Keithley 2601 Reference Manual page 363

Series 2600 System SourceMeter® Instruments Reference Manual
Remarks • This attribute is used to read or write to the standard event registers.
• Reading a status register returns a value. The binary equivalent of the returned value
indicates which register bits are set. The least significant bit of the binary number is bit 0,
and the most significant bit is bit 15.
• For example, assume value 9 is returned for the enable register. The binary equivalent is
0000000000001001. This value indicates that bit 0 (OPC) and bit 3 (DDE) are set.
• The used bits of the standard event status register are described as follows:
Bit B0, Operation Complete (OPC) – Set bit indicates that all pending selected
•
device operations are completed and the SourceMeter is ready to accept new
commands. The bit is set in response to an *OPC command. The ICL function
opc()
*OPC
• Bit B2, Query Error (QYE)
empty Output Queue.
• Bit B3, Device-Dependent Error (DDE)
operation did not execute properly due to some internal condition.
Bit B4, Execution Error (EXE) – Set bit indicates that the SourceMeter detected
•
an error while trying to execute a command.
Bit B5, Command Error (CME) – Set bit indicates that a command error has
•
occurred. Command errors include:
IEEE-488.2 syntax error — SourceMeter received a message that does not follow the
defined syntax of the IEEE-488.2 standard.
Semantic error — SourceMeter received a command that was misspelled or received
an optional IEEE-488.2 command that is not implemented.
The instrument received a Group Execute Trigger (GET) inside a program message.
• Bit B6, User Request (URQ)
SourceMeter front panel was pressed.
• Bit B7, Power ON (PON) – Set bit indicates that the SourceMeter has been
turned off and turned back on since the last time this register has been read.
Details See "Standard Event
Example Sets the PON bit of the standard event enable register:
status.standard.enable = status.standard.PON
2600S-901-01 Rev. C / January 2008
can be used in place of the *OPC command. See Appendix C for details on
–
Set bit indicates that you attempted to read data from an
– Set bit indicates that the LOCAL key on the
Register" in Appendix
Return to Section Topics
–
Set bit indicates that an instrument
D.
Section 12: Instrument Control Library
12-103