Publication No. 980935 Rev. A
3152B User Manual
EADS North America Test and Services
Programming Reference 5-7
Legacy vs.
Modern
Command Set
For users of the 3151B or 3152B models, the instrument defaults to
legacy 3152A-compatible mode. The SCPI commands that are
shown in Table 5-1 list the legacy 3152A command set and indicate
where the 3152B command differs. Notice, however, that the
FORM:INST MOD command can be used to enable the additional
functionality that was built into the new 3152B. With emulation
disabled, note that some of the legacy emulation features will no
longer be available until legacy emulation mode (FORM:INST LEG)
is restored.
CAUTION
Due to some differences in waveform resolution and
size, waveforms can not be shared across the legacy
and modern options. Therefore, using the FORM:INST
(LEG | MOD ) command is not recommended before the
consequences to your application are understood
In general the legacy 3152B mode modifies modern 3152B
performance in the following major areas:
•
Maximum sample clock frequency is reduced to 100 MS/s;
•
Waveform interlace is set to 2;
•
Minimum waveform length is set to 10; and
•
Vertical resolution of arbitrary waveforms is reduced to 12 bits.
If you purchase the 3152B, you most likely want to use 3152A
legacy code and, therefore, the instrument defaults to legacy 3152A
compatible mode with the above limitations built into the code. The
3100M-3152B and the 3100R-3152B versions default to a different
set of values to allow full performance of the generator; The
commands needed to use the full performance of the 3152B are
summarized in Table 5-2.
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