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SCPI Introduction

Then, you may query count value by sending the following command:

TRIG:COUN?

You may also query the allowable minimum or maximum count as follows:

TRIG:COUN?MIN

TRIG:COUN?MAX

Comma (,)

If a command requires several Parameter, then a comma must be used to sepa-

rate adjacent Parameter.

Space

You must use blank characters, [TAB] or [Space] to separate Parameter with

key words of commands.

Common commands (*)

The IEEE-488.2 standard defines a set of common commands that perform

functions such as reset, self-test, and status operations. Common commands

always start with a asterisk (*) and occupy 3 character sizes, including one or

more Parameter. Key words of a command and the first parameter are sepa-

rated by a space. Semicolon (;) can separate several commands as follows:

*RST; *CLS; *ESE 32; *OPC?

Command terminator

Command strings sent to the instrument must end with a <Newline> (<NL>)

character. IEEE-488 EOI (End or Identify) information can be used as <NL>

character to replace termination command string of <NL> character. It is accept-

able to place one <NL> after a <Enter>. Termination of command string always

resets current SCPI command path to root level.

As for every SCPI message with one query sent to the instrument, the instru-

ment will use a <NL> or newline sign (EOI) to terminate response of return.

For example, if "DISP:TEXT?" is sent, <NL> will be placed after the returned

data string to terminate response. If an SCPI message includes several

queries separated by semicolon (such as "DISP?;DISP:TEXT?"), <NL> will

terminate response returned after response to the last query. In all cases, the

program must read <NL> in response before another command is sent to the

instrument, otherwise errors will be caused.

ITech IT8000 Series Programming Guide

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