function [out] = OLPpower(port, command, data)
Scilab Driver for OLP-15B, OLP-16B and OLP-18B powermeter for optical fibers
Tested only for the OLP-15B model, but other models should be supported.
The powermeter must be connected to a serial RS-232 port and turned on.
Several power meters may be connected on their respective ports on the
same computer. Each one will be addressed through its own handle.
#1: Serial port number (for the open command),
or serial port handle returned by "open" (for all other
#2: Command name (case unsensitive)
#3: Data (unit, wavelength,..), undifferently string or numeric,
* Scilab > 5.2.0 is required
* Serial TCL toolbox 0.2 (E. Segre) must be loaded
* OS : Windows or Linux plateform. Mac OS X are not supported (for TCL)
* The powermeter must be connected to the chosen serial port.
For information: Connexion parameters are: 9600 bauds, 8 data bits,
no parity, 1 stop bit, Xon/Xoff protocol.
port, 'OPEN' : Open the RS-232 communication for the given RS-232 port.
If port is a string, it must follow the format "COM#:" or
"/dev/ttyS#" with # stating from 1 in the first case
from 0 in the second case (Linux). Else, integer numbers from 0
0 or N must be specified.
Returns 1 whether the connexion is established, 0 otherwise.
port, 'CLOSE' : Close the RS-232 communication for the given port (handle).
Returned 1 = OK
'POW?' : Query and return the measured power (numeric. 4 digits:
OLP-15B: 0.0001 µW < P < 100mW == -70dBm < P < 20dBm
In case of too low signal, -80 is returned in [dBm] or [dB] modes,
or 1e-11 is returned if [W] mode.
'UNIT', 'DBM'|'W'|'DB' : Set the measurement unit to the specified one
'UNIT?' : Query the measurement unit.
Returned strings are "W", "DBM" or
'WAV', xxxx : Set the measurement wavelength (integer in [nm])
Possible wavelengths xxxx are (OLP-15B): 780, 850, 1300, 1310, 1550
'WAV?' : Query and return the measurement wavelength (numeric integer in
'FREQ?' : Query and return the detected modulation frequency (number in [Hz])
'REF?' : Query and return the reference level power (number in [dBm])
'LID?' : Query and return the measured Line-ID
'ZEROING' : Start zeroing
'LANG', Language : Set the language for printout. Supported languages
are 'FRAN' (Français), 'ENGL' (English), 'ESPA' (Español),
'ITAL' (Italiano), 'DEUT' (Deutsch)
'LANG?' : Query and return the current language (4 characters string)
'ERR?' : Query and return the last error code from the device (2-3