如何与rs485串口通信 [英] how to communicate with rs485 serial port

问题描述

我使用rxtxcomm.jar与rs232串口进行了通信但是它只向rs232发送数据我想将数据发送到rs485感谢任何帮助...

i have done a communication with rs232 serial port using rxtxcomm.jar but it sending data only to rs232 i want to send data to rs485 thanks for any help...

推荐答案

RS485 上的通信物理与 RS232 不同，即你需要在 PC 一侧使用不同的适配器（例如 USB 加密狗）。也就是说，这种差异对应用软件几乎没有任何影响：你基本上处理的是你之前使用过的虚拟串口。

Communication on RS485 is physically different from the RS232 one, that is you need a different adapter (e.g. USB dongle) on the PC side. That said, such difference has almost no impact on the application software: you basically deal with the same virtual serial port you did before.

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