STATus Subsystem 11
N1911A/1912A P-Series Power Meters Programming Guide 473
Device Status Register Sets
The status registers contain information which give device status
information. The contents of the individual registers of these register sets
may be accessed by appending the commands listed in “Status Register Set
Commands”.
The following command descriptions detail the SCPI register you require
to control but do not detail the register set commands.
The one device status register set is:
STATus:DEVice:
The following bits in these registers are used by the power meter:
The Channel A and B sensor connected bits (bits 1 and 2), when queried
with the STATus:DEVice:CONDition? query are set to:
• 1, when a power sensor is connected
• 0, when no power sensor is connected
The Channel A and B sensor connected bits (bits 1 and 2), when queried
with the STATus:DEVice:EVENt? query indicate whether a power sensor
has been connected or disconnected depending on the state of the
corresponding bits of STATus:DEVice:NTRansition and
STATus:DEVice:PTRansition. If the corresponding bit in:
• STATus:DEVice:NTRansition is 1, then STATus:DEVice:EVENt? is
Bit Number Decimal
Weight
Definition
0 - Not used
1 2 Channel A sensor connected
2 4 Channel B sensor connected (N1912A only)
3 8 Channel A sensor error
4 16 Channel B sensor error (N1912A only)
7-15 - Not used
14 16384 Front Panel key press
15 - Bit 15 always 0
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