D-18 Status Model Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006 Return to Appendix D topics
Standard Event Register
The bits used in the Standard Event Register (shown in Figure D-8) 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() can be used in place of the *OPC command. See
Appendix C for details on *OPC.
• Bit B1 — Not used.
• 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.
Commands to program and read the register are summarized in Table D-5, and
bits are summarized in Table D-6.
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