Industrial Communications
Modbus RTU
A widely used industrial data protocol commonly carried over RS-485.
IN ONE SENTENCE
Multiple devices can exchange registers of measurements, settings and status over a serial bus.
In normal English
It is simple, mature and supported by huge numbers of meters, drives, controllers and sensors. The protocol and the RS-485 electrical layer are related but are not the same thing.
Why would I use it?
Use it for economical serial communication between compatible industrial devices.
THINK OF IT LIKE…
A shared industrial message format travelling down a serial road.
Related terms
RS-485, Modbus TCP, register
STILL NOT SURE?
Tell us what you're trying to do.
You don't need to choose the technology first. Tell us what needs connecting, measuring or monitoring and we'll help work backwards from the job.
Help me find the right technology