Agilent Technologies HP 54601B Specifiche Scaricare il pdf (Pagina 12)

Talking to the Instrument

Computers acting as controllers communicate with the instrument by

sending and receiving messages over a remote interface. Instructions for

programming normally appear as ASCII character strings embedded inside

the output statements of a “host” language available on your controller. The

input statements of the host language are used to read in responses from the

oscilloscope.

For example, Agilent BASIC uses the OUTPUT statement for sending

commands and queries. After a query is sent, the response is usually read in

using the ENTER statement.

Messages are placed on the bus using an output command and passing the

device address, program message, and terminator. Passing the device address

ensures that the program message is sent to the correct interface and

instrument.

The following Agilent BASIC statement sends a command which sets the

bandwidth limit of channel 1 on:

OUTPUT < device address > ;":CHANNEL1:BWLIMIT ON"<terminator>

The < device address > represents the address of the device being

programmed. Each of the other parts of the above statement are explained in

the following pages.

Introduction to Programming

Talking to the Instrument

1–3

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Agilent Technologies HP 54601B Specifiche Pagina 12