EXFO IQS-600 Integrated Qualification System - Manual (Page 337)

COM Properties and Events
Integrated Qualification System 329
Properties
Read
Description This method allows you to retrieve all the data
from the device output queue in a UNICODE
format.
Syntax object.Read
Parameter(s) None.
Response(s) A string value (in UNICODE format).
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>ASCII <number_of_digits>
where <number_of_digits> corresponds to the
number of digits after the decimal point that you
require.
Remember that the retrieved data must be
converted to a numeric format before you can
use it in calculations, for example.
Possible error(s) Timeout: This error occurs if the allowed delay
has expired before the preceding Write operation
could send a response to the output queue. For
information on timeout setting, see Initialize on
page 331.
QueryUnterminated: This error occurs if the
output queue is empty (for example, no query
has been made previously).