Symbol: 
Function: The command changes the password for the user who is currently logged on the PLC.
Call: “Online Security” menu
Requirement: You are logged in to the device as a user.
The command opens the “Change Password for Device User” dialog for defining a new password. You have to specify the old password again.
NOTICE
After performing this action, you can no longer use the previous password to log in.
Make sure that you use a strong password. Note the following:
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Password length >= 8 characters (best >= 12)
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Use uppercase and lowercase
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Include numbers
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Use special characters
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Do not use existing names or sequence of characters that are easy to guess (for example, "123", "abc", "qwerty")