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Section 13: Status Structure
Figure 13-4
Standard event status
OR
To Event
Summary Bit
(ESB) of Status
Byte Register
•
Bit B0, Operation Complete (OPC): Set bit indicates that all pending selected device
operations are completed and the Model 6482 is ready to accept new commands. This bit
only sets in response to the *OPC? query command. See
and *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 because of an internal condition.
•
Bit B4, Execution Error (EXE): Set bit indicates that the Model 6482 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:
•
•
•
•
Bit B6, User Request (URQ): Set bit indicates that the LOCAL key on the
Model 6482 front panel was pressed.
•
Bit B7, Power ON (PON): Set bit indicates that the Model 6482 has been turned off and
turned back on since the last time this register was read.
13-10
*ESR?
—
PON
(B15 - B8)
(B7)
&
*ESE
—
PON
*ESE?
(B15 - B8)
(B7)
PON = Power on
URQ = User request
CME = Command error
EXE = Execution error
IEEE-488.2 syntax error: Model 6482 received a message that does not follow the
defined syntax of the IEEE-488.2 standard.
Semantic error: Model 6482 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.
Return to
Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
URQ
CME
EXE
DDE
(B6)
(B5)
(B4)
(B3)
&
&
&
&
URQ
CME
EXE
DDE
(B6)
(B5)
(B4)
(B3)
DDE = Device-dependent error
QYE = Query error
OPC = Operation complete
&
= Logical AND
OR
= Logical OR
Section Topics
Standard
QYE
—
OPC
Event Status
(B2)
(B1)
(B0)
Register
&
&
Standard
Event Status
QYE
—
OPC
Enable
(B2)
(B1)
(B0)
Register
Section 14
for details on *OPC
6482-901-01 Rev. A / August 2012
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