Rohde & Schwarz ZNB20, User Manual

Page: 747 / 1332

Command Reference
R&S
®
ZNB/ZNBT
732 User Manual 1173.9163.02 ─ 38
Note that in contrast to commands addressing a single limit line segment
<Seg>
(such
as
CALCulate<Chn>:LIMit:SEGMent<Seg>:TYPE
), these commands assume
that
●
lower limit line segments are assigned even numbers (
<Seg> = 2,4,6,...
) and
●
upper limit line segments are assigned odd numbers (
<Seg> = 1,3,5,...
).
CALCulate<Chn>:LIMit:LOWer/UPPer
sets the type and response values of
even/odd limit line segments and gets the response values of even/odd limit line seg-
ments - no matter what the current type of these segments actually is!
Both commands will only work, if the total number of limit line segments is even.
Rules for creating and updating segments
Suppose that the active trace is equipped with 2s limit line segments (of any type) and
k pairs of response values are passed with the command.
●
CALCulate:LIMit:LOWer
– deletes "obsolete" limit line segments 2k+1, ..., 2s
– updates even limit line segments 2, 4, ..., 2s with type=lower and the given
response values
– creates lower limit line segments 2s+2, 2s+4, ..., 2k with (type=lower and) the
given response values
– creates "missing" upper limit line segments 2s+1, 2s+3, ..., 2k-1 with
(type=upper and) default response values
●
CALCulate:LIMit:UPPer
– deletes "obsolete" limit line segments 2k+1, ..., 2s
– updates odd limit line segments 1, 3, ..., 2s-1 with type=upper and the given
response values
– creates upper limit line segments 2s+1, 2s+3, ..., 2k-1 with (type=upper and)
the given response values
– creates "missing" lower limit line segments 2s+2, 2s+4, ..., 2k with (type=lower
and) default response values
If s>0, newly created lower/upper limit line segments inherit their start and stop stimuli
from the limit line segment with the highest even/odd number. Otherwise their stimulus
range is set to the entire sweep range.
See
CALCulate<Chn>:LIMit:CONTrol[:DATA]
on how to change the stimulus
values of a limit line segment.
Suffix:
<Chn>
.
Channel number used to identify the active trace
SCPI Command Reference