Data Encoding For Large Data Transfers - Agilent Technologies 8712ET Programmer's Manual

CAUTION
Data Types and Encoding

Data Encoding for Large Data Transfers

Data Encoding for Large Data Transfers
The FORMat:DATA command selects the type of data and the type of data
encoding that is used to transfer large blocks of numeric data between
the analyzer and a controller. There are two block specifiers and one
numeric data type specifier:
specifies the block data type. Either the definite or
REAL
indefinite length syntax can be used. The block is
transferred as a series of binary-encoded floating-point
numbers. Data transfers of the REAL,64 data type are
demonstrated in the REALDATA example program.
specifies the block data type. Either the definite or
INTeger
indefinite length syntax can be used. The block is
transferred as an array of binary-encoded data with
each point represented by a set of four 16-bit integers.
This is the instrument's internal format — it should
only be used for data that will be returned to the
instrument for later use. Data transfers of the
INTeger 16 data type are demonstrated in the
INTDATA and LOADCALS example programs.
specifies the numeric data type (NR1, NR2 or NR3
ASCii
syntax). The data is transferred as a series of
ASCII-encoded numbers separated by commas. ASCii
formatted data transfers are demonstrated in the
ASCDATA example program.
Blocks that contain mixed data — both numbers and ASCII characters
— ignore the setting of FORMat:DATA. These blocks always transfer as
either definite length or indefinite length block data. The following
commands transfer blocks of mixed data:
PROGram[:SELected]:DEFine
SYSTem:SET
INTeger 16 data for the Agilent 8711/12/13/14/ A-, B-, and C-series
instruments is represented by sets of three 16-bit integers. The
Agilent 8712ET/ES and 8714ET/ES instruments use sets of four 16-bit
integers.
4-6 Programmer's Guide