Format.data - Keithley 2450 Reference Manual

Section 8: TSP command reference

format.data

This attribute sets the data format for data that is printed using the printnumber() and printbuffer()
functions.
Type TSP-Link accessible
Attribute (RW) No
Usage
value = format.data
format.data = value
value
Details
You can control the precision of numeric values with the format.asciiprecision attribute. If
format.REAL32 or format.REAL64 is selected, you can select the byte order with the format.byteorder
attribute.
The IEEE Std 754 binary formats use four bytes for single-precision values and eight bytes for double-precision
values.
When data is written with any of the binary formats, the response message starts with "#0" and ends with a new
line. When data is written with the ASCII format, elements are separated with a comma and space.
Example
format.asciiprecision = 10
x = 3.14159265
format.data = format.ASCII
printnumber(x)
format.data = format.REAL64
printnumber(x)
Also see
format.asciiprecision
format.byteorder
printbuffer() (on page 8-78)
printnumber()
8-64
Affected by
Restore configuration
Instrument reset
Power cycle
The format to use for data, set to one of the following values:
ASCII format: format.ASCII
•
Single-precision IEEE Std 754 binary format: format.REAL32
•
Double-precision IEEE Std 754 binary format: format.REAL64
•
(on page 8-62)
(on page 8-63)
(on page 8-81)
Model 2450 Interactive SourceMeter® Instrument Reference Manual
Where saved
Configuration script
Output a number represented by x in ASCII
using a precision of 10, then output the
same number in binary using double
precision format.
Output:
3.141592650e+00
#0ñÔÈSû!
Default value
format.ASCII
@
2450-901-01 Rev. B/September 2013