Exfo FTB-2 Manual do Utilizador descarregar pdf (Página 410)

100

101

COM Properties and Events

400 FTB-2 and FTB-2 Pro

Properties

ReadBinary

Description With this method you can retrieve data from the

device output queue in a binary format.

Syntax object.ReadBinary

Parameter(s) None.

Response(s) An array of bytes.

Notes This method must be used in conjunction with

the Write method. Always ensure that a query

has been previously sent before attempting to

read a response from the output queue.

To properly set the data format, send the

following command (using the Write method):

FORM:DATA<wsp>PACKED

The retrieved data does not need to be converted

to a numeric format before you can use it in

calculations, for example.

To help you know the actual length of the

retrieved data, it has the following structure:

 The first byte contains the # character.

 The byte that immediately follows contains

the number of subsequent bytes that you

have to check to know the total length.

1 2 ... 405 406 407 408 409 410 411 412 413 414 415 ... 442 443

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