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F01NVINIT
Reinitialize non-volatile memory and perform a
software reset.
No status message will be generated. There
will be a short delay and then the Vortex
will reset.
8.101. NVLOCK -- Lock/Unlock Non-Volatile Memory
This command controls the non-volatile memory lock feature. When NVLOCK is enabled, the user may not save
any system settings to non-volatile memory. This includes global parameters, presets, macros, labels, and logic
assignments. The lock applies whether the user tries to make the changes via RS-232, front panel, logic inputs,
or any other method. The user will still be able to query all the features of the device, but will get an error
message if an attempt is made to change them. When NVLOCK is disabled, the user has full access to the system
settings.
Usage of this command is similar to other boolean commands (see
Section 6.1) except that when disabling this
feature, the password must be supplied for the command to work. If an incorrect password is supplied,
'ERROR#005' will be generated. The examples below illustrate the correct usage. The examples assume that the
password has been set to 'aspi' (the default). The NVLOCK password can be changed via the
NVPSWD
command.
This command is saved to global non-volatile memory and is not part of a preset. Its value is saved each time it
is changed. It will retain its value after power-down. Since this command writes to non-volatile memory, there
will be a delay before an acknowledgment is returned.
Example Description Status Message
F01NVLOCK1
Lock the non-volatile memory to
prevent users from changing the
settings.
F01NVLOCK1
F01NVLOCK0,yumyum
Attempt to unlock the non-volatile
memory by using an invalid password.
F01ERROR#005 -- since an invalid password
was given, an error message was generated. If
error messages have been disabled (via the
ERROR command), then no status message will
be generated.
F01NVLOCK0,aspi
Unlock the non-volatile memory by
using the correct password.
F01NVLOCK0
F01NVLOCK?
Query the locked status of the non-
volatile memory.
F01NVLOCKx , where x is 0 or 1 depending on
whether the non-volatile memory is unlocked or
locked, respectively.
8.102. NVPSWD -- Change Non-Volatile Memory Password
This command sets or queries the non-volatile memory password. This password is used in conjunction with the
NVLOCK command. The non-volatile memory must be unlocked ('NVLOCK0') in order to use this command to set
or query the non-volatile memory password. If the non-volatile memory is locked, then this command will result
in 'ERROR#004'. The examples below assume that the non-volatile memory is unlocked.
Example Description Status Message
F01NVPSWDlemur
Set non-volatile memory password to 'lemur'.
F01NVPSWDlemur
F01NVPSWD?
Query the current non-volatile memory password.
F01NVPSWDlemur
84


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