RS-485

RS-485 (also known as EIA-485) is a serial communication protocol used for data transfer between different devices. The data transmitted by RS-485 uses differential signaling, a method commonly used in electronic signal transmission where data is communicated as the difference between two complementary signals. RS-485 supports multi-point communication, making it suitable for applications where communication between multiple devices is needed. RS-485 can operate in half-duplex or full-duplex communication modes. In half-duplex mode, the transmission direction is switchable, allowing only one device to send data at a time. In full-duplex mode, simultaneous two-way communication is possible. RS-485 is widely used in industrial control systems, automation systems, building automation, energy management systems, and other fields that require reliable and long-distance transmission.

In terms of hardware, to ensure the accuracy of transmission, termination resistors are usually installed at both ends of the RS-485 communication line. This helps eliminate signal reflections and improve transmission stability.

Settings

Channel:

Rx: Show Rx data in report window.

Format:

Auto Detect: Set the Baud Rate manually if not selected.

Baud Rate: Data rate (bits per second), and the range is 110 ~ 2M (bps).

Data Bits: 4 to 16 bits.

Polarity: Idle high and Idle low.

Parity: N (None), O (Odd), or E (Even).

Stop Bits: 1 to 2 bit(s).

MSB first: The default is LSB first; click it to change to MSB first.

Waveform Area Settings:

Show scale in the waveform: Display the waveforms with scales.

Line Wrap Data: Use 1-2 value (hex) as header of data.

Report Unknown and Idle: Display the unknown and idle data in the Report Window.

Decode