打开s7-318硬件配置无法显示MASTER DRIVES CBP，帮助文件为 ：
Des cription of Error:
No changes can be made in this station because it is in "system diagnostics?mode or the project is write-protected.
To Correct or Avoid Error:
Open the offline configuration of the station (menu command Station > Open Offline) or
Copy the project to a directory to which you can write or
Install the necessary optional package.
同时另一信息显示：Des cription of Error:
No changes can be made in this station because it is in "system diagnostics?mode or the project is write-protected.
To Correct or Avoid Error:
Open the offline configuration of the station (menu command Station > Open Offline) or
Copy the project to a directory to which you can write or
Install the necessary optional package.
原程序内已配置好CBP,在另一台PC上可读出.
请问如何读出并能更改.