At their core, BACnet and Modbus are the names of two open protocols.

BACnet stands for building automation and control (BAC) networks. It was developed and is maintained by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) and published in 1995. Designed for cross-communication, it enables devices to “talk” with one another.

Modbus® is an older protocol that was introduced in 1979 by Schneider Electric, then known as Modicon. Modbus is a forerunner of programmable logic controllers (PLCs).

Read the full blog post, 6 Ways BACnet Outperforms Modbus, to learn more about their similarities and differences.