Remote Control Basics > SCPI Command Structure > Syntax for Device-Specific Commands > Optional Mnemonics
Optional Mnemonics

Some command systems permit certain mnemonics to be inserted into the header or omitted. These mnemonics are marked by square brackets in the description. The instrument must recognize the long command to comply with the SCPI standard. Some commands are considerably shortened by these optional mnemonics.

Example: 

Definition: HCOPy[:IMMediate]

Command: HCOP:IMM is equivalent to HCOP

Optional mnemonics with numeric suffixes

Do not omit an optional mnemonic if it includes a numeric suffix that is relevant for the effect of the command.

Example:

Definition:DISPlay[:WINDow<1...4>]:MAXimize <Boolean>

Command: DISP:MAX ON refers to window 1.

In order to refer to a window other than 1, you must include the optional WINDow parameter with the suffix for the required window.

DISP:WIND2:MAX ON refers to window 2.

 


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