Series 2600 System SourceMeters Reference Manual Instrument Control Library 12-45
Return to Section 12 topics 2600S-901-01 Rev. A / May 2006
format.data
Attribute The data format for data printed using the printnumber and printbuffer functions.
Usage
fmt = format.data -- Reads data format.
format.data = fmt -- Writes data format.
Set fmt to one of the following values:
1 or format.ASCII ASCII format.
2 or format.SREAL Single precision IEEE-754 binary format.
2 or format.REAL32 Single precision IEEE-754 binary format.
3 or format.REAL Double precision IEEE-754 binary format.
3 or format.REAL64 Double precision IEEE-754 binary format.
Remarks
• This attribute selects the data format used to print data values with the
printnumber and printbuffer functions.
• The precision of the ASCII format can be controlled with the format.asciiprecision
attribute. The byte order of SREAL, REAL, REAL32, and REAL64 can be selected
with the
format.byteorder attribute.
• REAL32 and SREAL select the same single precision format. REAL and REAL64
select the same double precision format. They are alternative identifiers. Selecting
which to use is a matter of preference.
• The IEEE-754 binary formats use 4 bytes each for single precision values and 8
bytes each for double precision values.
• When data is written with any of the binary formats, the response message will start
with “#0” and end with a new line. When data is written with the ASCII format,
elements will be separated with a comma and space.
Also see format.asciiprecision, format.byteorder, printbuffer, printnumber
Example Selects the ASCII data format:
format.data = format.ASCII
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