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68
Standard Mode
Section 4-4
The Data Release key will have no function if pressed with an insufficient edit level.
The password can be entered in any I/O mask. Note that the Setup Mask is an
exception. The system variable MskchgPasswd is designed to prompt for pass-
word entry. If the Password Editor is selected in the programming system, pass-
words will not appear as they are entered on the terminal. Instead the character ‘X’
appears for every character that is entered.
Example:
Enter PASSWORD:
XXXX
This example illustrates hidden entry of a 4-digit number. If an invalid password is
entered, the authorization levels will automatically reset to 0.
It is recommended that at least one password - the master password - is pro-
grammed with the highest authorization level. The first password entered in the
password list via the programming system is the master password and as such has
a special function. The master password is unique in that it can not be changed on
the operating terminal. Furthermore, it can be used to reset all modified passwords
to the default values entered in the programming system.
Example:
Mask 5
access level = 10
Mask 6
access level = 20
Mask 7
access level = 30
Password 4712
Edit level = 15
View level = 25
Once the password ‘4712’ has been entered, the following accesses are permitted:
-
Mask 5
will be displayed, editing of values is authorized
-
Mask 6
will be displayed, editing of values is not authorized
-
Mask 7
will not be displayed, editing of values is not authorized
The access level for the Startup Mask is always 0.
The Setup Mask is an exception with regards to the password and external data
release functions. Since no communication is taking place when the Setup Mask is
displayed, the external data release function is not applicable. To restrict access,
passwords must be used. By defining the first editable variable in the Setup Mask
as a Password Editor, all further variables can be protected against unauthorized
access. The view level does not apply when accessing the Setup Mask. Viewing is
always permitted if a value less than or equal to 254 is selected for the access level
of the Setup Mask.
The edit level for all variables of the Setup Mask, with the exception of the Pass-
word Editor, is the same as that defined as the access level.
Access to the mask is always denied if an access level of 255 is defined for the
setup mask. This means that it will no longer be displayed during initialization of the
terminal and can therefore not be selected. However, all terminal-specific param-
eters can also be edited in any I/O mask. The new parameters become effective by
restarting the terminal or with the system variable Boot.
Summary of Contents for NT15S
Page 1: ...Cat No V056 E1 1 Programmable Terminal NT4S NT15S NT18S OPERATION MANUAL ...
Page 2: ...ii ...
Page 3: ...iii NT4S NT15S NT18S Programmable Terminal Operation Manual Produced March 1999 ...
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Page 26: ...12 The Terminals of the NT Series Section 1 2 1 2 4 1 2 NT4S SF122B E 1 2 4 1 3 NT4S SF123B E ...
Page 37: ...23 The Terminals of the NT Series Section 1 4 1 4 1 3 NT4S SF123B E 1 4 1 4 NT15S SF121B E ...
Page 54: ...40 The Terminals of the NT Series Section 1 7 1 7 6 3 ASCII Character Set Table ...
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