![Rohde & Schwarz CMW500 Series User Manual Download Page 276](http://html1.mh-extra.com/html/rohde-and-schwarz/cmw500-series/cmw500-series_user-manual_1477718276.webp)
Annexes
R&S
®
CMW500
276
User Manual 1173.9463.02 ─ 02
Addressed commands
Addressed commands are encoded in the range 00 through 0F hex. They are only effec-
tive for instruments addressed as listeners.
Command
QuickBASIC com-
mand
Effect on the instrument
GET
(Group Execute
Trigger)
IBTRG (device%)
Triggers a previously active device function (e.g. a sweep). The
effect of the command is the same as with that of a pulse at the
external trigger signal input.
GTL
(Go to Local)
IBLOC (device%)
Transition to the "Local" state (manual control).
PPC
(Parallel Poll Con-
figure)
IBPPC (device%,
data%)
Configures the instrument for parallel poll. Additionally, the
QuickBASIC command executes PPE/PPD.
SDC
(Selected Device
Clear)
IBCLR (device%)
Aborts the processing of the commands just received and sets
the command processing software to a defined initial state. Does
not change the instrument setting.
8.1.3.3
Instrument Messages
Instrument messages (commands) are transferred on the data lines of the GPIB bus while
the ATN line is not active. ASCII code is used.
For structure and syntax of the instrument messages refer to
chapter also provides a detailed description of all messages implemented by the tester.
8.2 Comparison with R&S CMU
The R&S CMW500 and the R&S CMU 200 have part of their functionality in common.
The enhanced flexibility of the R&S CMW500 entails a different SCPI command structure,
so that it is not possible to migrate remote program scripts without prior modification.
The following sections give hints for the transcription of R&S CMU 200 programs for use
on the R&S CMW500. Please note the additional hints for program upgrades in order
make full use of the measurement functionality of your R&S CMW500.
8.2.1 Segmentation, Addressing and Resource Management
The R&S CMU and the R&S CMW500 both use a modular concept, with the instrument
functions grouped together in various "function groups" or "firmware applications". The
chief difference between the instruments is that R&S CMW500 does not use secondary
addressing.
Comparison with R&S CMU