Resource library
A searchable directory of free public resources for common BAS platforms and protocols. Type a platform, an error, or a topic (for example "MS/TP", "graphics", "Metasys", or "upgrade"). Then go directly to the source. We link to the content; we do not host it.
Niagara Community
The official Tridium hub: knowledge base, release notes, and peer Q&A for Niagara 4 and Niagara Edge. Go here first for known Niagara issues.
Tridium Niagara Knowledge Thread
A long community thread with Niagara tips, known problems, and field repairs from working technicians.
r/BuildingAutomation
An active subreddit where technicians discuss Tridium, Metasys, Schneider, and BACnet problems, graphics, and commissioning.
Industry Link Library
A large independent index of BAS vendors, tools, and resources. Maintained since 1999.
Tridium Documents Library
Official Niagara datasheets, white papers, and product documentation.
Ultimate Guide to Tridium N4
A free detailed guide to Niagara N4 architecture, stations, and engineering workflow.
Niagara 4 Help & Support Center
Free Niagara 4 how-tos, guides, and troubleshooting videos from a Tridium distributor.
Guide to the Niagara Framework
A plain-language overview of what Niagara is and how JACEs and Supervisors fit together.
Niagara Update Considerations
What to examine before a Niagara upgrade: compatibility and known module problems.
NiagaraMods Exchange
A community marketplace to browse and download Niagara 4 modules, PX graphics, wiresheet objects, and login themes.
BP Tech Center
A multi-vendor hub with 2,000+ downloads (drivers, docs, catalogs) and 300+ videos across Niagara, JCI FX, Honeywell, EasyIO, and Vykon.
OnesightTV (YouTube)
Free Niagara and BMS how-to videos.
Metasys Documentation (OpenBlue)
Public Metasys manuals, troubleshooting guides, and product bulletins via the Knowledge Exchange.
Metasys REST API
Open documentation for the Metasys REST API, for pulling data and integrations.
Building Automation Knowledge Base
Thousands of field-written articles for EcoStruxure Building Operation, Continuum, TAC, and Satchwell.
EcoStruxure Building Community
Peer Q&A and expert answers for EcoStruxure Building Operation and legacy Schneider systems.
Documentation Portal
Official ECLYPSE installation, configuration, and product documentation.
Developer Wiki & REST API
REST API reference and developer notes for reading, writing, and configuring ECLYPSE.
Delta ORCAview Reference
Community reference for Delta Controls ORCAview objects and configuration.
Complete Guide to enteliWEB
A third-party walkthrough of enteliWEB navigation, schedules, trends, and alarms.
Smart Information Delivery (SID)
Siemens' documentation portal for Desigo CC and APOGEE user and engineering guides.
KMC Support & Downloads
Product documentation, downloads, and support for KMC controllers.
KMC Video Library
The KMC library of product how-to and setup videos.
BACnet International
The industry body behind BACnet: standards, certification, and education.
BTL Product Listing
A searchable list of BTL-certified BACnet products. Use it to make sure of interoperability before you specify a product.
The BACnet Institute
Free online BACnet courses and a good FAQ for objects, services, and priorities.
BACnet & MS/TP Tech Notes
Clear BACnet and MS/TP explanations, with router and RS-485 troubleshooting notes.
BACnet Questions Answered
Practical answers on MS/TP chain length, broadcast traffic, and device discovery.
O&M Best Practices
A vendor-neutral government guide to the operation and maintenance of building systems. It has one page for each equipment type.
VAV Systems O&M
How VAV systems operate, with practical operation and maintenance data.
Air-Side Economizers O&M
Economizer components, common faults, and the maintenance that keeps free cooling in operation.
Modular Boiler Systems O&M
How modular boilers increase heating efficiency, and how to maintain them.
Unitary HVAC Equipment O&M
Preventive maintenance for packaged, rooftop, and split unitary equipment.
Variable Speed Drives O&M
How VFDs decrease the energy use of fans and pumps, and how to maintain them.
Ground Source Heat Pump O&M
The basics of geothermal heat pump operation and maintenance.
OpenBuildingControl (G36)
A free vendor-neutral implementation of the ASHRAE Guideline 36 sequences. Each sequence has a plain-language description and control diagrams.
Design Guides & Tools (G36)
Free design guides, tools, and research papers from the engineers who wrote much of Guideline 36.
Intro to Guideline 36 (Steve Taylor)
A free introduction to Guideline 36 from one of its primary authors.
ASHRAE Guideline 36
The standard for high-performance HVAC control sequences. This is the source document. A purchase is necessary.
AutomatedBuildings.com
An independent BAS magazine: industry trends, expert articles, and a large link library.
These resources are free and publicly available from third parties. bas.help links to them for convenience. bas.help does not host, own, or endorse their content. Some vendor portals need a free account or a partner login. If you find a broken link, or if you know a good resource that is not here, tell us.