ADDENDUM
This information applies only to the
PM-1100 Optical Power Meter user guide.
GPIB Commands and Queries
³ The FORM:READ:DATA? query does not exist.
³ The MMEM:ACQ:DATA:RECA:VALUE? query should be defined as
follows:
MMEMory:ACQuisition:DATA:RECAll:VALUE?
Description This query returns the measurement saved in the <data>
memory location.
Syntax MMEM:ACQ:DATA:RECA:VALUE?<space><data>
Parameters The <data> parameter represents the memory location where
measurement data is stored (out of the 1024 available).
Response Measurement data saved in the specified memory location in
the “±999.999E±99” format.
Notes
Example MMEM:ACQ:DATA:RECA:VALUE? 1021
³ Use the MMEM:ACQ:DATA:RECA:UNIT? query to get the
corresponding measurement units.
³ Use the MMEM:ACQ:DATA:RECA:WAVE? query to get the
wavelength at which the measurement was taken.
P/N: 1051923 January 2008 1/4
The MMEM:ACQ:DATA:RECA:WAV? query should be named and
³
defined as follows:
MMEMory:ACQuisition:DATA:RECAll:WAVElength?
Description This query returns the wavelength corresponding to the last
value fetched with the MMEM:ACQ:DATA:RECA:VALUE? query.
Syntax MMEM:ACQ:DATA:RECA:WAVE?
Response A wavelength in the “9999 nm” format.
Notes
³ Use the MMEM:ACQ:DATA:RECA:UNIT? query to get the
corresponding measurement units.
³ Use the MMEM:ACQ:DATA:RECA:WAVE? query to get the
wavelength at which the measurement was taken.
Example MMEM:ACQ:DATA:RECA:WAVE?
³ The MMEM:ACQ:SAMP command should be defined as follows:
MMEMory:ACQuisition:SAMPles
Description This command changes the samples parameter for the
acquisition setup.
Syntax MMEM:ACQ:SAMP<space><samples>
Parameters The <samples> parameter is the number of samples to be set
for the acquisition setup. If an invalid parameter is entered, the
closest valid parameter will be entered instead.
Note The duration of the acquisition directly affects the values that
can be set for the number of samples
DxR=S
where
³ D = duration parameter set with the MMEM:ACQ:DURA
command (in seconds)
³ R = any of the possible sampling rates in seconds
complete list with the SENS:FREQ:CATA? query)
³ S = valid number of samples (MUST be an integer)
-1
(get the
Example MMEM:ACQ:SAMP 200
P/N: 1051923 January 2008 2/4
The SENS:FREQ:CAT? query should be named and defined as follows:
³
SENSitivity:FREQuency:CATAlog?
Description This query returns a list of available sampling rates.
Syntax SENS:FREQ:CATA?
Response List of available sampling rates in the
“40.0;20.0;10.0;5.0;1.0;0.5;0.1” format.
Example SENS:FREQ:CATA?
³ The SENS:POW:WAV command should be named and defined as
follows:
SENSitivity:POWer:WAVElength
Description This command selects a new operating wavelength.
Syntax SENS:POW:WAVE<space><numeric_value> [<space>NM]
Parameters The <numeric_value> is an operating wavelength expressed in
nanometers (nm). Any wavelength within the spectral range of
the optical detector (at 1 nm resolution) may be selected. See
the section on optical specifications in the user guide for the
exact spectral range of each detector type.
Example SENS:POW:WAVE 1310
³ The SENS:POW:WAV? query should be named and defined as follows:
SENSitivity:POWer:WAVElength?
Description This query returns the currently selected calibrated wavelength.
Syntax SENS:POW:WAVE?
Response The current wavelength in nanometers (nm) in the “9999 nm”
format.
Example SENS:POW:WAVE?
P/N: 1051923 January 2008 3/4
The UNIT:POW command should be named and defined as follows:
³
UNIT:POWer
Description This command changes the measurement display units.
Syntax UNIT:POW<space><units>
Parameters The <units> parameter can be
³ W: measured value displayed in watts (pw, nw, μw, or mw)
³ DBM: measured value displayed in dBm
³ DB: measured value displayed in dB relative to the current
reference
³ DW: measured value displayed in watts relative to the
current reference
Example UNIT:POW DBM
³ The Quick Reference Command Tree should be modified as follows to
reflect changes in GPIB commands:
Command
VALUE? (0 to 1025)
MMEM ACQ DATA RECA
Parameter/
Response
Description
Get acquired
measurement
WAVE? (9999 nm) Get wavelength
FREQ CATA? (99.9;99.9;...) List sampling rates
SENS
WAVE <9999> [NM] Set wavelength
POW
WAVE? (9999 nm) Get wavelength
UNIT POW <W|DB|DBM|DW> Set display unit
P/N: 1051923 January 2008 4/4
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