HP ESA-E Series Programmer's Manual page 60

HP ESA Status Registers
Using the Analyzer Status Registers
The Questionable Status Calibration event enable register lets you
choose which bits will set the calibration summary bit (bit 8 of the
Questionable Status Register) to 1. Send the command
:STATus:QUEStionable:CALibration:ENABle <num> where <num> is
the sum of the decimal values of the bits you want to enable. For
example, to enable bit 11 and bit 3 so that whenever either of those bits
is set to 1, the Questionable Status Calibration summary bit of the
Questionable Status Calibration condition register will be set to 1, send
the command :STATus:QUEStionable:CALibration:ENABle 2056
(2048 + 8). The command
:STATus:QUEStionable:CALIbration:ENABle? returns the decimal
value of the sum of the bits previously enabled with the
:STATus:QUEStionable:CALibration:ENABle <num> command.
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