EXFO IQS-600 Series, User Manual

Page: 343 / 379

COM Properties and Events
Integrated Qualification System
335
Properties
For example, if you receive this response (here,
values are expressed in decimal instead of binary
for easier readability):
# 2 1 3 7 5 8 9 2 ...
The byte that immediately follows the # contains
2, which means that you have to read the two
following bytes to know the length (in bytes) of
the retrieved data. The bytes indicate 1 and 3.
The length is then 13 bytes. The actual response
begins at byte number 5, in this case.
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 335.
QueryUnterminated
: This error occurs if the
output queue is empty (that is, if no query has
been made previously).
Initialize
Description This method allows you to configure the timeout
value, that is, the allowed delay for Read and
Write operations, in milliseconds.
Syntax object. Initialize ( Timeout )
Parameter(s)
Timeout
: Required. A numeric value
corresponding to the delay in milliseconds.
Notes If the Initialize method is not invoked, the default
value is 10 000 milliseconds.
ReadBinary