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是施耐德电气于1979年为使用PLC通信而发表的一种串行通信协议。 现在它已经成为工业领域通信协议的业界标准,并且是工业电子设备之间常用的连接方式。Modbus被广泛使用的原因主要有三个: Modbus通信协议作用在OSI模型的物理层(1层)、数据链路层(2层 ...
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 ...
Modbus remains widely used in industrial settings and the market is expected to grow from $1.2 billion to $2.5 billion by 2033, making it far from obsolete despite being an older protocol with no ...