412-5H 6ES7412-5HK06-0AB0做热备冗余能否时直接用以太网连接，需不需要加网卡，具体怎么实施？
最佳答案
不需要。可以采用TCP/IP建立容错连接，另外注意软硬件之间的兼容性。
S7-400H CPU与WinCC之间的冗余通讯
https://support.industry.siemens.com/cs/document/109752927/s7-400h-cpu%E4%B8%8Ewincc%E4%B9%8B%E9%97%B4%E7%9A%84%E5%86%97%E4%BD%99%E9%80%9A%E8%AE%AF-?dti=0&lc=zh-CN
S7-400H入门视频
https://support.industry.siemens.com/cs/document/109752773/s7-400h%E5%85%A5%E9%97%A8%E8%A7%86%E9%A2%91-?dti=0&lc=zh-CN
PCS 7 中S7-400H集成PROFINET口基于ISO-on-TCP的容错连接
https://support.industry.siemens.com/cs/document/76402832/pcs-7-%E4%B8%ADs7-400h%E9%9B%86%E6%88%90profinet%E5%8F%A3%E5%9F%BA%E4%BA%8Eiso-on-tcp%E7%9A%84%E5%AE%B9%E9%94%99%E8%BF%9E%E6%8E%A5?dti=0&lc=zh-CN
SIMATIC 容错系统 S7-400H (V6.0)
https://support.industry.siemens.com/cs/document/82478488/simatic-%E5%AE%B9%E9%94%99%E7%B3%BB%E7%BB%9F-s7-400h-(v6-0)?dti=0&lc=zh-CN
如何实现WinCC V7和S7-400H PN的工业以太网通信
https://support.industry.siemens.com/cs/document/74930533/%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0wincc-v7%E5%92%8Cs7-400h-pn%E7%9A%84%E5%B7%A5%E4%B8%9A%E4%BB%A5%E5%A4%AA%E7%BD%91%E9%80%9A%E4%BF%A1?dti=0&lc=zh-CN
如何在Step 7中组态S7-400H站
https://support.industry.siemens.com/cs/document/78031112/%E5%A6%82%E4%BD%95%E5%9C%A8step-7%E4%B8%AD%E7%BB%84%E6%80%81s7-400h%E7%AB%99?dti=0&lc=zh-CN
冗余系统中S7-400H冗余控制器的兼容性
https://support.industry.siemens.com/cs/document/79644378/%E5%86%97%E4%BD%99%E7%B3%BB%E7%BB%9F%E4%B8%ADs7-400h%E5%86%97%E4%BD%99%E6%8E%A7%E5%88%B6%E5%99%A8%E7%9A%84%E5%85%BC%E5%AE%B9%E6%80%A7?dti=0&lc=zh-CN
S7-400H 与 PROFINET 的组态示例
https://support.industry.siemens.com/cs/document/66644434/s7-400h-%E4%B8%8E-profinet-%E7%9A%84%E7%BB%84%E6%80%81%E7%A4%BA%E4%BE%8B?dti=0&lc=zh-CN
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