Keithley 2651A Reference Manual page 670

Section 7: Command reference
Usage
connectionID = tspnet.connect(ipAddress)
connectionID = tspnet.connect(ipAddress, portNumber, initString)
connectionID
ipAddress
portNumber
initString
Details
This command connects a device to another device through the LAN interface. The default port number is 5025.
If the portNumber is 23, the interface uses the Telnet protocol and sets appropriate termination characters to
communicate with the device.
If a portNumber and initString are provided, it is assumed that the remote device is not TSP-enabled. The
Model 2651A does not perform any extra processing, prompt handling, error handling, or sending of commands.
Additionally, the tspnet.tsp.* commands cannot be used on devices that are not TSP-enabled.
If neither a portNumber nor an initString is provided, the remote device is assumed to be a Keithley
Instruments TSP-enabled device. Depending on the state of tspnet.tsp.abortonconnect, the Model 2651A
sends an abort command to the remote device on connection. The Model 2651A also enables TSP prompts on
the remote device and error management. The Model 2651A places remote errors from the TSP-enabled device
in its own error queue and prefaces these errors with Remote Error, followed by an error description. Do not
manually change either the prompt functionality (localnode.prompts) or show errors by changing
localnode.showerrors on the remote TSP-enabled device, or subsequent tspnet.tsp.* commands using
the connection may fail.
You can simultaneously connect to a maximum of 32 remote devices.
Example 1
myID = tspnet.connect("192.0.2.1")
if myID then
-- Use myID as needed here
tspnet.disconnect(myID)
end
Example 2
myID = tspnet.connect("192.0.2.1", 1394,
"*rst\r\n")
if myID then
-- Use myID as needed here
tspnet.disconnect(myID)
end
Also see
localnode.prompts
localnode.showerrors
tspnet.tsp.abortonconnect
tspnet.disconnect()
7-362
Model 2651A High Power System SourceMeter® Instrument Reference Manual
The connection ID to be used as a handle in all other tspnet function calls
IP address to which to connect
Port number
Initialization string to send to ipAddress
(on page 7-136)
(on page 7-139)
(on page 7-369)
(on page 7-363)
Connect to a TSP-enabled device.
Connect to a device that is not TSP-enabled.
2651A-901-01 Rev. A / March 2011