Annexes
R&S
®
ZNA
1423
User Manual 1178.6462.02 ─ 12
Command
QuickBASIC com-
mand
Effect on the instrument
SPD
(Serial Poll Dis-
able)
IBCMD (controller
%, CHR$(25))
End of serial poll
PPU
(Parallel Poll
Unconfigure)
IBCMD (controller
%, CHR$(21))
End of the parallel-poll state
Addressed commands
Addressed commands are encoded in the range 00 through 0F hex. They are only
effective 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.
11.3.3.3
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.
Structure and syntax of the instrument messages are described in
on page 750. The chapter also provides a detailed description of all
messages implemented by the analyzer.
11.4
Maintenance
The R&S
ZNA vector network analyzer does not require any special maintenance.
For our support center address and a list of useful R&S contact addresses, refer to the
"Contact" page at the beginning of the Help system.
Maintenance
