Section 7: TSP command reference
Model 2657A High Power System SourceMeter® Instrument Reference Manual
7-48
2657A-901-01 Rev. B/December 2012
Details
If the data queue is empty, the function waits up to the
timeout
value.
If data is not available in the data queue before the
timeout
expires, the return value is
nil
.
The entries in the data queue are removed in first-in, first-out (FIFO) order.
If the value is a table, a duplicate of the original 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()
for i = 1, 10 do
dataqueue.add(i)
end
print("There are " .. dataqueue.count
.. " items in the data queue")
while dataqueue.count > 0 do
x = dataqueue.next()
print(x)
end
print("There are " .. dataqueue.count
.. " items in the data queue")
Clears the data queue, adds ten entries, then
reads the entries from the data queue.
Output:
There are 10 items in the data
queue
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
1.01
There are 0 items in the data queue
Also see
(on page 7-47)
delay()
This function delays the execution of the commands that follow it.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function No
Usage
delay(
seconds
)
seconds
The number of seconds to delay; maximum 100,000
Details
You cannot set a delay for zero seconds.
The instrument delays execution of the commands for at least the specified number of seconds and fractional
seconds. However, the processing time may cause the instrument to delay 5
μ
s to 10
μ
s (typical) more than the
requested delay.
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