Format[:Data] - HP E1419A User Manual

FORMat
NOTE
Usage

FORMat[:DATA]?

Comments
234 HP E1419 Command Reference
*TST? leaves the instrument in its power-on reset state. This means that the ASC,7
data format is set even if you had it set to something else before executing *TST?. If
you need to read the FIFO for test information, set the format after *TST? and
before reading the FIFO.
•
Related Commands: [SENSe:]DATA:FIFO:...?, [SENSe:]DATA:CVTable?,
MEMory subsystem, and FETCh?, Also see how DIAG:IEEE can modify
REAL,32 returned values.
•
*RST Condition: ASCII, 7
•
After *RST/Power-on, each channel location in the CVT contains the IEEE-754
value "Not-a-number" (NaN). Channel readings which are a positive overvoltage
return IEEE +INF and a negative overvoltage return IEEE -INF. The NaN, +INF,
and -INF values for each format are shown in the following table.
Format IEEE Term Value
ASCii +INF
-INF
NaN
REAL,32 +INF
-INF
NaN
REAL,64 +INF
-INF
NaN
PACKed,64 +INF
-INF
NaN
FORMAT REAL
FORM REAL, 64
FORMAT ASCII, 7
FORMat[:DATA]? returns the currently set response data format for readings.
•
Returned Value: Returns REAL, +32 | REAL, +64 | PACK, +64 | ASC, +7. The
C-SCPI type is string, int16.
+9.9E37
-9.9E37
+9.91E37
7F800000
16
FF800000
16
7FFFFFFF
16
7FF000...00
16
FFF000...00
16
7FFF...FF
16
47D2 9EAD 3677 AF6F
16
(+9.0E37 )
10
C7D2 9EAD 3677 AF6F
16
(-9.0E37 )
10
47D2 A37D CED4 6143
16
(+9.91E37 )
10
Set format to IEEE 32-bit Floating Point
Set format to IEEE 64-bit Floating Point
Set format to 7-bit ASCII
Meaning
Positive Overload
Negative Overload
No Reading
Positive Overload
Negative Overload
No Reading
Positive Overload
Negative Overload
No Reading
Positive Overload
Negative Overload
No Reading
Chapter 6