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5 System Functions
System
An instrument can never power up for the first time in Last.
If line power to the analyzer is interrupted, for example by pulling the line cord plug or by switching off
power to a test rack, Power On Last State may not work properly. For proper operation, Power On Last
State depends on you shutting down the instrument using the Standby key or the SYSTem:PDOWn SCPI
command. This will ensure the last state of each mode is saved and can be recalled during a power up.
Key Path
System, Power On
Mode
All
Example
SYST:PON:TYPE LAST
Notes
Power on Last State only works if you have done a controlled shutdown prior to powering on in Last.
If a controlled shutdown is not done when in Power On Last State, the instrument will power up in
the last active mode, but it may not power up in the active mode’s last state. If an invalid mode state
is detected, a Mode Preset will occur. To control the shutdown under remote control use the
:SYSTem:PDOWn command.
Readback Text
Last State
Backwards Compatibility
Notes
It is no longer possible to power-up the analyzer in the last mode the analyzer was running with that
mode in the preset state. (ESA/PSA SYST:PRESET:TYPE MODE with SYST:PON:PRESET) You can
power-on the analyzer in the last mode the instrument was running in its last state (SYST:PON:TYPE
LAST), or you can specify the mode to power-up in its preset state (SYST:PON:MODE <mode>).
Initial S/W Revision
Prior to A.02.00
Power On Application
Accesses a menu that lists the available Modes and lets you select which Mode is to be the power-on
application.
This application is used for Power On Type “Mode and Input/Output Defaults” and Restore System
Defaults All.
Key Path
System, Power On
Mode
All
Remote Command
:SYSTem:PON:MODE SA | BASIC | ADEMOD | NFIGURE | PNOISE | CDMA2K |
TDSCDMA | VSA | VSA89601 | WCDMA | WIMAXOFDMA
:SYSTem:PON:MODE?
Example
SYST:PON:MODE SA
Notes
The list of possible modes (and remote parameters) to choose from is dependent on which modes are
installed in the instrument.
Preset
This is unaffected by a Preset but is set on a “Restore System Defaults->All” to:
State Saved
No
Initial S/W Revision
Prior to A.02.00
Sequence Analyzer User's & Programmer's Reference
167