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Models 707B and 708B Switching Matrix Reference Manual
Section 7: Command reference
707B-901-01 Rev. A / August 2010
7-229
tspnet.connect()
This function connects the device processing the command to another device through the LAN interface.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function Yes
Usage
connectionID = tspnet.connect(ipAddress)
connectionID = tspnet.connect(ipAddress, portNumber)
connectionID = tspnet.connect(ipAddress, portNumber, initString)
connectionID
The connection ID to be used as a handle in all other tspnet function calls
ipAddress
IP address to which to connect
portNumber
Port number
initString
Initialization string to send to
ipAddress
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 707B or 708B 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-enbled device. Depending on the state of
tspnet.tsp.abortonconnect
, the Model 707B or
708B sends an
abort
command to the remote device on connection. The Model 707B or 708B also enables
TSP prompts on the remote device and error management. The Model 707B or 708B 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
end
tspnet.disconnect(myID)
Connect to a TSP-enabled device.
Example 2
myID = tspnet.connect("192.0.2.1", 1394,
"*rst\r\n")
if myID then
-- Use myID as needed here
end
tspnet.disconnect(myID)
Connect to a device that is not TSP-enabled.