here for myTopcon support

MAGNET Office also has built-in help. Click the ? icon at the top right of a dialog or panel for context help, or use the AI chatbot added in MAGNET Office 2026.0 under Help > Chatbot.

For free and paid MAGNET Office training, see What training is available for Topcon / MAGNET Office?