Niagara N4

Niagara N4 builds on the legacy of the Niagara Framework ® in new and exciting ways. It’s less reliant on browser plug-ins, faster and easier to use. A truly open framework, N4 delivers a variety of notable improvements to help businesses take full advantage of the Internet of Things, including advanced visualization and new search, security and navigation tools. N4 brings support for our newest platform, the Niagara Edge 10 controller! By leveraging the Niagara Framework®, Edge 10 offers 20,000+ Niagara certified professionals a single open programming tool infrastructure and the ability to create smarter more efficient systems with world-class cyber security.


BACnet is a communications protocol for Building Automation and Control (BAC) networks that leverage the ASHRAE, ANSI, and ISO 16484-5 standard protocol. BACnet was designed to allow communication of building automation and control systems for applications such as heating, ventilating, and air-conditioning control (HVAC), lighting control, access control, and fire detection systems and their associated equipment. The BACnet protocol provides mechanisms for computerized building automation devices to exchange information, regardless of the particular building service they perform.


Modbus is a serial communications protocol originally published by Modicon in 1979 for use with its programmable logic controllers (PLCs). Modbus has become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices.


LonWorks (local operating network) is a networking platform specifically created to address the needs of control applications. The platform is built on a protocol created by Echelon Corporation for networking devices over media such as twisted pair, powerlines, fiber optics, and RF. It is used for the automation of various functions within buildings such as lighting and HVAC.


MQTT is an OASIS standard messaging protocol for the Internet of Things (IoT). It is designed as an extremely lightweight publish/subscribe messaging transport that is ideal for connecting remote devices with a small code footprint and minimal network bandwidth. MQTT today is used in a wide variety of industries, such as automotive, manufacturing, telecommunications, oil and gas, etc.


M-Bus (Meter-Bus) is a European standard (EN 13757-2 physical and link layer, EN 13757-3 application layer) for the remote reading of water meter, gas or electricity meters. M-Bus is also usable for other types of consumption meters. The M-Bus interface is made for communication on two wires, making it cost-effective. A radio variant of M-Bus (Wireless M-Bus) (circle-link) is also specified in EN 13757-4.


10BASE-T1L (T1L) protocol allows devices to communicate on low-cost single twisted pair cable within an IP network. It reduces the cost of the installation of these devices. Through the Honeywell T1L media adaptor, T1L networks can be connected to main IP networks by converting one media type to another. An RJ-45 connector connects the 10BASE-T network cable to a switch or host device, and a three-way screw terminal connects the downstream T1L devices with the twisted pair cable.

Other Technologies

KNX – open standard for commercial and domestic building automation
oBIX (Open Building Information Exchange) – standard for RESTful Web Services-based interfaces to building controls systems
OPC (Open Platform Communications) – series of standards and specifications for industrial communication
NiagaraAX – open, Java-based framework that can connect almost any embedded device or system