What is the difference between Modbus and BACnet?

What is the difference between Modbus and BACnet?

BACnet is different from Modbus is several ways. First, the data that BACnet sends can be much more complex. The data is organized in “objects” and each object has “properties”. For example, a pressure transmitter might send one object called “Process Pressure”.

What is the difference between BACnet IP and BACnet Ethernet?

IP is routable, but requires a BACnet Broadcast Management Device (BBMD) on each subnet to send messages across the network. So, you’d likely use Ethernet if you only need to communicate between subnets, and would use IP to communicate across the network.

What type of protocol is BACnet?

data communication protocol for building
BACnet is “a data communication protocol for building automation and control networks.” A data communication protocol is a set of rules governing the exchange of data over a computer network that covers everything from what kind of cable to use to how to form a particular request or command in a standard way.

How does BACnet IP work?

The “IP” in BACnet over IP is “Internet Protocol,” one of the main protocols that allow computers to talk with each other over a network. BACnet over IP allows for communication between different IP subnets, multi-campus control systems, and can even use fiber and gigabit-ethernet.

How does BACnet protocol work?

How Does BACnet Work? BACnet works by dividing the problem of interoperability into three distinct areas, and by defining methods and standards for implementing each. All information within an interoperable BACnet device is modeled in terms of one or more information objects.

Does BACnet use EtherNet cable?

Communications in BACnet over IP rely upon the protocol rules of IP and Ethernet. With BACnet over MS/TP, each device is wired via RS-485 twisted-pair serial cabling, daisy-chained together into one network.