Remote Control Over Lan Using Socket Communication - R&S SMB100A Operating Manual

®
R&S SMB100A
The instrument response is 4000000000, i.e. the frequency is returned in Hz.
While remote control is active, the "Remote" icon in the status bar indicates that the
instrument is in remote control mode. The operation via the front panel or via
mouse and keyboard are locked, allowing a remote control program to be per-
formed without interruption.
On the display, keys and entry fields are grayed out and cannot be activated or
modified, but you can still open dialogs, for example to verify settings.
5. To disable the access to the dialogs, use the command SYST:KLOC ON.
6. To prevent unintentional return to manual operation, use the command &LLO.
See also
The instrument switches to "Remote LLO" state. The LOCAL key is disabled.
7. To enable the LOCAL key, use the command &GTR.
8. To return to manual operation, see
tion",
Tip: Switching from manual operation to remote control and vice versa does not
affect the other instrument settings.
6.2.3.3

Remote Control over LAN using Socket Communication

This chapter provides an example on how to establish a remote control connection
over telnet protocol and a simple sockets-based program example that can be further
developed.
Setting up a Telnet Connection
To control the software, only a telnet program is required. The telnet program is part of
every operating system.
1. To establish a Telnet connection with the R&S SMB, start the telnet program.
2. Enter the access string to connect to the instrument and confirm with ENTER.
The access string is composed of the open command short form) and the socket
address. The socket address is a combination of the IP address or the host name
of the R&S SMB and the number of the port configured for remote-control via tel-
net. The R&S SMB uses the port number 5025 for remote connection via Telnet.
Example: o 10.113.1.150 5025
Operating Manual 1407.0806.32 ─ 21
Chapter 6.1.3.4, "LAN Interface
on page 245.
Remote Control Basics
Starting a Remote Control Session
Messages", on page 240.
Chapter 6.2.2, "Returning to Manual Opera-
251