Keithley 2701, Руководство пользователя

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10-4 Remote Operations Model 2701 User’s Manual
Password
A user-defined password can be used to disable protected commands. Most Model 2701
commands are protected. When the use of password is enabled, there are commands to
either disable or enable the protected commands.
At the factory, the Model 2701 is assigned the following password name:
“DEFAULT”
The password is case sensitive and must be enclosed in quotes, as shown above.
NOTE From the front panel, the password can be cleared. When cleared, the use of
password is disabled and the password name resets to “DEFAULT”. The
password can be cleared using the SETUP menu as follows:
• Press SHIFT
• Press SETUP
• Use the edit keys to display CLR PASSWORD: N or Y
where: N = no (do not clear) and Y = yes (clear)
• Press ENTER
The password commands are listed in Table 10-1. The password commands are used to
perform the following operations:
• Disable or enable the use of a password. Disabling the use of a password enables
all protected commands:
SYSTem:PASSword:ENABle OFF ‘ Disable password.
SYSTem:PASSword:ENABle ON ‘ Enable password.
NOTE The password can also be enabled or disabled from the Model 2701’s
internal web page (see “Internal web page,” page 10-16).
• Disable protected commands. This places the Model 2701 in the
password-protected mode. In this mode, the only commands that can be sent are
the ones listed in Note 2 at the bottom of Table 10-1. Example using “DEFAULT”
as the password:
SYSTem:PASSword:CDISable “DEFAULT”
NOTE If the password is disabled, sending the :CDISable command
automatically enables the password and then places the Model 2701 in
the password-protected mode.
2701-900-01.book Page 4 Wednesday, August 3, 2011 9:43 AM