Power Meter Remote Operation 1
N1911A/1912A P-Series Power Meters Programming Guide 61
The standard event register is cleared when you:
•send a *CLS (clear status) command.
• query the event register using the *ESR? (event status register)
command.
The standard event enable register is cleared when you:
• cycle the instrument power.
•execute a *ESE 0 command.
Questionable Status Register
The questionable status register provides information about the quality of
the power meter’s measurement results. Any or all of these conditions can
be reported in the questionable data summary bit through the enable
register. You must write a value using the STATus:QUEStionable:ENABle
command to set the enable register mask.
The questionable status model is shown in the pullout at the end of this
chapter.
The following bits in these registers are used by the power meter.
3 8 Device Error
A device error occurred, refer to error numbers 310 to 350 in the
user’s guide.
4 16 Execution Error
An execution error occurred, refer to error numbers 211 to 241
in the user’s guide.
5 32 Command Error
A command syntax error occurred, refer to error numbers 101 to
161 in the user’s guide.
6 64 User request.
7128Power On
Power has been turned off and on since the last time the event
register was read or cleared.
Bit
Number
Decimal
Value
Definition
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