HBK FS22SI, User Manual

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49
FS22SI
REMOTE COMMUNICATIONS
Continuous Acquisition
:ACQUisition:OSATrace:CONTinuous:STARt
Simultaneous continuous acquisition of optical spectrum traces of all channels. This
command is sent via port 3500 and corresponding data is received through port 3365
in binary format. The answer is a big endian binary stream representing a double pre­
cision (8 bytes) array with 20001 points times the number of optical channels of the
interrogator. The first 4 bytes of the binary stream indicate the number of channels
and the last 4 bytes indicate the number of data bytes to be read. To be in agreement
with the communication protocol syntax of the interrogator, Carriage Return/Line Feed
(CR/LF) are also included in the stream and, therefore, "2" must be added to the value
returned by the last 4 bytes of the stream.
The returned data represents the power values of the OSA traces for all optical chan­
nels with points from 1500 nm to 1600 nm sampled every 5 pm.
Example:
Command :ACQU:OSAT:CONT:STAR
Answer Port 3500 » :ACK
Port 3365 »
ƪ
*
68, 92
L
L
*
20, 46
L
L
@@@
@@@
ƫ
#OCx
20001
:ACQUisition:WAVElength:CONTinuous:STARt
Continuous acquisition of the peak wavelengths of the fiber Bragg grating sensors in
all channels of the FS22. This command is sent via port 3500 and corresponding data
is received through port 3365. The answer is a string starting with the timestamp with
the format «YYYY.MM.DD:hh:mm:ss» followed with the wavelengths in growing order
of wavelength separated by “,", from all channels separated by “:".
Note: if there are channels with no sensors, the answer will have no wavelength
between “:".
Example:
Command :ACQU:WAVE:CONT:STAR
Answer Port 3500 » :ACK
Port 3365 » 2011.10.07:16:04:52:
1523.6573, 1554.0709, 1566.7846::
1567.6987, 1584.9825: 1534.9824