1256E User Manual
SCPI Command Basics 5-24
Racal Instruments
©
2002
Type
used in program messages and response messages.
Numeric Parameters
Commands that require numeric parameters will accept all
commonly used decimal representations of numbers including
optional signs, decimal points, and scientific notation.
TRIG:DELAY 0.035
When a real, non-integer value is returned in a reply from the
1256, the floating point notation will be used. The only non-integer
values returned from the 1256 correspond to the
TRIGGER:DELAY and the OUTPUT:DELAY. The values will be a
number between 0.0 and 10.0. At most, 6 digits follow the decimal
point.
Integer values may be sent in the command using decimal, octal,
hexadecimal, or binary values. The default base for values is
decimal.
To specify a hexadecimal value, use the prefix #H. To specify an
octal value, use the prefix “#Q”. To specify a binary value, use the
prefix “#B”. The following values are all equivalent.
123
123
decimal
#B1111011
1111011 binary = 123 decimal
#H7B
7B hex = 123 decimal
#Q173
173 octal = 123 decimal
When an integer value is returned In a reply from the 1256, the
value will be a decimal number.
Discrete Parameters
Discrete parameters are used to program settings that have a
limited number of values. Parameters are NOT case sensitive. As
an example of the discrete parameter, the TRIGGER:SOURCE
command is specified as:
:TRIGger
:SOURce
{ BUS | HOLD | IMMediate | EXT }
Meaning the parameter must be one of the following:
BUS
HOLD
IMM
IMMEDIATE
EXT
Note that, just like command keywords, discrete parameters may
