ANALYZER STATUS
REGISTER
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Description
The following is the status register structure of the swept signal
generator when the analyzer programming language is selected. This
status structure is the structurally and syntactically the same as on
the HP/Agilent 8340/41.
OS
(2B) Output Status bytes, is used to read the two 8-bit status
bytes from the swept signal generator. The rst status byte
concerns the cause of an SRQ (Service Request), while the
second status byte concerns failures and faults, as follows:
STATUS BYTE (#1)
Bit # 7 6 5 4 3 2 1 0
Decimal
Value
128 64 32 16 8 4 2 1
Function
SRQ on new
frequencies
or sweep
time in
eect.
REQUEST
SERVICE
(RQS)
SRQon
GPIB or
syntax error.
SRQon
End of
Sweep
SRQon
RF Settled
SRQon
Changed in
Extended
Status
Byte
SRQon
Numeric
Entry
Completed
(GPIB or
Front
Panel)
SRQon
AnyFront
Panel Key
Pressed
EXTENDED STATUS BYTE (#2)
Bit # 7 6 5 4 3 2 1 0
Decimal
Value
128 64 32 6 8 4 2 1
Function
Fault
Indicator
On
RF Unleveled Power
Failure
RF Unlo cked External
Frequency
Reference
Selected
Oven
Cold
Over
Mo dulation
Self Test
Failed
Status Byte 1
Bit 0: SRQ caused byakey closure on the front panel of the swept
signal generator (use the OM co de to determine the front panel
status).
Bit 1: SRQ caused by the completion of a numeric entry (use the OA
co de to determine the value of the numerical entry).
Bit 2: SRQ caused byachange in the extended status byte (status
byte 2) aected by the RE-coded mask (see the RE co de for an
explanation of this masking).
A-20 Operating and Programming Reference
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