ILX Lightwave FPM-8200, User Manual

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G P I B C O M M A N D R E F E R E N C E
GPIB Command Reference
44
FPM-8200
C H A P T E R
4

GPIB Command Reference
Each GPIB command the FPM-8200 responds to is listed on the following pages
in alphabetical order. Each command name is given in correct syntax, is identified
as a common or device dependent command, and whether it duplicates a front
panel action.
Action Adjusts the internal analog to digital (A/D) converter to reference points, then reports results.
Results Zero = OK
Non−zero = calibration error
Note A/D referencing is performed each 10 minutes of inactive time.
Example *CAL?
Action Sets a gain factor to be applied to all FPM−8200 measurements.
Value range 0.500 to 2.500
Indicators Front panel USER CAL indicator is ON when the gain factor is any other value than 1.000.
Examples CAL:USER .5˙Results are half their normal value
CAL:USER 1.01˙Results are increased by 1%
Action Requests the FPM−8200 user−cal gain value.
Response A value between 0.500 and 2.500.
Examples CAL:USER? ˙Response 1.000 means there is no user calibration gain factor.
CAL:user? ˙Response 1.010 means a user−calibration gain factor is increasing all results by 1%.
Action Clears status event registers: Event Status, Event Status Enable, and Error Queue.
Note Useful to clear registers before enabling service requests (SRQ).
Example * CLS
*CAL? C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
CAL:USER <nrf value> C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
CAL:USER? C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
*CLS C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL