Node BACstack

A BACnet protocol stack written in pure JavaScript. BACnet is a protocol to interact with building automation devices defined by ASHRAE.

Note: This is an early prototype and shall not be considered as stable. Use it with caution and at your own risk!

Usage

Add Node BACstack to your project by using:

npm install --save bacstack

The API documentation is available under fh1ch.github.io/node-bacstack.

Features

The BACNET standard defines a wide variety of services as part of it's specification. While Node BACstack tries to be as complete as possible, following services are already supported at this point in time:

Service	Execute	Handle
Who Is / I Am	yes	yes¹
Who Has / I Have	yes¹	yes¹
Time Sync	yes	yes¹
UTC Time Sync	yes	yes¹
Read Property	yes	yes¹
Read Property Multiple	yes	yes¹
Read Range	yes¹	yes¹
Write Property	yes	yes¹
Write Property Multiple	yes	yes¹
Add List Element	yes¹
Remove List Element	yes¹
Create Object	yes¹	yes¹
Delete Object	yes¹	yes¹
Subscribe COV	yes¹	yes¹
Subscribe Property	yes¹	yes¹
Atomic Read File	yes¹	yes¹
Atomic Write File	yes¹	yes¹
Reinitialize Device	yes	yes¹
Device Communication Control	yes	yes¹
Get Alarm Summary	yes¹
Get Event Information	yes¹
Get Enrollment Summary
Acknowledge Alarm	yes¹
Confirmed Event Notification		yes¹
Unconfirmed Event Notification		yes¹
Unconfirmed Private Transfer
Confirmed Private Transfer

¹ Support implemented as Beta (untested, undocumented, breaking interface)

Example

const bacnet = require('bacstack');

// Initialize BACStack
const client = new bacnet({adpuTimeout: 6000});

// Discover Devices
client.on('iAm', (device) => {
  console.log('address: ', device.address);
  console.log('deviceId: ', device.deviceId);
  console.log('maxAdpu: ', device.maxAdpu);
  console.log('segmentation: ', device.segmentation);
  console.log('vendorId: ', device.vendorId);
});
client.whoIs();

// Read Device Object
const requestArray = [{
  objectId: {type: 8, instance: 4194303},
  properties: [{id: 8}]
}];
client.readPropertyMultiple('192.168.1.43', requestArray, (err, value) => {
  console.log('value: ', value);
});

Contributing

Implementing and maintaining a protocol stack is a lot of work, therefore any help is appreciated, from creating issues, to contributing documentation, fixing issues and adding new features.

Please follow the Contribution Guide when submitting any changes.

License

The MIT License