User Manual

Remote Control
R&S
®
FPC
249User Manual 1178.4130.02 ─ 05
Example: //Select video bandwidth
BAND:VID 10KHZ
[SENSe:]BWIDth:VIDeo:AUTO <State>
[SENSe:]BANDwidth:VIDeo:AUTO <State>
This command turns automatic selection of the resolution bandwidth on and off.
Effects of this command
●
Turn on automatic VBW selection to couple the VBW to the RBW.
When you turn off automatic selection of the video bandwidth, you can select one man-
ually with [SENSe:]BANDwidth:VIDeo.
Parameters:
<State> ON | OFF | 1 | 0
*RST: ON | 1
Example: //Select VBW manually
BAND:VID:AUTO OFF
BAND:VID 10HZ
17.12.5 Sweep Control
ABORt.......................................................................................................................... 249
[SENSe:]SWEep:TIME................................................................................................... 250
[SENSe:]SWEep:TIME:AUTO......................................................................................... 250
INITiate:CONTinuous......................................................................................................250
INITiate[:IMMediate]....................................................................................................... 251
ABORt
This command aborts a measurement and resets the trigger system.
To prevent overlapping execution of the subsequent command before the measure-
ment has been aborted successfully, use the *OPC? or *WAI command after ABORt
and before the next command.
Note on blocked remote control programs
If a sequential command cannot be completed, for example because a triggered sweep
never receives a trigger, the remote control program will never finish and the remote
channel to the R&S FPC is blocked for further commands. In this case, you must inter-
rupt processing on the remote channel first in order to abort the measurement.
To do so, send a "Device Clear" command from the control instrument to the R&S FPC
on a parallel channel to clear all currently active remote channels. Depending on the
used interface and protocol, send the following commands
●
Visa:viClear()
Now you can send the ABORt command on the remote channel performing the mea-
surement.
Remote Commands of the Spectrum Application