5520A
Operators Manual
6-16
ERR?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Error query) Returns the first error code contained in the Calibrator error queue, then
removes that error code from the queue. Following the error code is an explanation of
the error code, similar to but sometimes containing more specific information than the
EXPLAIN? command. The explanation sent in response to this query can contain
variables specific to a particular error event. See Appendix E for a list of error codes and
error messages.
A zero value is returned when the error queue is empty. To read the entire contents of the
error queue, repeat ERR? until the response 0,”No Error” is returned. For terminal
users, the error queue Returns for ERR? is always 0,”No Error” because error
messages are returned instead of queued.
Response: <value>, (error code value)
<string> (text string explaining the error)
Example: ERR? returns 0,”No Error”
Returns 0,”No Error” when the error queue is empty.
ERR_UNIT
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(UUT Error Unit Thresh Hold command) Chooses how UUT error is shown (this iS
nonvolatile).
Parameter: GT1000 UUT error is displayed in % above 1000 ppm, ppm below
GT100 UUT error is displayed in % above 100 ppm, ppm below
GT10 UUT error is displayed in % above 10 ppm, ppm below
PPM UUT error is displayed in ppm always
PCT UUT error is displayed in % always
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