这个问题应该是你做了一些CiR 不允许的事情。

比如说

" modification of the following DP Slave Parameters: Bus address , assignment to the DP master, parameter assignment data, diagnostics address" is not allowed in RUN Mode. "

你可以比较online 和offline system data object ("Execute code comparison")

还有Station -> Check CiR compatibility

如果你得到的结果是” CiR compatibility and the configuration was not consistent" , 那就代表你需要计划一个shutdown 了。 做一个普通的hardware configuration download, 下载完再做多一次Consistency check. 应该就解决了。