Agilent Technologies Signal Analyzer N9030a - Manual (Page 644)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Input/Output
--
:INIT:CONT OFF
:INIT:IMM;*WAI?
--
:INIT:CONT OFF
:READ?
--
:INIT:CONT OFF
:MEASure?
When the acquisition ceases, in addition to the error condition(s) described above, a popup error
message will be generated informing you that the acquisition has ceased due to an invalid
external reference. This message will stay on the screen while the acquisition is suspended.
If you press the Restart key this message will be taken off the screen and a new acquisition will
be attempted. If the External Reference problem persists the message will re-appear. You can also
remove the message by changing back to the Normal setting of Sweep/Ext Ref Coupling, or by
pressing Freq Ref In, Internal, or Freq Ref In, Sense, or Restore Input/Output Defaults.
The setting of External Ref Coupling is persistent across power-cycling and is not reset with a
Preset. It is reset to the default state (Normal) when Restore Input/Output Defaults is invoked, which
will also restart normal data acquisition.
The detection of invalid external reference is under interrupt processing. If the external reference
becomes invalid then returns to valid in too short a time, no error condition will be detected or
reported and therefore the acquisition will not be stopped.
644 Remote Language Compatibility Measurement Application Reference