BACnet — A Foundation for Building Analytics

Since its approval as an ANSI/ASHRAE standard in 1995 and as an ISO standard in 2003, BACnet has become the most common network protocol in modern building automation systems. Although BACnet was not originally designed to enable analytics, it has a number of features that have facilitated the implementation of analytics applications, not the least of which is that BACnet offers a standard method for third-party analytics applications to access data in building systems. However, this article focuses on other features of BACnet that help building owners to implement analytics in their facilities.

John Petze’s recent article Introduction to Project Haystack described two activities that are a starting point for the implementation of analytics in a building system:

1. Understanding the meaning of your data

2. Documenting your understanding using semantic tags

The good news is that BACnet has capabilities that can help you to understand the data present in a building automation system and then to document the data points within your automation systems in an open fashion. Read More

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