Operating the Power Supply Remotely
4
Series N8700 User’s Guide
59
Using Telnet
In an MS-DOS Command Prompt box type:
telnet hostname 5024
where
hostname
is the N8700 hostname or IP address, and 5024 is
the instrument’s telnet port.
You should get a Telnet session box with a title indicating that you
are connected to the power supply. Type the SCPI commands at the
prompt.
Using Sockets
Keysight instruments have standardized on using port 5025 for SCPI
socket services. A
data socket
on this port can be used to send and
receive ASCII/SCPI commands, queries, and query responses. All
commands must be terminated with a newline for the message to be
parsed. All query responses will also be terminated with a newline.
The power supply allows any combination of up to three
simultaneous data socket and telnet connections to be made.
The socket programming interface also allows a
control socket
connection. The control socket can be used by a client to send device
clear and to receive service requests. Unlike the data socket, which
uses a fixed port number, the port number for a control socket varies
and must be obtained by sending the following SCPI query to the data
socket: SYSTem:COMMunicate:TCPip:CONTrol?
After the control port number is obtained, a control socket
connection can be opened. As with the data socket, all commands to
the control socket must be terminated with a newline. All query
responses will also be terminated with a newline.
To send a device clear, send the string “DCL” to the control socket.
When the power supply has finished performing the device clear it
echoes the string “DCL” back to the control socket.
