EXFO PM-1100 Optical Power Meter - Manual (Page 97)

Remote Control Commands
Optical Power Meter 87
Product-Specific Commands—Description
READ[:SCALar]:POWer:DC?
Description This query returns the measurement currently read by the
PM-1100 (whether the unit is in absolute power or relative
mode).
Syntax READ[:SCAL]:POW:DC?
Response A measurement in the “±999.999E±99” format. To know the
current measurement units, use the SENS:POW:UNIT? query.
Example READ:SCAL:POW:DC?
See also FETC:SCAL:POW:DC?, INIT:CONT, INIT:CONT?, and INIT:IMM