Figure 10-1 Ieee 488.2 Arbitrary Block Program Data Format; System:help:headers - Agilent Technologies U2000 Series Manual

10 SYSTem Subsystem

SYSTem:HELP:HEADers?

This query returns a list of all SCPI commands supported by the instrument.
Data is returned in IEEE 488.2 arbitrary block program data format as shown
in

Figure 10-1 IEEE 488.2 Arbitrary Block Program Data Format

Each point in the trace is represented as an IEEE 754 32 bit floating point
number, made up of four bytes in the data block. The MS byte is transmitted
first. Each complete block is terminated by a line feed.
Commands are listed in alphabetical order.
Syntax
Example
SYST:HELP:HEAD?
256
Figure 10- 1 below.
#xyyy..yddd................ddd<LF>
The number of data bytes (d)
contained in the block.
The number of y digits
Signifies the start of the block
Example: if there are 12435 data bytes, y = 12435 and x = 5
:HELP
SYST
?
:HEAD
This command returns the SCPI
commands supported by the instrument.
Line feed character
signifies the end of the block
Data bytes
U2000 Series Programming Guide