HP E1429A manual Instrument and Programming Languages, TRIGSTARTIM1 10E-6

Models: E1429A

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Instrument and Programming Languages

The purpose of this manual is to teach you how to use the HP E1429A/B digitizer. To do this, the manual uses block diagrams, flowcharts, and example programs. In most cases, the manual’s example programs list only the digitizer’s SCPI commands. The I/O (input/output) constructs depend on the programming language you use.

SCPI Programming SCPI (Standard Commands for Programmable Instruments) is an ASCII-based instrument command language designed for test and measurement instruments. The message-based digitizer has an on-board microprocessor which interprets the ASCII command strings and returns ASCII formatted results.

Command Listings The typical format of commands listed in the command reference and throughout this manual is:

TRIGger[:STARt]:TIMer1 <period>

To aid in learning the digitizer command set, all headers are included

in the example programs; however, the headers are abbreviated. In an example program, the previous statement with a period parameter of

10 μs would appear as:

TRIG:STAR:TIM1 10E-6

Note Chapter 4 contains more information on the structure and execution of SCPI commands.

Coupled Commands Some of the digitizer SCPI commands are functional or value coupled. Functionally coupled commands are those that for one command to have affect, another command must be set to a particular value. Value coupled commands are those where changing the value of one command, changes the value of the others.

28 Getting Started

Chapter 1

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HP E1429A manual Instrument and Programming Languages, TRIGSTARTIM1 10E-6