Arguments; Table 3-2: Decimal Numeric Notation - Sony Tektronix VX4792 User Manual

Command Syntax

Arguments

Decimal Numeric
Unit and SI Prefix
3-4
In a command or query, one or more arguments follow the command header. The
argument, sometimes called program data, is a quantity, quality, restriction, or
limit associated with the command or query header. Depending on the command
or query header given, the argument is one of the following types:
H Decimal Numeric
H String
H Arbitrary Block
The VX4792 Arbitrary Waveform Generator defines a decimal numeric argument
as one expressed in one of three numeric representations: NR1, NR2, or NR3.
This definition complies with that found in ANSI/IEEE Std 488.2-1987. Any
commands that use arguments in any of the first three notations can use a fourth
notation NRf (for Numerical Representation flexible). The four formats are
shown in Table 3–2.

Table 3-2: Decimal Numeric Notation

Type Format
NR1 Implicit point (integer)
NR2 Explicit point unscaled (fixed point)
NR3 Explicit point scaled (floating point)
NRf Numeric representation flexible; any of NR1,
NR2, and NR3 may be used
As just implied, you can use NRf notation for arguments in your programs for
any commands that this manual lists as using any of NR1, NR2, or NR3 notation
in its arguments. Be aware, however, that query response will still be in the
format specified in the command. For example, if the command description is
:DESE <NR1>, you can substitute NR2 or NR3 when using the command in a
program. However, if you use the query :DESE?, the waveform generator will
respond in the format <NR1> to match the command description in this manual.
If the decimal numeric argument refers to a voltage, frequency, or percentage,
you can express it using SI units instead of the scaled explicit point input value
format <NR3>. (SI units are units that conform to the Systeme International
d'Unites standard.) For example, you can use the input format 200 mV or
1.0 MHz instead of 200.0E-3 or 1.0E+6, respectively, to specify voltage or
frequency.
Examples
1, +3, -2, +10, -20
1, 2, +23.5, -0.15
1E+2, +3.36E-2, -1.02E+3
1, +23.5, -1.02E+3
VX4792 User Manual