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SCPI Command Format
SCPI Long Form Command Headers
The general rule for SCPI long form command headers that are greater than four
characters in length is as follows:
• Abbreviated short form mnemonics - the first four characters from the long form
command header are used unless the fourth character is a vowel. In such cases,
the vowel is dropped and only the first three characters are used.
• If the command is four characters long then all four characters are used,
irrespective of whether the fourth character is a vowel or not.
Linking Command Statements
Command statements can be linked using semicolons (;). For example :
:INPut:TELecom:SPDH:CODE AMI;:SOURce:DATA:TELecom:SPDH:
PAYLoad:PATTern PRBS23
Parameters
In this manual, parameters are shown in angled brackets < >. There are five
parameter types used in commands as listed in table 2-1.
Table 2-1
Parameter Types
Parameter
Types
<numeric>
<boolean>
<discrete>
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Description
All commonly used decimal numbers including optional
signs, decimal points, and scientific notation. Examples are
123, 123E2, −123, −1.23E2, .123, .123E2 and1.2300E−01.
Special cases include MINimum and MAXimum. A
numeric parameter can also be specified in hex, octal, and/
or binary. Examples are #H7B, #Q173 and #B11110111.
A single binary condition that is either true or false.
Examples are ON, OFF, 1 and 0.
Values that are represented by a string of alphanumeric
characters. Examples are INTernal and EXTernal.
2-3
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