2606B System SourceMeter® Instrument Reference Manual
Section 6: Instrument programming
2606B-901-01 Rev. B / May 2018
6-17
To execute a function, substitute appropriate values for
parameterX
and insert them into a message
formatted as:
myFunction
(
valueForParameterX
,
valueForParameterY
)
Where
valueForParameterX
and
valueForParameterY
represent the values to be passed to
the function call for the given parameters.
The output you get from these examples may vary depending on the data format settings of the
instrument.
Example 1
function add_two(first_value,
second_value)
return first second_value
end
print(add_two(3, 4))
Creates a variable named
add_two
that
has a variable type of function.
Output:
7
Example 2
add_three = function(first_value,
second_value, third_value)
return first second
third_value
end
print(add_three(3, 4, 5))
Creates a variable named
add_three
that has a variable type of function.
Output:
12
Example 3
function sum_diff_ratio(first_value,
second_value)
psum = first second_value
pdif = first_value - second_value
prat = first_value / second_value
return psum, pdif, prat
end
sum, diff, ratio = sum_diff_ratio(2, 3)
print(sum)
print(diff)
print(ratio)
Returns multiple parameters (sum,
difference, and ratio of the two numbers
passed to it).
Output:
5
-1
0.66666666666667
Create functions using scripts
You can use scripts to define functions. Scripts that define a function are like any other script: They
do not cause any action to be performed on the instrument until they are executed. The global
variable of the function does not exist until the script that created the function is executed.
A script can consist of one or more functions. Once a script has been run, the computer can call
functions that are in the script directly.