NewLife.BACnet 1.1.2026.1024

NewLife.BACnet — BACnet Protocol

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A pure-managed BACnet protocol stack for .NET, built for building automation (HVAC, lighting, security and energy management). It implements complete BACnet/IP communication and integrates deeply with the NewLife IoT ecosystem.

BACnet (Building Automation and Control Networks) is the building automation network protocol defined by ASHRAE/ANSI 135 and ISO 16484-5. It is widely used in products from Johnson Controls, Honeywell, Siemens Building Technologies, Schneider Electric and other major vendors.

Source: https://github.com/NewLifeX/NewLife.BACnet
NuGet: NewLife.BACnet | Target frameworks: netstandard2.0 + net45

Highlights

Documentation

• Requirements — vision, core goals and functional requirements
• Feature list — implementation/test/comment status tracking (currently 90% complete)
• Architecture — five-layer architecture, components and key flows
• Competitive analysis — comparison matrix, gap analysis and strategic recommendations

Quick start

Install

dotnet add package NewLife.BACnet

Client: discover devices and read properties

using NewLife.BACnet.Protocols;
using NewLife.Log;

var client = new BacClient
{
    Port = 0xBAC0,          // default 47808
    WaitingTime = 3000,     // device response timeout (ms)
    Log = XTrace.Log,
};

client.Open();  // broadcast Who-Is and block until the first device responds

foreach (var node in client.Nodes)
{
    // Point address format "instance_type": "0_2" = AV[0]
    var value = client.ReadProperty(node.Address, "0_2");
    Console.WriteLine($"[{node.DeviceId}] AV[0] = {value}");

    var results = client.ReadProperties(node.Address, new[] { "0_0", "0_2" });
    foreach (var kv in results)
        Console.WriteLine($"  {kv.Key}: {kv.Value}");
}

client.Close();

Server: expose a BACnet device

using NewLife.BACnet.Protocols;

var server = new BacServer
{
    DeviceId = 666,
    StorageFile = "DeviceDescriptor.xml",
    Port = 0xBAC0,
    Log = XTrace.Log,
};

server.Open();  // start listening and broadcast I-Am to announce itself

IoT driver integration

using NewLife.BACnet.Drivers;

var driver = new BACnetDriver { Log = XTrace.Log };
var node = driver.Open(device, new BACnetParameter
{
    Port = 0xBAC0,
    DeviceId = 666,
    TargetAddress = "192.168.1.100:47808",
});

var values = driver.Read(node, new[] {
    new PointModel { Name = "Temperature", Address = "0_2" },
    new PointModel { Name = "Humidity", Address = "1_2" },
});

Configuration

Known limitations

Recommended tools

YABE (Yet Another BACnet Explorer) — a free BACnet network explorer that shows devices, objects and properties. It is the preferred peer for validating NewLife.BACnet during debugging.

Ecosystem Map

NewLife is a layered ecosystem of independently versioned open-source projects. The map below is shared verbatim by every NewLife repository; each project links to its repository and its primary NuGet package.

Project	What it does	Downloads
Foundation
NewLife.Core	Logging, configuration, caching, networking, serialization, scheduling and APM tracing.
NewLife.XCode	Data middleware: single tables at the tens-of-billions scale, automatic sharding, read-write splitting, 10+ databases.
NewLife.Net	High-performance network library: 1.77M pps / 14.5 Gbps on a single machine (TCP 1KB, 2026-10), 4M long-lived TCP connections.
NewLife.Remoting	Protocol communication and RPC framework for client/server applications and IoT devices.
NewLife.Agent	Installs .NET applications as OS daemons: Windows services and Linux systemd.
NewLife.Templates	dotnet new project templates for console, web, API, service, data and IoT projects.
Data & Messaging
NewLife.Redis	Redis client with microsecond latency, millions of ops/s and built-in message queues.
NewLife.RocketMQ	Pure managed RocketMQ client for Apache RocketMQ and Alibaba Cloud Message Queue.
NewLife.MQTT	MQTT client and server, including Alibaba Cloud IoT connectivity.
NewLife.NovaDb	Hybrid database in C#: embedded or networked, relational, time-series, message queue and KV in one.
NewLife.MySql	MySql driver and helper layer built on the NewLife data stack.
Web, AI & Distributed
NewLife.Cube	Rapid admin-platform framework: permissions, SSO, OAuth server and CRUD scaffolding.
Stardust	Distributed service platform: node management, APM, configuration center, registry and release center.
AntJob	Distributed task and real-time data scheduling platform with sharding, retries and backfill.
NewLife.AI	Unified client for 46 LLM providers plus ChatAI, a ready-to-run web chat application.
Industrial & IoT
NewLife.IoT	IoT standard library defining protocol contracts and device abstractions.
NewLife.Modbus	Modbus TCP/RTU/ASCII implementation on top of NewLife.IoT.
NewLife.Siemens	Siemens PLC protocol on top of NewLife.IoT.
NewLife.Omron	Omron PLC protocol on top of NewLife.IoT.
NewLife.Melsec	Mitsubishi Melsec PLC protocol on top of NewLife.IoT.
NewLife.OPC	OPC client for industrial data access.	—
NewLife.BACnet	BACnet building-automation protocol stack.
ZeroIoT	Lightweight open-source IoT platform with gateway and device management.	—
Vehicle Telematics
NewLife.JT808	JT/T 808 vehicle positioning protocol: 70+ message bodies, 2011/2013/2019.
NewLife.JT809	JT/T 809 platform-to-platform protocol for transport authorities.
NewLife.JT1078	JT/T 1078 in-vehicle video: RTP parsing, FLV/fMP4 remuxing and live streaming.
Domain Components
NewLife.Office	One package for Excel, Word, PPT, PDF and 15+ document formats.
NewLife.Audio	Cross-platform audio: codecs, device I/O, DSP, containers and streaming.
NewLife.Video	Video codecs, container formats, frame processing and streaming.
NewLife.Map	Unified interface over Baidu, AMap, Tencent and Tianditu with geocoding and coordinate conversion.
NewLife.IP	IPv4 geolocation with an offline memory-mapped database and an online API fallback.
Tools & Products
CrazyCoder	Developer toolbox: network, serial port, crypto, regex, Modbus and MQTT.
GitCandy	Self-hosted Git source code management system.	—
LuckyClover	Installs the matching .NET runtime automatically when launched from an older host.	—

Badges show the primary package of each project; theme, extension and satellite packages are listed on their NuGet pages. The 30+ packages not listed here (FTP, LoRa, Office extensions, protocol drivers and more) are available under the NewLifeX organization and on newlifex.com.

Team

<img src="/_dp/https://newlifex.com/logo.png" width="48" align="right" alt="NewLife" />

Founded in 2002, the NewLife team has spent more than two decades on the .NET and IoT ecosystem, maintains nearly 100 open-source projects (34 of them core to this map), and delivers integrated software and hardware solutions for power, logistics, healthcare, industrial control and internet industries. We live by the motto "learning has no seniority — mastery earns respect".

Open-source components have been downloaded 6.48M times from NuGet (ecosystem-wide, as of 2026-10).

Website: https://newlifex.com · Open source organization: https://github.com/NewLifeX

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License

MIT License — see LICENSE.