Keithley 2657A User Manual

Section 7: TSP command reference Model 2657A High Power System SourceMeter® Instrument Reference Manual
7-72 2657A-901-01 Rev. B/December 2012
Details
This function creates an editable input field at the present cursor position, and an input prompt message on the
bottom line. Example of a displayed input field and prompt:
0.00V
Input 0 to +2V
The format parameter uses zeros (0), the decimal point, polarity sign, and exponents to define how the input
field is formatted.
The format parameter can include the options shown in the following table.
Option Description Examples
E
Include the E to display the value exponentially. Include a
plus sign (+) for positive/negative exponent entry. Do not
include the plus sign (+) to prevent negative value entry. 0
defines the digit positions for the exponent.
0.00000E+0
+
Allows operators to enter positive or negative values. If
the plus sign (+) is not included, the operator cannot enter
a negative value.
+0.00
0
Defines the digit positions for the value. You can use up to
six zeros (0).
+00.0000E+00
. The decimal point where needed for the value.
+0.00
The minimum and maximum parameters can be used to limit the values that can be entered. When a plus sign
(+) is not selected for format, the minimum limit must be greater than or equal to zero (0). When limits are used,
the operator cannot enter values above or below these limits.
The input value is limited to ±1e37.
After sending this command, script execution pauses for the operator to enter a value and press ENTER.
For positive and negative entry (plus sign (+) used for the value field and the exponent field), polarity of a
nonzero value or exponent can be toggled by positioning the cursor on the polarity sign and turning the
navigation wheel . Polarity will also toggle when using the navigation wheel to decrease or increase the
value or exponent past zero. A zero value or exponent (for example, +00) is always positive and cannot be
toggled to negative polarity.
After executing this command and pressing the EXIT (LOCAL) key, the value returns nil.
Example
value = display.prompt("0.00", "V", "Input 0 to +2V", 0.5, 0, 2)
print(value)
The above command prompts the operator to enter a voltage value. The valid input range is 0 to +2.00, with a
default of 0.50:
0.50V
Input 0 to +2V
If the operator enters 0.70, the output is:
7.00000e-01
Also see
display.inputvalue() (on page 7-65)

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English