Keithley 2601B Reference Manual

Section
6: Instrument programming Series 2600B System SourceMeter® Instrument
Reference Manual
6-22 2600BS-901-01 Rev. B / May 2013
Example: While
list = {
"One", "Two", "Three", "Four", "Five", "Six"}
print("Count list elements on numeric index:")
element = 1
while list[element] do
print(element, list[element])
element = element + 1
end
This loop exits when list[element]
= nil.
Output:
Count list elements on
numeric index:
1 One
2 Two
3 Three
4 Four
5 Five
6 Six
Repeat until loops
To repeat a command, you use the repeat ... until statement. The body of a repeat statement
always executes at least once. It stops repeating when the conditions of the until clause are met.
repeat
block
until expression
Where:
• block consists of one or more Lua statements
• expression is Lua code that evaluates to either true or false
The output you get from this example may vary depending on the data format settings of the
instrument.
Example: Repeat until
list = {
"One", "Two", "Three", "Four", "Five", "Six"}
print("Count elements in list using repeat:")
element = 1
repeat
print(element, list[element])
element = element + 1
until not list[element]
Output:
Count elements in list
using repeat:
1 One
2 Two
3 Three
4 Four
5 Five
6 Six
For loops
There are two variations of for statements supported in Lua: numeric and generic.
In a for loop, the loop expressions are evaluated once, before the loop starts.
The output you get from these examples may vary depending on the data format settings of the
instrument.

Keithley 2601B Specifications

General

Brand	Keithley
Model	2601B
Category	Measuring Instruments
Language	English