Tektronix Keithley SourceMeter 2470 Reference Manual

2470
High Voltage SourceMeter Instrument Reference Manual Section 14:
TSP command reference
2470-901-01 Rev. A / May 2019 14-47
dataqueue.add()
This function adds an entry to the data queue.
Type TSP-Link accessible
Affected by Where saved Default value
Function
Yes
Usage
result = dataqueue.add(value)
result = dataqueue.add(value, timeout)
result
The resulting value of
true
or
false
based on the success of the function
value
The data item to add;
value
can be of any type
timeout
The maximum number of seconds to wait for space in the data queue
Details
You cannot use the timeout value when accessing the data queue from a remote node (you can
only use the timeout value while adding data to the local data queue).
The timeout value is ignored if the data queue is not full.
The dataqueue.add() function returns false:
 If the timeout expires before space is available in the data queue
 If the data queue is full and a timeout value is not specified
If the value is a table, a duplicate of the table and any subtables is made. The duplicate table does
not contain any references to the original table or to any subtables.
Example
dataqueue.clear()
dataqueue.add(10)
dataqueue.add(11, 2)
result = dataqueue.add(12, 3)
if result == false then
print("Failed to add 12 to the dataqueue")
end
print("The dataqueue contains:")
while dataqueue.count > 0 do
print(dataqueue.next())
end
Clear the data queue.
Each line adds one item to the data queue.
Output:
The dataqueue contains:
10
11
12
Also see
dataqueue.CAPACITY (on page 14-48)
dataqueue.clear() (on page 14-48)
dataqueue.count (on page 14-49)
dataqueue.next() (on page 14-50)
Using the data queue for real-time communication (on page 9-10)

Tektronix Keithley SourceMeter 2470 Specifications

General

Brand	Tektronix
Model	Keithley SourceMeter 2470
Category	Measuring Instruments
Language	English