Symbol instruction, Symbol instruction -3 – RIGOL DM3058 User Manual
Page 8

RIGOL
Programming Guide for DM3058/DM3058E
1-3
Symbol Instruction
1. Colon :
Commands usually begin with a colon (:), which is used to separate the keyword
from lower-level keyword, denoting the beginning of an operation to the
multimeter.
2. Interrogation ?
A query is formed by adding an interrogation (?) at the end of the command. The
query command usually contains different data, and both of them usually divided
by a space.
3. Braces { }
When several elements separated by a vertical line (|) are enclosed by braces, { },
only one element may be selected. For example, {ON | OFF} indicates that only
ON or OFF may be selected, not both.
4. Triangle Brackets < >
The item enclosed in < > should be replaced by an actual value as a parameter.
5. Square brackets [ ]
Some parameters or command keywords are enclosed by square bracket ( [ ] ),
indicating that which are optional or could be ignored. If no parameter is set, the
system will select a default. For example,
[MINimum|MAXimum]
can be ignored
in command
CALCulate:LIMit:LOWer?
[
MINimum|MAXimum]
, while
[:EVENt]
in
command
STATus:OPERation[:EVENt]?
.