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We recommend using hardware flow control whenever possible, especially when using higher baud
rates.
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
S01FLOW1
Set rear panel RS-232 port to use hardware
flow control.
S01FLOW1
S01FLOW?
Query flow control setting of rear panel RS-232
port.
S01FLOWx , where x is 0, 1, or 2
depending on the current flow control
setting.
8.51. FPLOCK -- Lock/Unlock Front Panel
This command controls the front panel lock feature. When FPLOCK is enabled, the user may not make
any changes to the system via the front panel. The system settings will still be viewable on the LCD,
but the user will get an error message if he tries to change them. When FPLOCK is disabled, the user
has full access to the system settings via the front panel.
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 front panel
password can be changed via the
FPPSWD 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
S01FPLOCK1
Lock the front panel to prevent
users from changing the settings.
S01FPLOCK1
S01FPLOCK0,yumyum
Attempt to unlock the front panel
by using an invalid password
(yumyum).
S01ERROR#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.
S01FPLOCK0,aspi
Unlock the front panel by using
the correct password.
S01FPLOCK0
S01FPLOCK?
Query the locked status of the
front panel.
S01FPLOCKx , where x is 0 or 1
depending on whether the front panel is
unlocked or locked, respectively.