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Command Syntax
Option 01 VXI Interface Module User Manual
3–3
In the query
route:close? (@m1(1:64))
the query header is the string “route:close?”. The argument associated with
this query is the channel list “(@m1(1:64))”. At least one white space
character must be sent before the channel list argument.
H All characters in a command can be sent in either upper or lower case form.
H Multiple data parameters passed by a command are separated by a comma
(,).
H A question mark (?) following a command indicates that a response will be
returned. All responses from the module are terminated with a carriage return
<CR> and a line feed <LF> (hexadecimal 0A) character.
H In the command descriptions, the following special characters are used.
Except for the colon (:), these characters are not part of the command and
should not be sent. If an optional field is omitted, the default for the
command is applied.
[ ] Brackets indicate an optional field
| A bar indicates a logical OR choice
: A colon is used to separate command fields
< > Field indicator
Capital letters indicate the minimum required characters which need to be sent.
Lower case letters are optional. For example, the syntax of the trigger source
command is given as
TRIGger[:SEQuence]:SOURce BUS | HOLD | IMMediate | TTLTrg<n>
Each of the following is a valid form of this command:
trigger:sequence:source bus
trig:seq:sour hold
Trig:SOUR IMM
Trig:Sour TTLTRG1
Trig:Sour TTLT1
Trigger:Source Immediate
Syntax Example