Specifications

·
The format of values returned is set using the FORMat[:DATA] command.
·
Returned Value: ASCII values are returned in the form ±1.234567E±123. For
example 13.325 volts would be +1.3325000E+001. Each value is followed by a
comma (,). A line feed (LF) and End-Or-Identify (EOI) follow the last value. The
C-SCPI data type is a string array.
REAL 32, REAL 64 and PACK 64, values are returned in the IEEE-488.2-1987
Indefinite Length Arbitrary Block Data format. This data return format is explained in
“Arbitrary Block Program Data” on page 180 of this chapter. For REAL 32, each
valueis4bytesinlength(theC-SCPIdatatypeisafloat32 array). For REAL 64 and
PACK 64, each value is 8 bytes in length (the C-SCPI data type is a float64 array).
NOTE Algorithm values which are a positive overvoltage return IEEE +INF and a negative
overvoltage return IEEE -INF (see table on page 230 for actual values for each data
format).
·
Related Commands: SENSE:DATA:FIFO:HALF?, FORMAT:DATA
·
*RST Condition: FIFO is empty
Usage DATA:FIFO? return all FIFO values until measurements complete
and FIFO empty
Command
Sequence
set up scan lists and trigger
SENSE:DATA:FIFO:ALL?
now execute read statement read statement does not complete until triggered
measurements are complete and FIFO is empty
[SENSe:]DATA:FIFO:COUNt?
[SENSe:]DATA:FIFO:COUNt? returns the number of values currently in the
FIFO buffer.
Comments
·
DATA:FIFO:COUNT? is used to determine the number of values to acquire with
the DATA:FIFO:PART? command.
·
Returned Value: Numeric 0 through 65,024. The C-SCPI type is int32.
·
Related Commands: DATA:FIFO:PART?
·
*RST Condition: FIFO empty
Usage DATA:FIFO:COUNT? Check the number of values in the FIFO buffer
VT1419A Command Reference
[SENSe]
262 Chapter 6
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