Keithley SourceMeter 2600 Series Reference Manual page 399

Series 2600 System SourceMeters Reference Manual
• This attribute is used to read or write to the standard event registers.
Remarks
• 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) – Set bit indicates that you attempted to read data
from an empty Output Queue.
• Bit B3, Device-Dependent Error (DDE) – Set bit indicates that an instrument
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) – Set bit indicates that the LOCAL key on the
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
can be used in place of the *OPC command. See Appendix C for details on
Register" in Appendix
Return to Section 12 topics
Instrument Control Library 12-125
D.
2600S-901-01 Rev. A / May 2006