简单来说，Modbus调试软件就是串口助手，或网络调试助手，只不过增加了协议分析，CRC计算报文帧拼接的功能。 上一篇文章介绍了Modbus协议，物理层和协议层，主要包括3种模式：Modbus-RTU、Modbus-ASCII和Modbus-TCP。前两种是基于串口的，后一种是基于TCP网口的。

校验码：校验码通常是一组数字的最后一位，由前面的数字通过某种运算得出,用以检验该组数据的正确性。代码作为数据在向计算机或其它设备进行输入时，容易产生输入错误，为了减少这种输入错误，编码专家发明了各种校验检错方法，并依据这些方法设置了 ...

An ultra-compact design doesn’t have to mean limitations in terms of functionality. DISPLAY VISIONS demonstrates this with ...

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 ...

A new ultra-compact touchscreen interface proves that industrial control doesn’t need a large display to deliver big ...

“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 ...

It is possible to connect up to 20 M-Bus slaves and enable them to communicate on a Modbus-TCP network. Mapping and configuration is done in a web-based configuration tool allowing the user to set up ...