4-5
IM 701310-17E
Before Programming
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3
4
5
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App
Index
4.3 Response
Response
When the controller sends a message unit that has a
question mark (
?
) in its program header (query), the
instrument returns a response message to the query.
A response message is returned in one of the following
two forms.
• Response Consisting of a Header and Data
If the response can be used as a program message
without any change, it is returned with a command
header attached.
Example
:ACQUire:MODE?<PMT>
-> :ACQUire:MODE NORMAL<RMT>
• Response Consisting of Data Only
If the response cannot be used as a program
message unless changes are made to it (query-
only command), only the data section is returned.
However, there are query-only commands that
return responses with the header attached.
Example
:MEASure:TRACe1:AREA1:PTOPeak:
VALue?<PMT> -> 10.0E+00<RMT>
When You Wish to Return a Response without
a Header
Responses that return both header and data can be
set so that only the data section is returned. The
“
COMMunicate:HEADer
” command is used to do
this.
Abbreviated Form
Normally, the lower-case section is removed from a
response header before the response is returned to
the controller. Naturally, the full form of the header
can also be used. For this, the “
COMMunicate:
VERBose
” command is used. The sections
enclosed by braces (
[]
) are also omitted in the
abbreviated form.
