Data (U2) Status Word Format - Keithley 194 Instruction Manual

IEEE-488 PROGRAMMING
Figure 4-11. Data (U2) Status Word Format
The bits in the data condition word include:
Buffer Full-Set when all 100 readings have been stored
in the reading buffer. Cleared when at least one buffer
reading has been accessed.
Buffer One-half Full-Set when at least 50 readings have
been stored in the reading buffer. Cleared when less than
50 readings are left to access.
Plotter Done-Set when the data plotted with the XY mode
has been completed.
A/D Converter Armed-Set when the A/D converter is
armed and ready to take a measurement. Cleared when
the A/D converter is not armed.
8116 Bit Mode-Indicates whether the A/D converter for
the selected channel is in the 8- or l&bit mode (0=8 bit;
l=l6-bit)
NOTE
A buffer-full, one-half full, and plotter done, con-
dition is also flagged by the data condition bit of
the serial poll byte and the unit can be pro-
grammed to generate an SRQ. See paragraph
4.9.16.
These command options allow you to xcess the pro-
grammed parameters for the zero(Z), d&y(W), number
of samples (N), and sample rate (S). Figure 4-12 suns-
marizes the formats of the returned values.
Programmed Value Status (U3-U8)
4-39