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Jaces, SMAs, Device Count 101

bas jace 8000 9000 sma device count points

When working with Niagara controllers like the JACE 8000 or JACE 9000, conversations often revolve around device limits, points, and Software Maintenance Agreements (SMA). These licensing terms play an important role in how a system is designed, expanded, and maintained.

Why it matters: This guide explains what these terms mean, how they affect your Niagara system, and what contractors and facility teams should understand when planning a BAS installation or upgrade.

Niagara Basics

Understanding Device Limits, SMA, and Points in a Niagara JACE (8000 & 9000)

If you’re new to Niagara-based building automation systems, you’ve probably heard terms like device limits, points, and SMA mentioned when discussing a JACE 8000 or JACE 9000.

For many technicians and facility teams, these licensing concepts can feel confusing at first. The good news is that once you understand the basics, it becomes much easier to plan a system, size a controller correctly, or troubleshoot licensing questions.

Dive Deeper: Let’s break down how device limits, points, and SMA licensing work in simple terms.
Article Sections
What is a JACE? Device Limits Points Do JACE Licenses Limit Points? What is an SMA? JACE 8000 vs JACE 9000 Putting It All Together The Bottom Line
Niagara Basics

What Is a JACE?

A simple explanation of the controller at the center of many Niagara-based building automation systems.

A JACE, short for Java Application Control Engine, is a hardware controller that runs the Niagara Framework.

Its job is to act as the brain of the building automation system, helping different devices and systems communicate, share data, and work together from one central platform.

Common devices a JACE may connect to
  • VAV controllers
  • HVAC equipment
  • Lighting systems
  • Energy meters
  • Sensors and actuators
Common communication protocols
  • BACnet
  • Modbus
  • LonWorks
  • SNMP
  • Proprietary device drivers
Bottom line: Think of the JACE as the central translator and data hub for a building, helping multiple systems communicate through one unified platform.
Niagara JACE 9000 controller
Licensing Basics

Device Limits vs. Points

These two terms often come up together in Niagara conversations, but they mean very different things. One refers to how many pieces of equipment a JACE can connect to, while the other refers to the individual values and data being managed within the system.

What Are Device Limits?

Device limits determine how many field devices a JACE is licensed to communicate with.

A device limit refers to the number of controllers or connected devices a JACE can support under its license.

A JACE may be licensed for
  • 5 Devices
  • 10 devices
  • 25 devices
  • 100 devices
  • 200+ devices
Why it matters: Each BACnet controller, Modbus meter, or other connected controller typically counts as one device.

Example: A system might include:

  • 1 air handler controller
  • 12 VAV controllers
  • 2 energy meters
  • 1 boiler controller

That equals: 16 devices

If your JACE license only allows 10 devices, you would need to upgrade the license in order to communicate with the full system.

Why device limits exist
  • Small buildings
  • Medium commercial systems
  • Large campuses
Bottom line: Device limits help scale Niagara systems appropriately, so integrators can choose the right license for the size of the job instead of oversizing the hardware from the start.

What Are Points?

Points are the individual pieces of data coming from the devices connected to the system.

If devices are the pieces of equipment, then points are the individual values being monitored, displayed, trended, or controlled within those devices.

*In Niagara 50 points is equivalent to ONE device for licensing. 

Examples of points include
  • Space temperature
  • Fan status
  • Damper position
  • Airflow readings
  • Alarm signals
Why it matters: Each device may contain dozens or even hundreds of points, depending on how much information is being brought into the JACE.

Example: A VAV controller might contain:

  • Space temperature
  • Setpoint
  • Airflow
  • Damper command
  • Occupancy status

That could equal 10–30 points for a single device. 50 points is the max before you would need another device. 

The JACE processes these points for
  • Graphics
  • Alarms
  • Trending
  • Logic
  • Energy reporting
Bottom line: Points represent the actual data inside the system, and while they are different from device counts, they still play a major role in overall system performance and usability.
Licensing Clarified

Do JACE Licenses Limit Points?

In most Niagara JACE deployments, licensing is primarily based on devices, with consideration to individual points. Point counts still matter because they directly affect how the system performs.

While a JACE license typically focuses on the number of connected devices, the number of points being processed still plays a major role in the overall health and responsiveness of the system.

Points still impact
  • System performance
  • Database size
  • Network traffic
Larger systems often use
  • Multiple JACEs
  • Supervisor servers
  • Distributed architecture
Why it matters: A JACE handling hundreds of devices and thousands of points requires thoughtful system design. Even if the device license is correct, too much data concentrated in one controller can still create performance concerns.

Bottom line: JACE licenses usually focus on devices, not points — but point counts still have a real impact on scalability, responsiveness, and long-term system design.

Software Support

What Is an SMA (Software Maintenance Agreement)?

A Software Maintenance Agreement (SMA) is Niagara’s way of helping keep your system current, supported, and eligible for important software-related updates and changes.

In simple terms, an active SMA helps ensure that your Niagara system can continue to evolve as your building, software requirements, and cybersecurity expectations change over time.

An active SMA may provide access to
  • Niagara software updates
  • Security patches
  • New features
  • Technical support resources
  • License upgrades
Without an active SMA
  • Software upgrades may not be available
  • Cybersecurity updates may be missed
  • Expanding or modifying licenses can become more complicated
Why it matters: In modern BAS systems — especially those connected to IT networks — keeping software current is increasingly important for performance, security, and long-term flexibility.

Bottom line: An SMA helps keep your Niagara system supported, up to date, and better prepared for future upgrades, licensing changes, and cybersecurity needs.

JACE 8000 vs JACE 9000

The JACE 9000 is the newer generation Niagara controller that builds on the capabilities of the JACE 8000.

Key improvements include
  • Faster processing power
  • Improved cybersecurity features
  • Expanded platform support
  • Future Niagara compatibility
Why it matters: For many new installations, the JACE 9000 is becoming the preferred platform, while many existing systems continue running on the JACE 8000.

Putting It All Together

When designing or expanding a Niagara system, three key elements should be considered.

1
Device Count

How many controllers or devices will the JACE communicate with?

2
Point Count

How much data will the system manage?

3
Software Maintenance (SMA)

Is the system licensed and maintained to receive updates and support?

Bottom line: Understanding devices, points, and SMA helps ensure a Niagara system is properly sized, scalable, and secure.
Bottom Line

Understanding the Basics Makes Expansion Easier

If you’re planning a Niagara system or expanding an existing installation, it is important to understand how device limits, points, and SMA licensing work together.

Getting the licensing right early can help prevent limitations later, improve scalability, lower overall licensing costs, and make future upgrades much easier to manage.

Need Help with Niagara Licensing?

Stromquist works with contractors and integrators across the Southeast to help design, license, and support Niagara-based building automation systems.

Talk to Our Team

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