Technical data

R911305038 / 01 | Rexroth VCP-Operating Concept Electric Drives and Controls | Bosch Rexroth AG 5-135
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5.17 Password Protection
Password protection prevents masks from being accessed and the
data they contain from being altered without proper authorization. The
protective function is available in every operating device. It is achieved
by assigning access levels to masks and by using passwords.
Unless otherwise specified by the programmer, the access levels for all
masks automatically default to the lowest level (=0). That means, no
password is required to access masks with this access level.
Two authorization levels, referred to as the edit level and view level,
are assigned to every password.
View level View level means that the next mask can be viewed after the pass-
word is entered; but the values in it cannot be edited.
Edit level Edit level means that the mask can be viewed after the password is
entered and the values in it can be edited.
The following rules apply to passwords:
– Access is permitted if the view level and edit level values are greater
than or equal to the values specified for the access level.
– The edit level must be equal or less than the view level.
– The higher the values for the view level and edit level, the higher the
degree of authorization.
– The valid range of values for the view level and edit level is 0 to 255.
– The default setting for both is 0.
– The authorization levels are automatically set to 0 if you enter an in-
correct password.
– If you select the Data Release key for an edit level that is too low, no
function is implemented when you select the key.
You can enter a password in all masks. The only special case is the
setup mask. The system variable MskchgPasswd is available for
entry.
In the programming software, you can select the Password Editor,
which allows hidden password entry on the operating device. An X then
appears for each character you enter in the operating device.
See chapter “MskChgPasswd“ on page 5-79.