Built-in cybersecurity is designed to help protect operational technology and close backdoors to IT networks. Hardware-rooted security measures extend from edge devices through cloud connectivity. Controllers provide comprehensive visibility and threat detection capabilities while maintaining operational continuity. Cybersecurity is built into the hardware design rather than added as an afterthought, helping provide foundational protection.
Controllers
Modernize your building controller infrastructure
Building controls and solutions that simplify integration while lowering lifecycle costs
Building controls and solutions that simplify integration while lowering lifecycle costs
A Unified Foundation for Scalable Building Controls
Today's building automation demands controllers that work across systems while adapting to future needs. Honeywell's controller portfolio provides a cybersecure foundation that simplifies integration, reduces lifecycle costs and enables portfolio-wide standardization. From the Honeywell Optimizer Suite with ISA/IEC 62443-4-2 SL2 certification to our other brands like Alerton, our building controls are designed to deliver broad I/O flexibility, native connectivity and scalable performance from single equipment loops to enterprise-wide deployments.
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ISA/IEC 62443-4-2 certified
Optimizer Advanced Controllers are ISA/IEC 62443-4-2 SL2 certified components,¹ helping support cyber security best practices. Built-in protection is designed to help close OT security gaps.
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Multiple controller families
Honeywell offers different controller families to address specific building automation needs.² From high-speed IP controllers to scalable VAV solutions, our portfolio provides flexibility to match controllers to application requirements.
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$9.5B in savings
Honeywell has guaranteed $9.5B in energy and operational cost savings via 3,400+ projects for customers around the world.³
https://buildings.honeywell.com/us/en/products/by-category/building-management/controllers/global-controllers/honeywell-optimizer-advanced-controller
https://buildings.honeywell.com/us/en/brands/our-brands/bms/what-we-do/controllers
https://buildings.honeywell.com/us/en/solutions/services/energy-solutions-group
Related Solutions
Explore complementary building controls and solutions that work with your controller infrastructure to deliver comprehensive automation capabilities.
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Customer Stories
Controller Deployments Delivering Measurable Outcomes
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Frequently Asked Questions About Building Controllers
Building controllers from Honeywell are designed to lower costs throughout their operational life. Optimizer Controllers feature easy installation that works even for less-experienced installers, helping reduce deployment expenses. Many of our building controllers allow you to add capabilities without rip-and-replace approaches, helping preserve infrastructure investments. Predictive maintenance capabilities can help identify issues before failures occur.
Yes. Honeywell controllers feature native BACnet Building Controller profiles and support open protocols for interoperability. Niagara framework integration provides both Ethernet and Serial connection options. The vendor-agnostic approach works with third-party equipment and legacy infrastructure. Controllers are designed to help maximize existing investments while adding new capabilities and maintaining flexibility as technology evolves.
Honeywell controllers are designed with native support for multiple protocols and open frameworks. Optimizer Advanced Controllers incorporate the Niagara framework, providing both Ethernet and Serial integration options while supporting native BACnet Building Controller profiles. Our vendor-agnostic approach works with third-party equipment from multiple manufacturers, helping simplify integration across mixed-protocol environments. Controllers communicate via open protocols including BACnet, and LONWORKS, enabling connection to devices across vendors. Organizations can standardize with Honeywell controllers while preserving investments in existing infrastructure, helping reduce migration risk and maintaining operational continuity during upgrades.
Flexible I/O modules help streamline both initial deployment and ongoing operations. I/O modules with flexible control across different applications reduce the need for custom configurations on each installation. Freely programmable architecture adapts to changing building needs, helping reduce the time and cost associated with system reconfiguration or replacement. Smart commissioning tools via Optimizer Supervisor and related apps help technicians configure and verify systems more efficiently, reduce engineering time during deployment and simplify maintenance when modifications are needed.
