Network and Remote Operation
R&S
®
FSVA3000/ R&S
®
FSV3000
652
User Manual 1178.8520.02 ─ 01
Universal Commands
Universal commands are encoded in the range 10 through 1F hex. They affect all
instruments connected to the bus and do not require addressing.
Command
Effect on the instrument
DCL (Device Clear)
Aborts the processing of the commands just received and sets the com-
mand processing software to a defined initial state. Does not change the
instrument settings.
IFC (Interface Clear) *)
Resets the interfaces to the default setting.
LLO (Local Lockout)
The "Local" softkey is disabled. Manual operation is no longer available
until
GTL
is executed.
SPE (Serial Poll Enable)
Ready for serial poll.
SPD (Serial Poll Disable)
End of serial poll.
PPU (Parallel Poll Unconfig-
ure)
End of the parallel-poll state.
*) IFC is not a real universal command, it is sent via a separate line; however, it also affects all instruments
connected to the bus and does not require addressing
Addressed Commands
Addressed commands are encoded in the range 00 through 0F hex. They only affect
instruments addressed as listeners.
Command
Effect on the instrument
GET (Group Execute Trigger)
Triggers a previously active instrument 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)
Transition to the "local" state (manual control).
GTR (Go to Remote)
Transition to the "remote" state (remote control).
PPC (Parallel Poll Configure)
Configures the instrument for parallel poll.
SDC (Selected Device Clear)
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.
13.1.1.3
USB Interface
For remote control via the USB connection, the PC and the instrument must be con-
nected via the USB type B interface. A USB connection requires the VISA library to be
installed. VISA detects and configures the R&S instrument automatically when the
USB connection is established. You do not have to enter an address string or install a
separate driver.
USB address
The used USB address string is:
Remote Control Basics