LCX_UserManual_en_08_1.pdf - 第175页

Network operation and remote control R&S ® LCX Series 175 User Manual 1 179.2260.02 ─ 08 10.6.1.2 Accessing the R&S LCX over VNC Enabling the VNC service for remote access For remote access over VNC, you must con…

100%1 / 265
Network operation and remote control
R&S
®
LCX Series
174User Manual 1179.2260.02 ─ 08
●
You have established the correct interface address, see Section 10.2, "Remote
control interfaces and protocols", on page 151.
10.6.1 Controlling the R&S LCX over LAN
10.6.1.1 Using SCPI commands
Activating the LAN interface
The LAN interface is enabled automatically, when the connection is established and
the IP addresses are valid. To check the settings:
1. Press the [settings] key at the front panel.
2. In the device settings menu, select "Interfaces".
3. Select "Network".
4. Select "LAN".
5.
If turned off, enable "DHCP & Auto IP" .
The "LAN settings" dialog shows the current address configuration of the interface.
Starting a remote control session
To start remote control:
1. Send a command from the controller.
2. VXI-11 protocol (LAN or USB interface): Use &GTR interface message.
The instrument switches to remote control and executes the command.
On the screen, a status symbol indicates that remote control is active. The display
remains on and you can still operate it manually using the front panel controls.
Returning to manual operation
The instrument switches back to manual operation once you close the remote connec-
tion. You can also return to manual operation manually or with a remote command:
To return to manual control:
► VXI-11 protocol (LAN or USB interface): Use &GTL interface message.
The instrument switches to manual control.
Operating the R&S
LCX remotely
Network operation and remote control
R&S
®
LCX Series
175User Manual 1179.2260.02 ─ 08
10.6.1.2 Accessing the R&S LCX over VNC
Enabling the VNC service for remote access
For remote access over VNC, you must connect the controller PC and the R&S LCX in
a LAN, see "Establishing the LAN connection" on page 24.
To enable the service on the R&S LCX:
1. Press the [settings] key at the front panel.
2. In the device settings menu, select "Interfaces".
3. Select "Network".
4. Select "VNC".
5. If necessary, configure the VNC port address, see "Assigning the VNC port man-
ually" on page 170.
6.
Return to the "Network" settings menu.
7.
Turn
"VNC".
8. Select "LAN".
9.
Turn "DHCP & Auto IP".
The R&S LCX indicates the IP address that you can use for accessing the instru-
ment over a web application.
10. For accessing the instrument remotely, you have several options, see e.g.:
● Setting up a VNC remote access connection with a web browser
● Setting up a VNC connection with a dedicated desktop client
Setting up a VNC remote access connection with a web browser
Prerequisite: the controller PC and the R&S LCX are connected in a LAN, see "Estab-
lishing the LAN connection" on page 24.
To enable the VNC connection, follow the instructions as given under Enabling the
VNC service for remote access:
1. Open any web browser on the controller PC.
2. Enter the IP address of the R&S LCX in the URL address bar.
3. Confirm with enter.
The webpage of your LCR meter appears.
4. Select the "VNC Device Control".
The web based VNC client window opens and displays the front panel view of your
instrument.
In the status line at the bottom, you can see the port address.
Operating the R&S
LCX remotely
Network operation and remote control
R&S
®
LCX Series
176User Manual 1179.2260.02 ─ 08
Tip: If you want to configure a different port, enter the port and confirm with "Con-
nect".
5. To zoom the instrument view, select "Open in fullscreen".
The R&S LCX is ready for remote operation.
You can use all functions similar to manual operation. The operation works on the
touch-sensitive screen, and also when you select the keys of the front panel.
6. To operate the R&S LCX:
a) Select a parameter on the screen.
b) Enter the value using the on-screen keyboard.
c) Select a front panel key to activate the corresponding function.
d) Select the [rotary knob].
e) Drag the knob to the right or left to select a parameter, or to increase or
decrease a value, etc.
Setting up a VNC connection with a dedicated desktop client
Prerequisite: the controller PC and the R&S LCX are connected in a LAN, see "Estab-
lishing the LAN connection" on page 24.
The controller PC requires a dedicated VNC client application. The operating systems
Linux/Unix provide a build-in VNC client, but for Windows operating systems, you must
have installed a VNC client software on the controller PC.
Various free-of-charge applications are available for download on the Internet.
This example refers to an application on a Windows client.
To enable the VNC connection, follow the instructions given under Enabling the VNC
service for remote access:
1. To launch the VNC client application on the controller PC:
a) On the Internet, download a VNC client application, e.g. the Real VNC, see
https://www.realvnc.com.
b) Start the VNC client installation.
c) Select the VNC viewer component and follow the installation instructions.
d) When completed, confirm the installation.
2. Start the VNC client.
3. Enter the IP address of the R&S LCX in the address line.
The address string follows the syntax:
<ip address or hostname>[:port], e.g., //192.168.0.128:5678
Note: If you use a port number different from the default port 5900, you must add
this number to the IP address.
Note that when you reconnect, the changed port number is not retained, but reset
to default.
To save a connection with a different port, bookmark this page with the port number
contained in the address string.
Operating the R&S
LCX remotely