BAU Suite
BAU Suite
BAS Field Toolkitv4.9.1

Stop carrying five apps into the field

One workspace for BAS technicians and controls engineers. Projects, diagnostics, documentation, and terminal access — on site or in the office, with or without Wi-Fi.

19

Integrated tools

100%

Offline-capable

Free

To get started

Workflow

How it works in the field

A connected workflow that mirrors how a job actually runs — from project pin to customer handoff.

01

Load your project offline

Pin any project before heading to site. All files, device lists, IP plans, and notes are available without Wi-Fi or cellular.

02

Locate and scan devices

Find every controller, verify IP addresses and BACnet instances, check VLAN assignments, and detect duplicates automatically.

03

Access controllers directly

Open web panels, telnet into firmware, or decode register values — all without switching to a separate tool.

04

Run diagnostics

Tune PID loops, calculate psychrometric conditions, map network topology, and decode Modbus registers on the spot.

05

Document the findings

Attach terminal logs, screenshots, and field notes to the project. Write structured daily reports with full issue tracking.

06

Export to the customer

Send a formatted PDF report, push to Teams, or email via Outlook — all directly from inside the app.

Ecosystem

Every tool you need, built in

Purpose-built utilities for building automation fieldwork. No extra software, no tab-switching.

Manage & Document

Keep every project organized and every finding documented.

Projects

All your BAS project data in one place — contacts, tags, status, and a full activity history

Daily Reports

Structured field reports with issue tracking and one-click Teams / Outlook / PDF export

Documents

Upload panel databases, wiring diagrams, and controller backups — attached directly to the project

Field Notes

Capture punch items, fixes, and observations on the fly — categorized and searchable across projects

Share & Export

Send to Teams, Outlook, or PDF with audience presets — no reformatting required

Plan & Diagnose

The full diagnostic toolkit for BAS commissioning and service.

IP Plan

Never lose track of a device. Full IP addressing with VLAN, subnet, and duplicate detection

Device List

Track every controller — BACnet instance, IP, MAC, firmware version, and physical location

Network Diagrams

Build topology maps in minutes, not hours. Drag-and-drop with PNG / SVG export for submittals

Ping Tool

Know instantly which devices are reachable. HTTP and ICMP testing with port scanning and history

Register Tool

Decode any BACnet, Modbus, or LonWorks value — hex, IEEE 754, byte order, and addressing

PID Tuning

Stop guessing on loop parameters. Ziegler-Nichols and Cohen-Coon calculators with symptom diagnosis

Psychrometric

Calculate moist air properties for AHU commissioning — mixed air, coil loads, and comfort zones

Trend Viewer

Overlay BAS trend CSVs from any platform — detect stuck sensors and anomalies, then export clean reports

Access & Program

Connect directly to controllers and program from the field.

Telnet HMI

Direct terminal access to BAS controllers — session logging, multi-profile management, and ANSI rendering

Web Interface

Launch and manage controller web panels in embedded tabs — no browser switching required

PPCL Editor

Write, edit, and validate Carrier PPCL logic with syntax highlighting and project file management

Collaborate

Share projects and knowledge across your team in real time.

Global Projects

Multi-user shared projects with access codes, role-based permissions, and real-time activity tracking

Knowledge Base

A shared library of technical guides with markdown editing, threaded replies, and full-text search

Activity Tracking

Every change logged with before/after diffs, timestamps, and creator attribution

Platform

Everything a BAS technician carries — in one platform

BAU Suite consolidates the project data, diagnostic tools, and documentation workflows that field engineers reach for on every job.

Unified workspace

Projects, files, IP plans, device lists, notes, and diagnostics — all linked and searchable in one place.

Offline-first

Everything stored locally. Pin projects before heading to site, then work without Wi-Fi, VPN, or cellular.

Built-in diagnostics

Terminal, web panel viewer, ping, register decoder, PID tuner, and psychrometric calculator — no extra software needed.

Professional documentation

Structured daily reports, versioned file uploads, and one-click export to Teams, Outlook, and PDF with full audit trails.

Team collaboration

Global Projects with access codes, role-based permissions, real-time activity tracking, and a shared knowledge base.

Field-first

Made for site work

Designed around the real constraints of BAS commissioning, service, and troubleshooting.

One workspace, not a stack of tools

No more bouncing between spreadsheets, file shares, note apps, terminal emulators, and IP scanners.

Works without signal

Data lives on your device. Pin projects before you leave — no Wi-Fi, VPN, or hotspot required on site.

Built for field speed

Quick upload from any page, global Cmd+K search, and keyboard shortcuts across every project view.

Your data, your control

Device configs and project data stay local by default. Cloud sync is opt-in, never forced.

Available Now

Full network diagnostics
on Windows

Download the native desktop app for true ICMP ping, VPN and internal subnet access, and a focused workspace without browser limitations.

Mac & Linux users: the full web app works in any modern browser.

Native ICMP ping

True reachability — not just HTTP

Full network access

VPN & internal subnets

Desktop terminal

Native performance

Signed & auto-updating

Trusted installer

Plans & Pricing

Free to use.
Pro to sync.

All local features are free, forever. Upgrade to Pro for cloud sync and backup, or Team for real-time collaboration.

Active development
19+ field tools
Free local-first

Free

All local features, forever

$0

19+ tools Offline-first Desktop app
POPULAR

Pro

Sync across devices

$8/mo

30-day free trial

Multi-device sync Cloud backup Messaging

Team

Collaborate in real time

$15/mo

30-day free trial

Global Projects Knowledge Base Team messaging

Ready to simplify your fieldwork?

Create a free account in under a minute. Upgrade only when you need cloud sync or team collaboration.

No credit card required.

BAU Suite

The unified workspace for BAS technicians and controls engineers.

v4.9.1

Product

Account

Built for the field.Designed & developed by Caleb O'Hara