最近在折腾工控协议的仿真模拟，发现国内在这方面的文章还是比较少的，现存的也是零零散散，没找到比较系统的文章，于是发挥信息收集功底（渗透师基本功），一顿Google搜索猛如虎，总算找到了点东西，在此分享给大家，供大家参考。
S7协议
S7-300服务端
S7-300客户端
modbus 协议
客户端
服务端
dnp3协议
IEC 60870-5-104协议
https://sourceforge.net/projects/iecserver/
https://sourceforge.net/projects/qtester104/
BACnet协议
综合模拟仿真工具
THE VINCI PROTOCOL ANALYZER
THE VINCI PROTOCOL ANALYZER is application for engineers and developers who are working with industrial communication protocols to simulate, analyze and test. With this tool you can monitor communication channel – in order to know what master asks and what slaves answers. You will be able to use it to simulate master or slave devices. We invite you to new engineering experiences with THE VINCI PROTOCOL ANALYZER.
THE VINCI PROTOCOL ANALYZER application supports:
IEC-60870-5-101
IEC-60870-5-103
IEC-60870-5-104
MODBUS (RTU, ASCII)
MODBUS TCP
因众所周知的原因，需要上述所有模拟仿真工具的朋友可以单独跟我获取联系
参考
https://ricolsen1supervc.wordpress.com/2017/07/01/free-tools-for-testing-communication-protocols/