Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-83
Usage
errorCode, message, severity, errorNode = errorqueue.next()
errorCode
The error code number for the entry
message
The message that describes the error code
severity
The severity level (0, 10, 20, 30, or 40); see Details for more information
errorNode
The node number where the error originated
Details
Entries are stored in a first-in, first-out (FIFO) queue. This functions reads the oldest entry and removes it from
the queue.
Error codes and messages are listed in the Error summary list
(on page 8-3).
If there are no entries in the queue, code 0, "Queue is Empty" is returned.
Returned severity levels are described in the following table.
Number Error level Description
0 NO_SEVERITY
The message is information only. This level is used when the error
queue is empty; the message does not represent an error.
10 INFORMATIONAL
The message is information only. This level is used to indicate status
changes; the message does not represent an error.
20 RECOVERABLE
The error was caused by improper use of the instrument or by conditions
that can be corrected. This message indicates that an error occurred.
The instrument is still operating normally.
30 SERIOUS
There is a condition that prevents the instrument from functioning
properly. The message indicates that the instrument is presently
operating in an error condition. If the condition is corrected, the
instrument will return to normal operation.
40 FATAL
There is a condition that cannot be corrected that prevents the
instrument from functioning properly. Disconnect the DUT and turn the
power off and then on again. If the error is a hardware fault that persists
after cycling the power, the instrument must be repaired.
In an expanded system, each TSP-Link enabled instrument is assigned a node number. The variable
errorNode stores the node number where the error originated.
Example
errorcode, message = errorqueue.next()
print(errorcode, message)
Reads the oldest entry in the error queue. The
output below indicates that the queue is empty.
Output:
0.00000e+00 Queue Is Empty
Also see
Error queue (on page E-3)
errorqueue.clear()
(on page 7-82)
errorqueue.count
(on page 7-82)
Error summary list
(on page 8-3)

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English