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Section 6: 9100 System Operation — SCPI Language
Final Width = 215mm
6.6.6
SYSTem Subsystem
This subsystem collects the functions that are not related to 9100 performance.
6.6.6.1
SYSTem Subsystem Table
Keyword
Parameter Form
Notes
SYSTem
:ERRor?
[Query Only]
:DATE(?)
<SPD>
:TIME(?)
<SPD>
:SVOLtage(?)
<DNPD>
:VERSion?
[Query Only]
:FORmat?
[Query Only]
6.6.6.2
SYST:ERR?
The Error Queue
As errors in the 9100 are detected, they are placed in a 'first in, first out' queue, called the 'Error Queue'. This queue conforms to
the format described in the SCPI Command Reference (Volume 2), although errors only are detected. Three kinds of errors are
reported in the Error Queue, in the sequence that they are detected:
Command Errors, Execution Errors and Device-Dependent errors
Queue Overflow
Any time the Error Queue overflows, the earliest errors remain in the queue, and the most-recent error is discarded. the latest error
in the queue is replaced by the error:
-350,"Queue overflow"
.
Purpose of
SYST:ERR?
— Reading the Error Queue
This query is used to return any error which has reached the head of the Error Queue, and delete the error from the queue. The
Error Queue is first in / first out, so the returned string will represent the earliest error in the queue.
The queue is read destructively as described in the SCPI Command Reference to obtain a code number and error message. The query
can be used successively to read errors in the queue until it is empty, when the message
0,"No error"
will be returned.
Response
The response is in the form of 'String Program Data', and consists of two elements: a code number and error message.
The list of possible responses is given in Appendix 'A' to Section 8.
