Agilent Technologies N6700 User Manual and Programming Guide - Getting Started

3 Getting Started

	Using Telnet
	In an MS-DOS Command Prompt box type: telnet hostname 5024
	where hostname is the N6700 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 system. Type the SCPI commands at the
	prompt.
	Using Sockets
	Power system mainframes with firmware revision C.00.00 and up installed allow
NOTE
	any combination of up to four simultaneous data socket, control socket, and
	telnet connections to be made.
	Agilent 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 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 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, and all query responses returned
	on the control socket will be terminated with a newline.
	To send a device clear, send the string “DCL” to the control socket.
	When the power system has finished performing the device clear it
	echoes the string “DCL” back to the control socket.
	Service requests are enabled for control sockets using the Service
	Request Enable register. Once service requests have been enabled,
	the client program listens on the control connection. When SRQ goes
	true the instrument will send the string “SRQ +nn” to the client. The
	“nn” is the status byte value, which the client can use to determine
	the source of the service request.

48 Series N6700 User’s Guide