modbus rtu over tcp(modbus tcp 网关) [英] modbus rtu over tcp (modbus tcp gateway)

问题描述

是否可以使用 linux box 或 arduino 构建 modbus-RTU 以太网网关?

Is it possible to build a modbus-RTU ethernet gateway using a linux box or arduino?

我使用 modbus RTU 将 plc 从站连接在一起，我想通过 TCP 将其中一个连接到我的电脑作为主站.

I have plc slaves linked together using modbus RTU, and I want to connect one of them over TCP with my pc as master.

我想知道我是否可以使用连接到路由器的 linux box(rasbery pi/raspbian)作为 modbus-to-tcp 转换器，通过将 USB 端口通过管道连接到某个端口上的本地 ip，因为将连接一个 plc在 modbus rtu 到 linux box 的 usb 端口.管道命令将是这样的:

I wonder if I can use a linux box (rasbery pi/raspbian) connected to a router, as a modbus-to-tcp converter by piping the usb port to my local ip on some port, as one plc will be connected in modbus rtu to the linux box`s usb port. Piping command will be something Like this:

nc -l 5626 > /dev/ttyUSB0 < /dev/ttyUSB0

我的目标是使用 modbus 通过 linux box 将一台电脑(与 linux box 联网)连接到该 plc.

My goal is to connect a pc (networked with the linux box) to that plc through the linux box using modbus.

推荐答案

我不完全确定您的要求是什么，但您可能想查看以下库.这是一个 Modbus TCP->RTU 库，我假设您可以使用.

I'm not entirely sure as to what your requirements are, but you may want to have a look at the following library. It's a Modbus TCP->RTU library I assume you can use.

https://github.com/3cky/mbusd

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