Serial Interface

Understanding RS232 and RS485 Communication

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Understanding RS232 and RS485 Communication

Overview of RS232 The RS-232 interface complies with the serial data communication interface standard established by the Electronic Industries Alliance (EIA). The original designation is EIA-RS-232 (abbreviated as 232, RS232). It is widely used for external connections of computer serial interfaces, including connection cables, as well as mechanical, electrical, signal, and transmission processes. The RS-232-C … Read more

RS-485 and MODBUS: Characteristics and Communication

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RS-485 and MODBUS: Characteristics and Communication

RS-485 belongs to wired transmission, so it requires a hardware transmission medium, which can actually be just two wires. The signal transmitted over these two wires is the same; the sender splits this signal into two, but the receiver restores it to the original signal. The advantage of this method can be compared with RS-232; … Read more