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4.2 Commands
When Separating Commands with <PMT>
If a terminator is used to separate two commands,
each command is a separate message. Therefore, the
common header must be specified for each command
even when commands belonging to the same
command group are being concatenated.
:INTEGrate:MODE NORMal<PMT>:
Example
INTEGrate:ACAL ON<PMT>
Upper-Level Query
An upper-level query is a query that is made by
appending a question mark to a command higher in the
group. The controller can receive all of the settings in
a group collectively by executing a highest-level query.
Some query groups which are comprised of more than
three hierarchical levels can output all the lower level
settings.
:INTEGrate?<PMT> ->
Example
:INTEGRATE:MODE NORMAL;
TIMER 0,0,0;ACAL 0;
WPTYPE CHARGE;QMODE DC<RMT>
The response to an upper-level query can be
transmitted as a program message back to the
instrument. In this way, the settings that existed when
the upper-level query was made can be restored.
However, some upper-level queries do not return setup
information that is not currently in use. It is important
to remember that not all the group's information is
necessarily returned as part of a response.
4-4
Header Interpretation Rules
The instrument interprets the header that is received
according to the rules below.
• Mnemonics are not case sensitive.
Example " CURSor " can also be written as " cursor "
or " CUrsor ."
• The lower-case section of the header can be
omitted.
Example " CURSor " can also be written as " CURSO "
or " CURS ."
• The question mark ( ? ) at the end of a header
indicates that it is a query. The question mark ( ? )
cannot be omitted.
Example: The shortest abbreviation for CURSor? is
CURS? .
• If the <x> (value) at the end of a mnemonic is
omitted, it is interpreted as a 1.
Example If " ELEMent<x> " is written as " ELEM ," it
means " ELEMent1 ."
• The section enclosed by braces ([]) can be omitted.
Example " [:INPut]:SCALing[:STATe][:ALL]
ON " can be written as " SCAL ON ."
However, the last section enclosed by braces ([])
cannot be omitted in an upper-level query.
Example " SCALing? " and " SCALing:STATe? " are
different queries.
IM 760201-17E
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