ILX Lightwave LDC-3926339 User Manual page 62

LASER:CAL:STATus?
Parameters
Notes
Examples
LASER:COND?
Parameters
Notes
Examples
02_03
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
The LASER:CAL:STATus? query is to determine whether the unit is ready for a calibration value and
whether it is in a Laser calibration mode.
None. The response will be an <nrf value>; 0 = Not Ready for Measurement, 1 = Ready for
Measurement, 2 = Calibration Completed, and 3 = Calibration Aborted.
If the calibration is aborted, the status value will remain "3" until the calibration is started again.
LASER:CAL:STAT?-response: 1, means the module is ready for a calibration measurement to be
entered using the "LASER:CAL:MEAS" command.
LASER:CAL:STAT?-response: 2, means the module has completed calibration.
LASER:Cal:Stat?-response: 0, means the module is not yet ready for the LASER calibration
measurement value to be entered.
The LASER:COND? query returns the contents of the Laser Condition Status register.
None. The response is the sum of the following:
1 - Current Limit
2 - Voltage Limit
4 - n/a
8 - Power Limit
16 - Interlock Disabled
32 - n/a
64 - n/a
128 - Open Circuit
The conditions which are reported to the LDC-3926 Status Byte are set using the
LASER:ENABle:COND command (for each channel). See the Status Reporting section of the LDC-
3926 manual for more complete information.
The Open Circuit condition can only be present while a LASER output is on; when the hardware
detects this condition, it will turn that LASER output off. Therefore, the Open Circuit condition is
fleeting and may be missed with the LASER:COND? query. The user should test for the Open
Circuit Event using the LASER:EVEnt? query.
The condition status is constantly changing, while the event status is only cleared when the event
status is read or the *CLS or *RST command is issued.
The voltage limit condition occurs as a warning when the laser diode voltage is about 0.25 volts
below the VLim setting. The Open Circuit condition occurs when the laser diode voltage is equal to
or exceeds the VLim setting.
LASER:COND?-response: 1027, means that the Laser Output is On (1024), it is in Voltage Limit (2),
and it is in Current Limit (1).
LASER:COND?-response: 272, means that the Laser Output is shorted (turned off - 256) and its
Interlock pins are not connected (16).
C O M M A N D R E F E R E N C E
GPIB Command Reference
256 - Output is Shorted
512 - Output In Tolerance
1024 - Output On
2048 - n/a
4096 - n/a
8192 - n/a
16384 - n/a
32768 - n/a
4
C H A P T E R
45
LDC-3926339