开源现场总线协议栈
EtherNet/IP、EtherCAT master、Profinet开源汇总：
EtherNet/IP:https://github.com/EIPStackGroup/OpENer
EtherCAT master:https://gitlab.com/etherlab.org/ethercat
EtherCAT master:https://github.com/OpenEtherCATsociety/soem
https://github.com/ribalda/ethercat 基于官方，功能更为全面的igh etehrcat主站。
https://github.com/leducp/KickCAT 一个C++写的全新etehrcat主站，目前功能不完善。
https://github.com/ethercrab-rs/ethercrab 一个纯rust语言编写的全新etehrcat主站，目前功能不完善。
EtherCAT slave:https://github.com/OpenEtherCATsociety/SOES
Profinet:https://github.com/rtlabs-com/p-net
CanFestival开源库网址:https://hg.beremiz.org/
freemodbus:https://github.com/cwalter-at/freemodbus
libmodbus:https://github.com/stephane/libmodbus
OPC UA:https://github.com/open62541/open62541
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