What is Serial Communication?

Definition

Data transmission where bits are sent sequentially over a single channel, used for PLC programming and device networking. Serial protocols including RS-232, RS-485, and Modbus connect drives, controllers, and HMIs in industrial systems.

Related Terms

RS-232

A serial communication standard for point-to-point connections between two devic...

RS-485

A differential serial communication standard supporting multi-drop networks of u...

Modbus

A widely used serial communication protocol for connecting industrial electronic...

Browse all Communication terms (27)

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