Agilent Technologies N1911A Programming Manual page 213

Query Example
CALC2:LIM:UPP:DATA?
The query returns the current setting of the upper limit or the values
associated with MIN and MAX for the specified window/measurement.
N1911A/1912A P-Series Power Meters Programming Guide
This command queries the setting of the
upper limit for the lower window/upper
measurement.
CALCulate Subsystem 3
185