To Next Page

To Previous Page

Page 78 of 110 150821/A4 Interface

3.1.4 IEEE-488 Command Format

The IEEE-488 commands are configured in Root format. There are six levels of the instruction

from top to bottom. Follow the specific path (as illustrated in Figure 3-3) to configure a specific

command. The colon at the beginning of each line denotes that all line signals are root. Use a

colon (:) to separate levels. Use the semicolon (;) to separate two commands on the same line.

For example, to format the command for the NAME function, use this path:

:CALCulate:MATH:EXPRession:NAME

To format the NAME and CATalog function, use two single commands:

:CALCulate:MATH:EXPRession:NAME

:CALCulate:MATH:EXPRession:CATalog

or use the single command:

:CALCulate:MATH:EXPRession:NAME;CATalog

If the command is a setting, then put the parameter after the instruction. If the command is an

inquiry, then put a question mark (?) after the instruction.

For example, to set the frequency to 1kHz:

:SOURce:FREQuency[:CW]1kHz

To inquire what the frequency is set to:

:SOURce:FREQuency[:CW]?

The lowercase letters and portion in parenthesis can be omitted so the above instruction can be

rewrites as:

:SOUR:FREQ;

The Ending Code can be any type in Table 3-8.

Table 3-8: IEEE-488 Interface Ending Codes

Ending Code

[CR] (0Dh)

[LF] (0Ah)

[CR] (0Dh) + [LF] (0Ah)

QuadTech 1730T User Manual

Questions and Answers: