
Command Reference
SCPI Basics
Chapter 4146
Discrete Parameters
Discrete parameters use mnemonics to represent each valid setting. They have a long and a
short form, just like command mnemonics. You can mix upper and lower case letters for
discrete parameters.
The following examples of discrete parameters are used with the command
:TRIGger[:SEQuence]:SOURce BUS|IMMediate|EXTernal.
Although discrete parameters look like command keywords, do not confuse the two. In
particular, be sure to use colons and spaces properly. Use a colon to separate command
mnemonics from each other and a space to separate parameters from command mnemonics.
The following are examples of discrete parameters in commands:
Boolean Parameters
Boolean parameters represent a single binary condition that is either true or false. The
two-state boolean parameter has four arguments. The following list shows the arguments for
the two-state boolean paramenter:
BUS GPIB triggering
IMMediate immediate trigger (free run)
EXTernal external triggering
TRIGger:SOURce BUS
TRIGger:SOURce IMMediate
TRIGger:SOURce EXTernal
ON boolean true, upper/lower case allowed
OFF boolean false, upper/lower case allowed
1 boolean true
0 boolean false
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