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IEEE-488 PROGRAMMING
NOTES:
1. If a mathematical
function
other than waveform is in
effect, the zero baseline measurement will be subtracted
from subsequent measurements after mathematical pro-
cessing is performed.
2. Sending 23 or 25 without
the m parameter will cause
the instrument
to use OV.
3. The level parameter is in volt units.
HP-85 Programming
Example-To
enable the zero mode,
type in the following
statements:
F:Ep,DTE ;w
,I ,,.I TF',.,T 709,; i i z1::.::' !
Note that the zero mode is enabled when the second state-
ment above is executed.
Model 8573 Programming
Example-Type
in the follow-
ing statements to demonstrate zero mode programming:
I..! 7,; = 1 (1: ALL I B s F: E 8:: B R 1, $3 :.; ! !..I :.I ::I
,:p,c,$z:L "z1::.::3 7 :,::<qi,. IE:,.,F:Ti:~,1,~4~.:1,~:P1D$::,
Note that the zero mode is enabled when the second state-
ment above is executed.
4.9.14 Input
Coupling
(I)
The input coupling commands, which are summarized
in
Table 4-20, select AC, DC, or ground coupling
modes that
are analogous to those found on an oscilloscope.
In this
manner, these command options operate in the same way
as the front panel CPLG key. More detailed information
on the coupling
modes may be found in paragraph
3.7.
Table 4-20. Input Coupling
Commands
Upon power up, or after a DCL or SDC command,
the
instrument
will be in a coupling
mode determined
b)
SETUP '1 (Al). Factory default is DC coupling.
HP-85
Programming
Example-Use
the
f~>llowing
statements to place the instrument
in the AC coupling
mode
Note that AC coupling
is selected when the srcund state-
ment above is executed.
Model 8573 Programming
ExampleJype
in the folknv-
ing lines in order to select AC input coupling:
Note that the AC coupling
mode is selected when the se-
cond statement above is executed.
4.9.15 Status
(U)
The status command allows access to information
concer-
ning instrument
operating
modes that are controlled
b)
other device-dependent
commands such as F (function)
and R (range). Additional
options of the status comm.md
allow access to data and error conditions,
and the pro-
grammed values associated with the zero value, delay (W),
number of samples, (N), rate (S), and trigger level (T).
4-35
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