Agilent Technologies ESA-E Series Programmer's Manual page 307

Language Reference
SYSTem Subsyste m
Sets the date of the real-time clock of the instrument .
Year is a 4-digit integer
Month is an integer 1 to 1 2
Day is an integer 1 to 31 (depending on the month )
Front Panel
Access :
System, Time/Date, Set Date
Error Information Query
:
SYSTem :ERRor [ :NEXT] ?
This command queries the earliest entry to the error queue and the n
deletes that entry. *CLS clears the entire error queue.
Front Panel
Access :
System, Show Errors
Host Identification Query
:
SYSTem : HID ?
This command returns a string that contains the host identification .
This ID is required in order to obtain the license key that enables a ne w
application or option .
Front Panel
Access :
System, Show Syste m
License Key - Install Application/Optio n
:SYSTem:LKEY <"option">, <" license key">
:SYSTem:LKEY? <"option" >
This command enters the license key required for installing th e
specified new application or option . The query returns a string tha t
contains the license key for a specified application or option that i s
already installed in the instrument . The license key will also b e
returned if the application is not currently in memory, but had bee n
installed at some previous time .
Example :
:SYST :LKEY "BAC", "123A456B789C "
Remarks : An option is a three character string that specifies th e
option or application that is to be installed, as found in
the Ordering Guide (for example, BAH for GSM
Measurement Personality). The option name must be
enclosed in quotes.
Chapter 5 5-147