Command Reference
R&S
®
ZNL/ZNLE
562
User Manual 1178.5966.02 ─ 07
digits indicate the length to be 5168 bytes. The data bytes follow. During the transmis-
sion of these data bytes all End or other control signs are ignored until all bytes are
transmitted.
A #0 combination introduces a data block of indefinite length. The use of the indefinite
format requires a NL^END message to terminate the data block. This format is useful
when the length of the transmission is not known or if speed or other considerations
prevent segmentation of the data into blocks of definite length.
10.4.2
Basic Remote Control Concepts
The GUI and the remote control command set both aim at maximum operating conven-
ience. In manual control this generally means that the control elements are easy to find
and intuitive to handle, and that the effect of each operation is easy to verify on the
screen. Convenient remote control operation depends on a simple and systematic pro-
gram syntax and on a predictable instrument state; the display of results is secondary.
These differences suggest the peculiarities in the analyzer's remote control concept
discussed in the following sections.
10.4.2.1
Traces, Channels, and Diagram Areas
Like in manual control, traces can be assigned to a channel and displayed in diagram
areas (see section Traces, Channels and Diagram Areas in Chapter 3). There are two
main differences between manual and remote control:
●
A trace can be created without being displayed on the screen.
●
A channel must not necessarily contain a trace. Channel and trace configurations
are independent of each other.
The following frequently used commands create and delete traces, channels, and dia-
gram areas:
Create new trace and new channel
(if channel
<Ch>
does not exist yet)
CALCulate<Ch>:PARameter:SDEFine
'<Trace Name>'
,
'< Meas Parameter>
Delete trace
CALCulate<Ch>:PARameter:DELete '<Trace
Name>'
Create or delete channel
CONFigure:CHANnel<Ch>[:STATe] ON | OFF
Create or delete diagram area
DISPlay:WINDow<Wnd>:STATe ON | OFF
Display trace in diagram area
DISPlay:WINDow<Wnd>:TRACe<WndTr>:FEED
The assignment between traces, channels, and diagram areas is defined via numeric
suffixes as illustrated in the following example:
VNA Remote Control Basics
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