Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
A
<RESPONSE MESSAGE TERMINATOR>
character (0DH 0AH).
Each query produces a specific
the REMOTE COMMANDS section.
<WHITE SPACE>
"∗CLS".
<WHITE SPACE>
the codes specified as ARC interface commands.
The high bit of all characters is ignored.
The commands are case insensitive.
GPIB Remote Command Formats
GPIB input to the instrument is buffered in a 256 byte input queue which is filled, under interrupt,
in a manner transparent to all other instrument operations. The queue contains raw (un-parsed)
data which is taken, by the parser, as required. Commands (and queries) are executed in order
and the parser will not start a new command until any previous command or query is complete.
There is no output queue which means that the response formatter will wait, indefinitely if
necessary, until the instrument is addressed to talk and the complete response message has
been sent, before the parser is allowed to start the next command in the input queue.
Commands are sent as
or more
<PROGRAM MESSAGE UNIT>
elements.
<PROGRAM MESSAGES>
be any of the following:
NL
NL^END
^END
A
<PROGRAM MESSAGE UNIT SEPARATOR>
A
<PROGRAM MESSAGE UNIT>
Responses from the instrument to the controller are sent as
<RESPONSE MESSAGE>
MESSAGE TERMINATOR>
A
<RESPONSE MESSAGE TERMINATOR>
Each query produces a specific
the REMOTE COMMANDS section.
<WHITE SPACE>
"∗CLS".
<WHITE SPACE>
the NL character (0AH).
The high bit of all characters is ignored.
The commands are case insensitive.
<RESPONSE MESSAGE>
is ignored except in command identifiers. e.g. "*∗C LS" is not equivalent to
is defined as character codes 00H to 20H inclusive with the exception of
<PROGRAM MESSAGES>
elements separated by
are separated by
The new line character (0AH)
The new line character with the END message
The END message with the last character of the message
is any of the commands in the REMOTE COMMANDS section.
consists of one
.
<RESPONSE MESSAGE>
is ignored except in command identifiers. e.g. "∗C LS" is not equivalent to
is defined as character codes 00H to 20H inclusive with the exception of
is the carriage return character followed by the new line
which is listed along with the command in
by the controller, each message consists of zero
<PROGRAM MESSAGE TERMINATOR>
is the semi-colon character ";" (3BH).
<RESPONSE MESSAGE UNIT>
is the new line character with the END message NL^END.
which is listed along with the command in
<PROGRAM MESSAGE UNIT SEPARATOR>
elements which may
<RESPONSE MESSAGES>
followed by a
. A
<RESPONSE
19
Werbung
Inhaltsverzeichnis
