Tektronix CMD 80, User Manual

Page: 380 / 672

Appendix E: Remote Control Commands
E–2
CMD 80 Digital Radiocommunication Tester User Manual
The root or first keyword of a command indicates to which instrument system or
command group the command belongs. The areas of the instrument controlled by
commands beginning with different keywords are as follows:
H
Commands beginning with ‘*’ that do not follow the model of keywords
with ‘:’ separators are commands required by IEEE 488.2 and by SCPI.
H
Commands beginning with CONFigure configure the instrument and tests
that the tester can perform. Configuration includes both setting of test
conditions, such as source levels, and setting of limits for acceptable test
results.
H
The command beginning with DISPlay affects what is shown on the
front-panel display.
H
Queries beginning with FETCh return data without performing a new
measurement. A new measurement is not needed in two cases: when the
data is always available without performing a measurement and when the
data is from a previous measurement that started with a READ query. If the
second keyword of the query is [:SCALar], the returned data consists of
either one item or of several different items. If the second keyword is
ARRay, the returned data consists of an array of items of the same type.
H
Commands beginning with MMEMory are associated with storage and recall
of instrument settings.
H
Commands beginning with PROCedure cause the tester and/or the mobile
station under test to change states. No tests are performed and no data is
returned.
H
Queries beginning with READ perform predefined tests on the tester and
return results after the test is complete. Queries ending with the keyword
[:ALL] return more than one data item; other queries return only one data
item. For some tests, additional data can be returned with a FETCh query.
H
Commands beginning with ROUTe control which of the signal inputs and
outputs on the tester front panel are used to connect to the mobile station
under test.
H
Commands beginning with SENSe affect settings associated with the input
signals to the tester.
H
Commands beginning with SOURce affect settings associated with the
output signals from the tester.
H
Commands beginning with STATus report the internal condition of the tester
and determine which error conditions are reported.
H
Commands beginning with SYStem control miscellaneous items in the
instrument that are unrelated to the measurements made.