Keysight N9010A EXA Service Guide 77Instrument MessagesIntroductionEvent Message FormatThe event messages are listed in numerical order according to their messagenumber. Advisory messages do not have numbers, and are listed inalphabetical order.An explanation is included with each error to further clarify its meaning. Someerrors are specified in industry standards and there are references to the IEEEStandard 488.2-1992, IEEE Standard Codes, Formats, Protocols and CommonCommands for Use with ANSI / IEEE Std 488.1-1987. New York, NY, 1992.Advisories Advisory messages tell the front panel user some useful information. (For example, “File savedsuccessfully” or “Measuring the fundamental”.)Advisory messages appear in the Status Panel at the bottom of the display. The message remainsuntil you press a key, or another message is displayed in its place.Advisory messages are not logged in the error queues.Grayout messages are a special type of Advisory, which appear when you attempt to access afunction that is not available. This could be a grayed out front panel key, or an inappropriate SCPIcommand. There are two types of grayout messages: Benign and Forced.1.Benign: the requested function is not available because it does not make sensewith the current instrument settings. Changing it does not affect the currentmeasurement. (For example, setting the number of FFTs/Span when you are not inthe FFT mode.)A benign grayout gives an Advisory type of message only when the front panelkey is pressed.The requested function cannot be changed from the front panel, but it can bechanged remotely.2.Forced: the requested function is not available either because changing it wouldcause an invalid measurement, or because of hardware limitations, or becausethe selection conflicts with other settings. (For example, selecting the electricalattenuator when the frequency span includes frequencies above 3.6 GHz.)A forced grayout function cannot be changed either from the front panel orremotely. It generates a special type of Advisory message. It also only appears onthe front panel when the key is pressed. Remotely, the message will appear in theevent queue as a warning “-221, Settings conflict; ”.
