Network Operation and Remote Control
R&S
®
SMW200A
774User Manual 1175.6632.02 ─ 30
Remote control (SCPI)
●
A remote PC controls the instrument, usually via VISA (Virtual Instrument Software
Architecture) interfaces.
●
Remote control disables the manual operation of the instrument; you can set differ-
ent lock states.
●
The GUI is not visible.
●
Remote control commands (SCPI) perform the settings, either individually or in
sequences (SCPI programs).
●
Using SCPI programs is faster than the manual operation, since they automate
repeating applications.
Remote operation (VNC)
●
A remote device accesses the instrument via the common platform technology
VNC (Virtual Network Computing).
●
The protocol allows simultaneous operation from several remote devices and the
instrument nevertheless remains locally operable.
●
The GUI is visible.
●
To perform the settings, you can operate the instrument as with the manual control.
●
During remote operation via VNC, the direct control of the instrument is not dis-
abled.
You can control the instrument from the front panel and via the remote computer
alternately.
●
Clients supporting remote operation depend on the used remote device, see
Table 13-1.
●
How to: see Chapter 13.9, "Operating the R&S SMW Remotely via VNC",
on page 831.
Table 13-1: Supported VNC operation modes
Remote device VNC client Requirements Characteristics
Desktop
(Windows, Linux,
Mac
TM
OS)
●
Ultr@VNC
●
Other dedicated client soft-
ware
Ultr@VNC or Client Software
must be installed.
Fast, supports several options like
full screen mode or auto-login.
●
Any web browser
Java Runtime must be installed
and activated in the browser set-
tings.
Fast and convenient - only the
instrument address required.
Java runtime is sometimes con-
sidered as security concern.
●
Web browser with HTML5
Web sockets must be supported. Slower than the other modes.
No additional installation or acti-
vation required.
No security concern.
Smart device
(Tablet/ smartphone)
●
Dedicated client App
App must be installed. Fast, supports several options like
full screen mode or auto-login.
●
Web browser with HTML5
Web sockets must be supported. Support of QR code scanning
Slower than a dedicated App.
Overview of Remote Access Modes
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