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B-2
Status and Error Messages
Model 2520 User’s Manual
Introduction
This Appendix contains a summary of status and error messages, which status register bits
are set when messages occur, and methods to avoid or eliminate most common SCPI
errors.
Status and error messages
summarizes status and error messages, which are stored in the Error Queue.
Each message is preceded by a code number. Negative (-) numbers are used for SCPI-
defined messages, and positive (+) numbers are used for Keithley-defined messages. Note
that error and status conditions will also set specific bits in various status registers, as sum-
marized in
.
has detailed information on registers and queues. Briefly, you can use the fol-
lowing queries to obtain error and status information:
•
:SYST:ERR? — reads Error Queue.
•
*ESR? — reads Standard Event Status Register.
•
:STAT:OPER? — reads Operation Event Register.
•
:STAT:MEAS? — reads Measurement Event Register.
•
:STAT:QUES? — reads Questionable Event Register.
NOTE
SCPI-confirmed messages are described in volume 2: Command Reference of
the Standard Commands for Programmable Instruments. Refer to the :SYS-
Tem:ERRor? command.
Summary of Contents for 2520
Page 250: ...A Specifications ...
Page 254: ...B StatusandErrorMessages ...
Page 262: ...C DataFlow ...
Page 266: ...D IEEE 488BusOverview ...
Page 281: ...E IEEE 488andSCPI ConformanceInformation ...
Page 285: ...F MeasurementConsiderations ...
Page 308: ...G GPIB488 1Protocol ...
Page 312: ...H ExamplePrograms ...
Page 317: ...I ContinuousPulseMode ...