Rohde & Schwarz SMW200A - Setting up a Remote Control Connection over USB

Network Operation and Remote Control
R&S
®
SMW200A
741User Manual 1175.6632.02 ─ 16
Risk of losing network connection
Since a factory preset resets the remote access and network settings to the default val-
ues, executing factory preset via remote control terminates the connection to the
instrument, if these settings had been configured to values different to the default ones!
12.8.5 Setting Up a Remote Control Connection over USB
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.
Starting a remote control session over USB
1. Connect instrument and controller using USB cable and switch them on.
2. Execute the following commands on the controller:
a) Open the port to the instrument
viOpen (..., "USB::0x0AAD::0x0092::100001::INSTR", ...)
b) Reset the instrument
viRST (generator%, "*RST;*CLS")
c) Set 2 GHz frequency
viPrintf (..., "SOUR:FREQ 2GHz\n")
d) Set 20 dBm output level
viPrintf (..., "SOUR:POW -20dBm\n")
The RF frequency and signal level of the instrument are changed.
3. To return to manual operation, press the LOCAL key.
12.9 Tracing SCPI Commands and Messages Exchanged
via the LXI Web Browser Interface
The remote trace functionality allows you to trace commands and messages
exchanged via a remote control interface of the R&S SMW.
To activate the SCPI remote trace:
1. Start a web browser that supports html5 (W3C compliant).
2. Enter the IP address of the R&S SMW in the browser's address bar.
The R&S SMW's welcome page is displayed.
3. In the navigation pane, select "Diagnostics > SCPI Remote Trace".
Tracing SCPI Commands and Messages Exchanged via the LXI Web Browser Interface