Keithley 3700 series Reference Manual page 268

Section 9: Instrument Control Library (ICL)
errorqueue.next
Remarks
Details
Also see
Example
9-124

Entries are stored in a first-in, first-out (FIFO) queue. This function reads the oldest
entry and removes it from the queue.

Error codes and messages are listed in order.

If there are no entries in the queue, code 0, "Queue Is Empty" is returned.

Returned severity levels include the following:
0 Informational: Indicates no error: "Queue is Empty".
10 Informational: Indicates an event or a minor error. Examples: "Reading Available"
and "Reading Overflow".
20 Recoverable: Indicates possible invalid user input. Operation will continue but
action should be taken to correct the error. Examples: "Exponent Too Large" and
"Numeric Data Not Allowed".
30 Serious: Indicates a serious error and may require technical assistance. Example:
"Saved calibration constants corrupted".
40 Fatal: Indicates that the Series 3700 is non-operational and will require service.
Contact information for service is provided at the front of this manual.
In an expanded system, each TSP-Link enabled instrument is assigned a node
number. node returns the node number where the error originated.
See Error and status messages
(on page 8-1).
errorqueue.clear (on page 9-123),
Reads the oldest entry in the error/event queue:
errorcode, message = errorqueue.next()
print(errorcode, message)
Output: 0.000000e+00 Queue Is Empty
The above output indicates that the queue is empty.
Series 3700 System Switch/Multimeter Reference Manual
(see "Error codes" on page 13-1) and
errorqueue.count (on page 9-123)
Document Number: 3700S-901-01 Rev. A / August 2007
Status Model