SYSTem Subsystem
l Lock requests can be nested; each request increases lock count by 1. For every request, you will need a release (
SYSTem:LOCK:RELease) from the same I/O interface.
l Locks are handled at the I/O interface level (USB, LAN, etc.) and you are responsible for all coordination between
threads and/or programs on that interface.
l When a request is granted, only I/O sessions from the present interface will be allowed to change the state of the
instrument. You can only query the instrument state from other I/O interfaces.
l LAN sessions locks are automatically released when a LAN disconnect is detected.
l Granting a lock sets Bit 10 in the Standard Operation Register (STATus:OPERation:CONDition?).
SYSTem:SECurity:IMMediate
Sanitizes all user-accessible instrument memory. This command complies with requirements in chapter 8 of the
National Instrument Security Program Operating Manual (NISPOM).
Parameter Typical Return
(none) (none)
Sanitize all user-accessible instrument memory:
SYST:SEC:IMM
This command is recommended for customers, such as military contractors, who must
comply with NISPOM. Excessive use of this command may cause premature failure of
the flash memory.
This command destroys all user-defined state information, user-defined arbitrary wave-
forms, and user-defined I/O settings such as the IP address.
l Typically used before removing an instrument from a secure area.
l Initializes all instrument settings to their Factory Reset (*RST) values.
SYSTem:TIME <hh>, <mm>, <ss>
SYSTem:TIME?
Sets system clock time.
Parameter Typical Return
<hh> 0 to 23
<mm> 0 to 59
<ss> 0 to 60
20,15,30.000
Set system Time to 20:15:30 (8:15:30 PM)
SYST:TIM 20,15,30
l This time is used for file timestamps in the Mass Memory (MMEMory) system.
306 Agilent 33500 Series Operating and Service Guide
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