OptiFlex™ BACnet Building Controller

BMS & Control Automated Logic BUILDING CONTROLLERS
OptiFlex™ BACnet Building Controller
FACILITY CONTROL

OptiFlex™ BACnet Building Controller

High‑performance BACnet controller for advanced HVAC and central plant applications
The OptiFlex™ BACnet Building Controller OF028‑NR delivers powerful, scalable control for complex HVAC systems and central plant applications, combining graphical programming, high‑speed communications, and seamless WebCTRL® integration.

OptiFlex™ BACnet Building Controller

The OF028-NR provides the speed, power, memory, and I/O flexibility needed for the most demanding control applications in the industry. Capable of controlling multiple pieces of HVAC equipment simultaneously, this robust BACnet controller can support complex control strategies.

OptiFlex™ BACnet Building Controller

Designed for Advanced HVAC Applications

Engineered to address a wide range of HVAC applications, including complex central plant systems.

EIKON® Graphical Programming

Graphically programmed using EIKON® programming software, an object‑oriented tool that provides complete flexibility for developing custom control sequences.

Communicating Sensor Support

Supports Automated Logic® communicating sensors, available in various zone sensing combinations with support for setpoint adjustment and occupancy overrides.

Seamless WebCTRL® Integration

Connects seamlessly to the WebCTRL® building automation system for unified monitoring, control, and management.

Communications & Networking

The controller supports Gigabit Ethernet (Gig‑E) at 1000 Mbps, BACnet/IP, and DHCP IP addressing, providing high‑speed and flexible network connectivity.

I/O Expansion Capability

Supports up to 9 FIO expansion modules, which may be panel‑mounted or remotely installed, enabling scalable solutions with up to 208 total I/O points.

Memory & Data Retention

All control programs and historical data are stored in non‑volatile memory, eliminating the need for batteries.

Timekeeping & Power Resilience

A capacitor‑backed real‑time clock maintains accurate timekeeping for up to three days during power failures or network interruptions.

Document Name Description Document Type Language Action
Spec Sheet OptiFlex™ BACnet Building Controller (OF028‑NR) Spec Sheet PDF English Download
Modbus Protocol OptiFlex™ BACnet Building Controller (OF028‑NR) Modbus Protocol PDF English Download
What type of systems is the OF028‑NR designed for?

It is designed for advanced HVAC and central plant applications requiring high‑capacity control and integration.

Can the controller be expanded as system requirements grow?

Yes. Support for FIO expansion modules allows scalable I/O growth up to 208 points.

Is battery maintenance required?

No. Programs and data are stored in non‑volatile memory, and timekeeping is handled by a capacitor‑backed clock.

Does the OF028‑NR support third‑party integrations?

Yes. It supports Modbus integration and multiple serial communication ports for subsystem data sharing.

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