A typical BAS retrofit rarely starts with a clean slate.
Behind every BACnet/IP network, there are always field devices waiting to be integrated—AHUs, pumps, ventilation systems, sensors, actuators, energy meters, and legacy equipment using different signals and protocols.
You may encounter:
The challenge is no longer just collecting these signals.
The real challenge is simplifying the field layer where BAS integration begins—without adding unnecessary controllers, protocol gateways, wiring complexity, and commissioning time.
Field devices → Controller / Gateway → BACnet/IP → BAS
Field devices → BA190Pro EdgeIO → BACnet/IP → BAS
The BA190Pro simplifies the field integration layer by collecting hardwired signals, integrating Modbus devices, and providing basic edge-level logic—while presenting everything as standard BACnet objects to the building management system.
It does not replace your BAS controller.
It simplifies the layer where real-world signals enter the system.
Each configured channel becomes a standard BACnet object:
Through the web interface, integrators can configure channel functions and BACnet object information, making point integration and commissioning easier from the BAS front-end.
For Modbus RTU devices, the isolated RS485 interface allows third-party meters and sensors to be integrated and published as BACnet objects on the same BACnet/IP network.
From the BAS perspective, field signals and Modbus data become unified BACnet points.
No two BAS projects require exactly the same I/O configuration.
One retrofit may need:
Another project may require a completely different combination.
Traditional fixed I/O controllers often force integrators to add extra hardware or accept unused channels.
BA190Pro follows a modular EdgeIO approach, allowing the I/O configuration to match the actual application requirements.
Better panel utilization. Simpler installation. Less unnecessary hardware.
Not every decision needs to travel through the BAS server.
For simple field-level requirements, BA190Pro provides configurable edge logic for:
Conditions and actions can be configured through the web interface, allowing local execution even when network communication is temporarily unavailable.
BA190Pro is designed to complement BAS control strategies—not replace complex HVAC sequences or supervisory control.
Modern buildings rarely operate with a single protocol.
A typical project may include:
Managing these different layers is often where integration time increases.
By converting field signals and Modbus devices into standardized BACnet/IP objects, BA190Pro helps reduce protocol complexity and simplify commissioning.
For projects that extend beyond the BAS layer, built-in MQTT and OPC UA support provides a pathway to cloud platforms and enterprise systems.
A common AHU retrofit scenario:
Existing field points:
With BA190Pro:
Reducing the need for separate Modbus-to-BACnet gateways.
For BAS integrators, the goal is not adding more hardware.
It is creating a cleaner, more efficient connection between field devices and the building automation system.
BA190Pro simplifies the edge—where the real-world signals begin.
If you are designing a BAS retrofit or integration project involving BACnet, Modbus, and hardwired field signals, let’s discuss how an EdgeIO architecture can simplify your design.
