Section 9: Introduction to TSP operation Model 2601B-PULSE System SourceMeter Instrument Reference Manual
9-2 2601B-PULSE-901-01A April 2020
Functions
Function-based commands control actions or activities. A function-based command performs an
immediate action on the instrument.
Each function consists of a function name followed by a set of parentheses ( ). You should only
include information in the parentheses if the function takes a parameter. If the function takes one or
more parameters, they are placed between the parentheses and separated by commas.
Example 1
beeper.beep(0.5, 2400)
delay(0.250)
beeper.beep(0.5, 2400)
Emit a double-beep at 2400 Hz. The
sequence is 0.5 s on, 0.25 s off, 0.5 s on.
Example 2
You can use the results of a function-based command directly or assign the results to variables for
later access. The following code defines x and prints it.
x = math.abs(-100)
print(x)
Attributes
Attribute-based commands are commands that set the characteristics of an instrument feature or
operation. For example, a characteristic of TSP-enabled instruments is the model number
(localnode.model).
Attributes can be read-only, read-write, or write-only. They can be used as a parameter of a function
or assigned to another variable.
To set the characteristics, attribute-based commands define a value. For many attributes, the value is
in the form of a number or a predefined constant.
Example 1: Set an attribute using a number
This attribute controls the beeps that occur when front-panel controls are selected. Setting this attribute to 0
turns off the beeper.
Example 2: Set an attribute using a constant
format.data = format.REAL64
Using the constant REAL64 sets the print format to double precision floating-point format.
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