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E2730A VXI RF TUNER
NUMERIC DATA
REPRESENTATION
OPERATION
character. Numeric arguments are represented by the least number of
digits necessary to represent the entire range of the argument. If the
argument can be negative then a sign character ("+" or "-") is always
given. Multiple arguments are delimited by "," character(s). Responses to
concatenated queries are concatenated in the output buffer, delimited by
"," characters. The tuner terminates all query responses with a carriage
return (0D hex) character followed by a linefeed (0A hex).
Numeric arguments that are used with commands are accepted in a
forgiving numeric representation. Numeric arguments that appear in query
responses are in a fixed field format.
representation used in this document are given below.
nrf
-
forgiving numeric representation
The nrf data element is composed of the sequential fields
listed below. All fields are optional with one restriction: at
least one digit must be present within the active data
element.
1.
Plus (+) or minus (-) sign.
2.
Any number of digits, up to eight.
3.
Decimal point.
4.
Any number of digits, up to eight.
5.
Uppercase or lower case "E,e" followed by an
optional sign and at least one digit but no more than
three digits.
This format specifies all numeric input data. If the unit
receives an nrf argument of a precision greater than it can
handle, rounding is used.
nr1
-
numeric response data - integers
This numeric response data format is composed of an
optional sign, followed by any number of digits.
decimal point is implicitly defined to follow the last digit
and is not present in the data element.
nr2
-
nr2 numeric response data - real
This numeric response data format is composed of an
optional sign field, followed by any number of digits, a
decimal point, and any number of digits. As implied, there
must be at least one digit on either side of the decimal point.
The resolution of this numeric data for frequency responses
may be selected with the #FFE User Configuration message.
Refer to Table 3-15 for details on the #FFE command.
Specific details on numeric
The
3-5
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