Keysight Technologies 3458A Guide D'utilisation page 140

4 Making Measurements
Reading Formats
This section discusses the ASCII, single integer (SINT), double integer (DINT).
single real (SREAL), and double real (DREAL) formats that can be used for storing
readings or for outputting readings on the GPIB. Storing readings in memory is
described later in this chapter under
on the GPIB is discussed later in this chapter under
Bus.
ASCII
The ASCII format is 15 bytes per reading encoded in scientific notation in standard
units of volts, amps, ohms, hertz, or seconds as follows:
SD.DDDDDDDDESDD
Where:
S = sign (+ or -)
D = 0-9
E = delimiter between mantissa and base 10 exponent
Single and double integer
The single integer (SINT) format has 2 bytes per reading and the double integer
(DINT) format has 4 bytes per reading. Both formats use two's complement
coding.
When using the SINT or DINT memory/output format, the multimeter applies a
NOTE
scale factor to the readings. The scale factor is based on the multimeter's
measurements function, range, A/D converter setup, and enabled math
operations. You should not use the SINT or DINT format for frequency or period
measurements; when a real-time or post-process math operation is enabled
(except STAT or PFAIL); or when autorange is enabled.
140
Using Reading Memory; outputting readings
Sending Readings Across the
Keysight 3458A User's Guide