HP 34970A manual Vx z, Extw tx x

Chapter 4 Features and Functions

System-Related Operations

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When the front-panel ERROR annunciator turns on, one or more command syntax or hardware errors have been detected. A record of up to 10 errors is stored in the instrument’s xxx5 fxx v“t B

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∙Errors are retrieved in first-in-first-out (FIFO) order. The first error returned is the first error that was stored. Errors are cleared as you read them. When you have read all errors from the queue, the ERROR annunciator turns off and the errors are cleared. The instrument beeps once each time an error is generated.

∙If more than 10 errors have occurred, the last error stored in the

queue (the most recent error) is replaced with “Rxx xy		”.
No additional errors are stored until you remove errors from the
queue. If no errors have occurred when you read the error queue,
the instrument responds with “a x	”.

∙The error queue is cleared by the *CLS (clear status) command or when power is cycled. The errors are also cleared when you read the

queue. The error queue ” cleared by a Factory Reset (*RST command) or an Instrument Preset (SYSTem:PRESet command).

∙ Sctxt” :

ERRORS

If the ERROR annunciator is on, press to view the errors. Use the knob to scroll through the error numbers. Press to view the text of the error message. Press again to increase the scrolling speed (the final key press cancels the scroll). All errors are cleared when you exit the menu.

∙ exx Vxytvx bxt”	:
SYSTem:ERRor?	extw tx x “x

Errors have the following format (the error string may contain up to 80 characters):

-113,"Undefined header"

142