这是西门子 840D sl 系统 DB10 常用信号表。
里面列了 100 个常碰到的信号，有地址、意思、谁传给谁（PLC 到 NC 还是 NC 到 PLC），还有用得多不多。
现场修机床时，想知道哪个信号是啥意思，怎么传的，直接查这个表，方便快。
要是想知道更细的，看后面的手册就行。
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![图片[1]-西门子 840D sl 系统DB10 接口信号前 100 个常用表，机床维修工现场查得快-机械资源网](https://www.u557.com/wp-content/uploads/2025/10/20251015182659959-wxsync-2025-10-68976d2039080a9e7d1d285fc03782c9.png)
![图片[2]-西门子 840D sl 系统DB10 接口信号前 100 个常用表，机床维修工现场查得快-机械资源网](https://www.u557.com/wp-content/uploads/2025/10/20251015182659539-wxsync-2025-10-c0510c69ca31ad0c90c0072ccff8a17f.png)
通过网盘分享的文件：840Dsl_NC 变量和接口信号v4.8_0818.pdf
链接: https://pan.baidu.com/s/12eTWCjfOti7Xbj7i81MtUw?pwd=cd8c 提取码: cd8c
推荐阅读（西门子PLC相关教程）
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