Software Installation and Configuration 2
L4400 User’s Guide 27
Figure 2-11. Selecting an Instrument and Starting Interactive IO.
Identifying the Instruments
L4400 series instruments are comprised of the carrier, the instrument
sub- assembly, and on selected instruments, a wiring terminal block. The
carrier and instrument sub- assembly have separate serial numbers and
separate firmware revisions. The commands used to query these parameters
are:
• *IDN? (returns the carrier serial number and firmware revision)
• SYSTem:CTYPe? 1 (returns the instrument sub- assembly serial
number and firmware revision)
• SYSTem:CDEScription? 1 (returns the instrument description.)
These commands can be executed from the Interactive IO window. Examples
of the information returned by each command are as follows:
Select (highlight) instrument
Select Interactive IO