Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 626 / 813

INSTrument... R&S
®
ZVA/ZVB/ZVT
1145.1084.12 6.164 E-6
Example:
INP2:ATT 10
Set the step attenuator for the wave received at port 2 and for all
channels to 10 dB. The waves at the other test ports are not
affected.
INSTrument...
This subsystem identifies and selects particular resources (SCPI: logical instruments) of the analyzer.
INSTrument:NSELect <Ch>
Selects a channel <Ch> as the active channel.
<Ch> Number of the channel to be activated. The channel must be created
before using
CONFigure:CHANnel<Ch>:STATe ON
.
Range [def.
unit]
1, 2, ... [–]
*RST value 1
SCPI,
Command
Types Confirmed, command or query. If all channels have been deleted
CONFigure:CHANnel<Ch>:STATe OFF
the query returns 0.
Example:
CONF:CHAN2:STAT ON; INST:NSEL?
Create channel no. 2 and select it as the active
channel. The query returns 2.
INSTrument:PORT:COUNt?
Returns the number of test ports of the analyzer.
Response Number of ports (integer number).
Range [def. unit] 1, 2, 3 or 4, depending on the analyzer model.
*RST value –
SCPI, Command Types Device-specific, query only.
Example:
INP:PORT:COUN?