解压后，源码为“modbus_server_tcp.c”，它模拟一个Modbus TCP传感器。源码的讲解请参考《11.7 Modbus TCP编程与实验》。 当前台程序、MQTT程序使用RPC接口读写Modbus TCP传感器时，后台程序（控制中心）发出的Modbus TCP请求将到达“modbus_server_tcp”。 Yocto项目（YP）是一个 ...

这篇文章是接上一篇Modbus协议简介，主要介绍Modbus实际项目应用—libmodbus驱动库的使用，断断续续写了近一周时间。 上一篇文章，我们介绍了Modbus协议物理层和协议层，我们知道了Modbus是一种总线协议，它可以基于串口或网口，以基于串口的Modbus-RTU为例，我们 ...

Modbus TCP connections pose many benefits over RTU RS-485 alternatives. Image: PV Tech. In the last couple of years, the market has seen a few commercial and industrial (C&I) inverter models and ...

“Not being overcomplicated is Modbus TCP/IP’s biggest draw, not only for PLCs, but especially for PC-based applications,” said Jason Haldeman, senior product specialist for I/O and networking at ...

The mistake in 2026 isn’t using Modbus, it’s integrating it incorrectly. Success comes from isolating your Modbus networks, ...

Modbus is a well known protocol used for instance fo industrial, or home automation tasks. It may run on physical layers such as serial (RS232, or RS485) or ethernet (TCP, or UDP). In order to test ...