ecat主站及其相关：

1.soem：GitHub - OpenEtherCATsociety/SOEM: Simple Open Source EtherCAT MasterSimple Open Source EtherCAT Master. Contribute to OpenEtherCATsociety/SOEM development by creating an account on GitHub.https://github.com/OpenEtherCATsociety/soem2.igh：EtherLab / EtherCAT Master · GitLabIgH EtherCAT Master for Linuxhttps://gitlab.com/etherlab.org/ethercat3.更为全面的igh 主站：GitHub - ribalda/ethercat: IgH EtherCAT Master + Gavin Lambert unofficial patchsetIgH EtherCAT Master + Gavin Lambert unofficial patchset - ribalda/ethercathttps://github.com/ribalda/ethercat4. C++写的全新etehrcat主站，功能完善中：GitHub - leducp/KickCAT: A C++ open source EtherCAT master stackA C++ open source EtherCAT master stack. Contribute to leducp/KickCAT development by creating an account on GitHub.https://github.com/leducp/KickCAT

5.纯rust语言etehrcat主站：

GitHub - ethercrab-rs/ethercrab: EtherCAT master written in pure RustEtherCAT master written in pure Rust. Contribute to ethercrab-rs/ethercrab development by creating an account on GitHub.https://github.com/ethercrab-rs/ethercrab

ecat从站及其相关：

1.soes：GitHub - OpenEtherCATsociety/SOES: Simple Open Source EtherCAT SlaveSimple Open Source EtherCAT Slave. Contribute to OpenEtherCATsociety/SOES development by creating an account on GitHub.https://github.com/OpenEtherCATsociety/SOES

2.从站ESC模拟器/仿真 ecslave，可创建128个从栈，只有esc处理，应用层需要自己编写：

light ethercat slave / Code / [13f4ba]https://sourceforge.net/p/ecslave/code/ci/master/tree/Profinet：

GitHub - rtlabs-com/p-net: PROFINET device stack for embedded devicesPROFINET device stack for embedded devices. Contribute to rtlabs-com/p-net development by creating an account on GitHub.https://github.com/rtlabs-com/p-netEtherNet/IP:GitHub - EIPStackGroup/OpENer: OpENer is an EtherNet/IP stack for I/O adapter devices. It supports multiple I/O and explicit connections and includes objects and services for making EtherNet/IP-compliant products as defined in the ODVA specification.OpENer is an EtherNet/IP stack for I/O adapter devices. It supports multiple I/O and explicit connections and includes objects and services for making EtherNet/IP-compliant products as defined in the ODVA specification. - EIPStackGroup/OpENerhttps://github.com/EIPStackGroup/OpENer

OPC UA:GitHub - open62541/open62541: Open source implementation of OPC UA (OPC Unified Architecture) aka IEC 62541 licensed under Mozilla Public License v2.0Open source implementation of OPC UA (OPC Unified Architecture) aka IEC 62541 licensed under Mozilla Public License v2.0 - open62541/open62541https://github.com/open62541/open62541

canopen：

1.canfestical：

https://hg.beremiz.org/https://hg.beremiz.org/2.canopen-stack：The API Reference and User Manual - CANopen StackThe free CANopen Stack project documentation describes the principle usage and some examples and includes various examples.https://canopen-stack.org/v4.4/

modbus：

1.freemodbus:GitHub - cwalter-at/freemodbus: BSD licensed MODBUS RTU/ASCII and TCP slaveBSD licensed MODBUS RTU/ASCII and TCP slave. Contribute to cwalter-at/freemodbus development by creating an account on GitHub.https://github.com/cwalter-at/freemodbus2.libmodbus:GitHub - stephane/libmodbus: A Modbus library for Linux, Mac OS, FreeBSD and WindowsA Modbus library for Linux, Mac OS, FreeBSD and Windows - stephane/libmodbushttps://github.com/stephane/libmodbus