6
AFG1000 Series Arbitrary Function Generator Programmer Manual
Command Syntax
The parameter type is listed after the parameter and is enclosed in parentheses,
for example, (boolean). Some parameter types are defined specifically for the
instrument command set and some are defined by SCPI.
Table 3: Parameter types used in syntax descriptions
Parameter type
Description
Example
arbitrary block
1
A specified length of
arbitrary data
#512234xxxxx . . . where
5 indicates that the following
5 digits (12234) specify the
length of the data in bytes;
xxxxx ... indicates the data
or
#0xxxxx...<LF><&EOI>
boolean
Boolean numbers or values
ON or ≠ 0
OFF or 0
discrete
A list of specific values
MIN, MAX
binary
Binary numbers
#B0110
octal
Octal numbers
#Q57, #Q3
hexadecimal
2
Hexadecimal numbers
(0-9, A, B, C, D, E, F)
#H AA, #H1
NR1
2
numeric
Integers
0, 1, 15, -1
NR2
2 3
numeric
Decimal numbers
1.2, 3.141516, -6.5
NR3
2
numeric
Floating point numbers
3.1415E-9, -16.1E5
NRf
2
numeric
Flexible decimal number that
may be type NR1, NR2 or NR3
See NR1, NR2, and NR3
examples
string
4
Alphanumeric characters (must
be within quotation marks)
"Testing 1, 2, 3"
1
Defined in ANSI/IEEE 488.2 as "Definite Length Arbitrary Block Response Data."
2
An ANSI/IEEE 488.2-1992-defined parameter type.
3
Some commands and queries will accept an octal or hexadecimal value even though the parameter type is
defined as NR1.
4
Defined in ANSI/IEEE 488.2 as "String Response Data."
Special Characters
The Line Feed (LF) character or the New Line (NL) character (ASCII 10), and all
characters in the range of ASCII 127-255 are defined as special characters. These
characters are used in arbitrary block arguments only; using these characters in
other parts of any command yields unpredictable results.
