Keithley 2450 Reference Manual page 821

Appendix C: Status model
Bit When set, indicates the following has occurred:
0 Operation complete: All pending selected instrument operations are complete and the instrument is
ready to accept new commands. The bit is set in response to an
opc() (on page 8-77) function.
1 Not used.
2 Query error: Attempt to read data from an empty Output Queue.
3 Device dependent error: An instrument operation did not execute properly due to an internal condition.
4 Execution error: The instrument detected an error while trying to execute a command.
5 Command error: A command error has occurred. Command errors include:
IEEE Std 488.2 syntax error: The instrument received a message that does not follow the defined
•
syntax of the IEEE Std 488.2 standard.
Semantic error: The instrument received a command that was misspelled or received an optional
•
IEEE Std 488.2 command that is not implemented in the instrument.
GET error: The instrument received a Group Execute Trigger (GET) inside a program message
•
6 User request: The instrument transitioned from remote control to local control.
7 Power-on: The instrument has been turned off and turned back on since the last time this register was
read.
You can use the following commands to read and set bits contained in the Standard Event Register.
Description
Read the Standard Event Status
Register
Set or read the OR bits in the
Standard Event Status Enable
Register
C-4
Model 2450 Interactive SourceMeter® Instrument Reference Manual
SCPI command
*ESR? (on page B-4)
*ESE (on page B-2)/ESE?
*OPC (on page B-6) command or TSP
TSP command
status.standard.event (on page 8-
164)
status.standard.enable (on page 8-
162)
2450-901-01 Rev. B/September 2013