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System Functions
System
Execute Expired Alignments (Remote Command Only)
Alignments can be expired in the situation where Auto Align is in the state of Partial or Off. This feature
runs the alignments that have expired. This is different than performing an Align All, Now operation.
Align All, Now performs an alignment of all subsystems regardless of whether they are needed or not,
with Execute Expired Alignments, only the individual subsystems that have become due are aligned.
Align Now
Accesses alignment processes that are immediate action operations. They perform complete operations
and run until they are complete.
All
Immediately executes an alignment of all subsystems. The instrument stops any measurement currently
underway, performs the alignment, then restarts the measurement from the beginning (similar to pressing
the
Restart key).
If an interfering user signal is present at the RF Input, the alignment is performed on all subsystems
except the RF. After completion, the Error Condition message “Align skipped: 50 MHz interference” or
“Align skipped: 4.8 GHz interference” is generated. In addition the Error Condition message “Align
Now, RF required” is generated, and bits 11 and 12 are set in the Status Questionable Calibration
register.
The query form of the remote commands (:CALibration[:ALL]? or *CAL?) invokes the alignment of all
subsystems and returns a success or failure value. An interfering user signal is not grounds for failure; if
the alignment was able to succeed on all portions but unable to align the RF because of an interfering
signal, the resultant will be the success value.
Successful completion of
Align Now, All will clear the “Align Now, All required” Error Condition, and
clear bit 14 in the Status Questionable Calibration register. It will also begin the elapsed time counter for
Last Align Now, All Time, and capture the Last Align Now, All Temperature.
Mode: All
Example: :CAL:AUTO:ALER NONE
Initial S/W Revision: Prior to A.02.00
Mode: All
Remote Command: :CALibration:EXPired?
Example: :CAL:EXP?
Notes: :CALibration:EXPired? returns 0 if successful
:CALibration:EXPired? returns 1 if failed
Initial S/W Revision: Prior to A.02.00
Key Path:
System, Alignments
Initial S/W Revision: Prior to A.02.00