继续学习ABB 800A配置手册第一章功能和组件，进入第146页。

To password protect the libraries:

要用密码保护库：

1. Right-click the library and select Properties > Protection. The Protection Properties dialog opens

2 Click Set Password. The Password dialog opens, see Figure 49.

点击设置密码，打开密码对话框，见第49页。

Figure 49. Password dialog box

图 49. 密码对话框

3. Enter the new password and confirm it in the Verify new password field.

输入新的密码，在验证新密码字段进行确认。

If the library is already password protected, you have to enter the old password before entering a new one. A password must be at least 8 characters long and should contain characters from three of the following groups:

如果库已受密码保护，则必须先输入旧密码，然后再输入新密码。密码长度必须至少为 8 个字符，并且应包含以下三组中的字符：