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Communication

What is RS-485?

Definition

A differential serial communication standard supporting multi-drop networks of up to 32 devices over distances to 1200 metres. RS-485 is the physical layer for Modbus RTU networks connecting drives, PLCs, and HMIs.

Related Terms

RS-232

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

Modbus

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

Serial Communication

Data transmission where bits are sent sequentially over a single channel, used f...

Browse all Communication terms (27)
Previous in CommunicationRS-232Next in CommunicationSerial Communication

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