modbus测试工具
Modbus_Application_Protocol_V1_1b3.pdf
modbus TCP wireshark抓包分析
https://blog.csdn.net/weixin_40592935/article/details/80935795
https://www.cnblogs.com/Db2k/p/12373388.html
进入主机设备,监听与modbus tcp通信网口,并保存log文件,用于导出分析
root@apalis-tk1-mainline:~# tcpdump -i enp1s0 host 192.168.71.7 -w modbus_tcp.cap