> For the complete documentation index, see [llms.txt](https://docs.greenstack.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greenstack.dev/fundamentals/building-engineering/connectivity/building-automation.md).

# Building Automation

## Configuring BACnet

{% hint style="warning" %}
Before you begin, you must have an active edge device with a BACnet connector configured.  See the [Planning for BACnet](#planning-for-bacnet) section.
{% endhint %}

To configure BACnet:

1. **Login** to the **Green Stack Console** and navigate to **Building Engineering**

### Adding BACnet Devices

To add BACnet devices:

1. Select a **Site** from the system profile tree
2. Expand **Connectivity** and select the **Building Automation** folder

{% tabs %}
{% tab title="BACnet Discovery" %}
To add devices via BACnet discovery:

1. Click **Add Devices**
2. **Select** the discovered **devices** you'd like to add
3. Click **Import Devices** to save the devices
   {% endtab %}

{% tab title="Manually" %}
To add a BACnet device manually:

1. Select **Manual Entry** from the **Add Devices menu**
2. Provide a **Device Name**, **Device Instance**, and brief **description**
3. Provide additional optional fields as desired
4. Click **Save Device** to save the device
   {% endtab %}
   {% endtabs %}

### Adding BACnet Points

To add BACnet points in a managed BACnet device:

1. Select a **BACnet device** from the system profile tree
2. Select the **Points** tab

{% tabs %}
{% tab title="BACnet Discovery" %}
To add points via BACnet discovery:

1. Click **Add Points**
2. **Select** the discovered **points** you'd like to add
3. Click **Import Points** to save the points
   {% endtab %}

{% tab title="Manually" %}
To add a BACnet point manually:

1. Select **Manual Entry** from the **Add Points menu**
2. Select a **Point Type** from the dropdown
3. Provide a **Point Name**, **Object Instance**, and brief **description**
4. Provide additional optional fields as desired
5. Click **Save Point** to save the device
   {% endtab %}
   {% endtabs %}

## BACnet Alarming

Managed BACnet point alarms are automatically annunciated to the Green Stack console by default. The behavior of the alarm and its priority are determined by the configuration of the BACnet point and its associated notification class. 

#### Alarm Priority

When a new alarm is received, it is prioritized by the assigned notification class priority.

<table><thead><tr><th width="210">NC Priority</th><th width="174">Alarm Priority</th><th>Alarm Level</th></tr></thead><tbody><tr><td><strong>0-63</strong></td><td>PRI1</td><td><mark style="color:red;">CRITICAL</mark></td></tr><tr><td><strong>64-127</strong></td><td>PRI2</td><td><mark style="color:orange;">WARN</mark></td></tr><tr><td><strong>128-191</strong></td><td>PRI3</td><td><mark style="color:yellow;">CAUTION</mark></td></tr><tr><td><strong>192-255</strong></td><td>PRI4</td><td><mark style="color:blue;">NOTICE</mark></td></tr></tbody></table>


---

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