下载软件：media-downloader 或者  N_m3u8DL-CLI_v3.0.2_with_ffmpeg_and_SimpleG

https://github.com/caorushizi/mediago/releases/download/v2.0.2/media-downloader-setup-2.0.2.zip



S7-200 SMART 通信技巧详解
https://1847.siemens.com.cn/course/detail/1/18034
更新至第17集
1. S7-200 SMART 通信技巧详解
1.1 自由口通信参数详解
https://elearning.siccc.cn/70b93d1569264f8ab0c4110fa5572d71/86920ae9dd592d766bdcae702a0ad0dc-hd-encrypt-stream.m3u8
免费
1.2 自由口通信之XMT指令
https://elearning.siccc.cn/9526708a787d4c679a90d49b2644bcac/9940d8e8dfa0418031ac5c1eff3bf647-hd-encrypt-stream.m3u8
会员
1.3 自由口通信之RCV指令
https://elearning.siccc.cn/0d48c232e7a94d56aacf6869a2a47449/a9c37d5d3e7fbcfda5dc6621c61b11a4-hd-encrypt-stream.m3u8
会员
1.4 如果不使用RCV指令你知道如何接收数据吗？
https://elearning.siccc.cn/be785aed230047678a0d0a1eee3e3996/4dbf7537ed56f28e141f9b6ceb82cb52-hd-encrypt-stream.m3u8
会员
1.5 自由口通信接收不到数据如何排查？
https://elearning.siccc.cn/5a9b2e00236e4534a4677acd14041bd9/15de300d74fc665c30fe98eb3cc7f8c8-hd-encrypt-stream.m3u8
会员
1.6 S7-200 SMART与多台设备之间的自由口通信
https://elearning.siccc.cn/7e1dbe77b41044caaf60b2ac5dea7857/e9e7f54d00a7e2b44e3e2b5208a336e7-hd-encrypt-stream.m3u8
会员
1.7 Modbus RTU轮询之常见方法介绍
https://elearning.siccc.cn/a3bf8d1e4a9c425181f74457966ce348/363efbf1fbd76e95edf168ba66548def-hd-encrypt-stream.m3u8
会员
1.8 Modbus RTU轮询之条件写如何实现
https://elearning.siccc.cn/f10c156a1cf141b8af07d35a6ee2673f/0637906a591e5db8416d3a915fd64f19-hd-encrypt-stream.m3u8
会员
1.9 Modbus RTU 主站常见故障分析
https://elearning.siccc.cn/bc994830869371ed96880764a3fd0102/cff1175fff685bec1946150c925fd1b1-hd-encrypt-stream.m3u8
会员
1.10 Modbus RTU从站常见故障分析
https://elearning.siccc.cn/26965b60df2771ed800a6723a78f0102/4893d3c3676e24ff85144cfaf2f5d03c-hd-encrypt-stream.m3u8
会员
1.11 Modbus RTU通信正常，为何读取的数据显示不正确？
https://elearning.siccc.cn/490effb0068971eeaa570764a3fc0102/b8f1be2a4c03859c1324e0ce23791a5a-hd-encrypt-stream.m3u8
会员
1.12 Modbus TCP 常见通信故障诊断
https://elearning.siccc.cn/8bccd171eaf94eb89317f0d3518a5c63/d94551294e236f72eeffbc0beac22903-hd-encrypt-stream.m3u8
会员
1.13 Modbus TCP 轮询常见方法介绍
https://elearning.siccc.cn/08683ae0a08071ed91ea0764a3fd0102/525e2c000991f66afa85fa76de6827f1-hd-encrypt-stream.m3u8
会员
1.14 S7-200SMART PROFINET通信之读写非周期性数据
https://elearning.siccc.cn/91164db0df2771edbf3a0764a0fd0102/87ea07e24bcc249ce56de60de4e09303-hd-encrypt-stream.m3u8
会员
1.15 S7-200 SMART PROFINET IO通信诊断之查看CPU指示灯及PLC信息
https://elearning.siccc.cn/26f3f330e4a271ed8c920764b3ec0102/d85f28c80512a69a34f9401f58f77d3b-hd-encrypt-stream.m3u8
会员
1.16 S7-200SMART PROFINET 通信诊断之Web及特殊寄存器诊断
https://elearning.siccc.cn/2bf36620eb0c71edbfff6632b68f0102/f052c61c680daf6a42a59f3d37ca6302-hd-encrypt-stream.m3u8
会员
1.17 S7-200SMART PROFINET 通信诊断之指令诊断
https://elearning.siccc.cn/4558d06005d771eebfeb6732b68e0102/fa3c9907b948dda53c428866b059e3c7-hd-encrypt-stream.m3u8
会员
***********************************************

1.18 S7-200 SMART PROFINET通信常见问题    
    https://elearning.siccc.cn/e80905400e4d71ee80200675b3ed0102/4bf9b1b4c219f8ad6856b638760725c6-hd-encrypt-stream.m3u8
会员