RIGOL M300 - Manual (Page 9)

Chapter 1 Programming Overview RIGOL
Programming Guide for DM3000 1-3
Symbol Description
1. Colon :
The command string usually starts with a colon (:) which is also used to separate
command keyword and lower-level keyword.
2. Question Mark ?
A command followed by a question mark (?) is used to query the function under this
command. A query command usually contains different data, and these data are
separated by spaces. However, there are also some commands that do not contain
any data.
3. Comma ,
“,” is used to separate different types of parameters contained in a command. For
example,
:DATAlog:CONFigure:FUNCtion {<DCV|DCI|RESistance|FRESistance>,<range>}
4. Braces { }
The contents enclosed in braces are parameters. If the parameters are separated by a
vertical line (|), only one parameter can be selected at a time. For example, {ON|OFF}
indicates that either ON or OFF can be used.
5. Triangle Brackets < >
The parameter enclosed in the triangle brackets must be replaced by an effective
value which will be used as the data parameter of the command.
6. Square brackets [ ]
The parameters or command keywords enclosed in square brackets ([ ]) are optional
or could be ignored. The square brackets ([ ]) will not be sent with the command. If
none of the parameters are specified, the system will use a default. For example,
CONFigure[:VOLTage][:DC]
[{<range>|AUTO|MIN|MAX|DEF}[,{<resolution>|MIN|MAX|DEF}]]
If all the parameters enclosed in the square brackets are set to their defaults, the
command can be abbreviated to:
CONFigure