本人安装的西门子软件是STEP7 V5.2+SP1,在打开 某一程序时提示如下内容:
One or more objects of a type cannot be represented,Unable to load the server "s7fk45ax.dll" for_S7H_6ES7_450_1AP00_0AE0_CT objects.Make sure that the required optional packages are installed.
各位高手,我应该安装什么软件包。急盼您的回复。