3
Programming
164
Keysight 53147A/148A/149A Operating and Programming Guide
Parameter Separator
If you send more than one parameter with a single command, you must separate
adjacent parameters with a comma.
Query Parameters
All selectable
<numeric value>
parameters (except Common Commands) can be
queried to return the minimum, maximum, and
DEFault
values they are capable of
being set to by sending a MINimum,
MAXimum
, or
DEFault
parameter after the
“
?
.” For example, consider the
AVERage:COUNt?
query.
If you send the query without specifying a parameter (
AVER:COUN?
),
the present setting is returned. If you send the
MIN
parameter (using
AVER:COUN? MIN
), the command returns the minimum acceptable count. If you
send the
MAX
parameter, the command returns the maximum level currently
available. Be sure to place a space between the question mark and the parameter.
<arbitrary block>
The syntax is a pound sign (#) followed by a non-zero digit representing the number of digits in the
subsequent decimal integer. The decimal integer specifies the number of 8-bit data bytes being sent. This is
followed by the actual data. The terminator is a line feed asserted with EOI.
For example, for transmitting 8 bytes of data, the format could be:
The “2” indicates the number of digits that follow and the two digits “08” indicate the number of
data
bytes
to be transmitted; a zero-length block has the format: #0<new line>^EOI; <new line> is defined as a single
ASCII-encoded byte corresponding to 10 decimal.
Table 3-5
Command and Query Parameter Types (continued)
Type
Explanations and Examples
<new line>
<8 bytes of data>
2
# 08
^EOI
Terminator
Actual data
Number of digits
that follow
Number of bytes
to be transmitted
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