1 Power Meter Remote Operation
86 N1911A/1912A P-Series Power Meters Programming Guide
Operation Status
The Operation Status group monitors conditions in the power meter’s
measurement process.
The Operation 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:
Table 1-9 Bit Definitions - Operation Status
8 CALibration Summary This is a summary bit for the Questionable CALibration Register.
– SET:
These may be caused by
CALibration[1|2]:ZERO:AUTO ONCE or
CALibration[1|2]:AUTO ONCE or
CALibration[1|2][:ALL] or
CALibration[1|2][:ALL]?.
Error –231, “Data questionable; ZERO ERROR”
Error –231, “Data questionable; ZERO ERROR ChA”
[a]
Error –231, “Data questionable; ZERO ERROR ChB”
[a]
Error –231, “Data questionable; CAL ERROR”
Error –231, “Data questionable; CAL ERROR ChA”
[a]
Error –231, “Data questionable; CAL ERROR ChB”
[a]
– CLEARED: When any of the commands listed above succeed and no errors are
placed on the error queue.
9 Power On Self Test – SET: This bit is set when the power on self test fails.
– CLEARED: When the power on self test passes.
[a] N1912A only
Bit Number Meaning EVENts Causing Bit Changes
Bit Number Decimal Weight Definition
0 1 CALibrating Summary
1 - 3 - Not used
4 16 MEASuring Summary
5 32 Waiting for TRIGger Summary
6 - 9 - Not used
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