HP 8753E Programming And Command Reference Manual page 145

These 5 commands output the raw measurement data. Normally, array 1
holds the current parameter. If a 2-port calibration is active, the arrays
hold Sll, S21, S12, and S22, respectively:
HP-IB Programming and Command Reference Guide
Fast data transfer command for
Array 1 (Sll data).
Array 2 (S21 data).
Array 3 (S12 data).
Array 4 (S22 data).
Outputs the external source RF frequency.
The instrument must be in external
source mode, using either INSMEXSA or
INSMEXSM.
Outputs the segment number and it's limit
test status for all active segments.
Outputs the limit test min/max for all
segments. Outputs the segment number,
max stimulus, max value, min stimulus,
min value for all active segments.
Outputs the limit test status for a specified
segment. See SELSEG[D].
Outputs limit test min/max for a specified
segment. See SELSEG[D].
Outputs I's sequence listing. Range: 1 to
6.
Outputs the serial number of the analyzer.
Outputs the status byte.
Outputs the display title.
IFBIHIGH and IFBILOW tests.
4.
Range: 0 to