User manual

Section 13: Instrument Control Library (ICL) Series 3700 System Switch/Multimeter Reference Manual
13-280 3700S-901-01 Rev. C / July 2008
status.standard.*
.condition
.enable
.event
Remarks
These attributes are used to read or write to the standard status 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 7.
For example, assume value 9 is returned for the enable register. The binary equivalent
is 00001001. 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 Series 3700 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 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 Series 3700 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 -- Series 3700 received a message that does not follow
the defined syntax of the IEEE-488.2 standard.
-Semantic error -- Series 3700 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 Series
3700 front panel was pressed.
Bit B7, Power ON (PON) - Set bit indicates that the Series 3700 has been turned
off and turned back on since the last time this register was read.
Example
Sets the PON bit of the standard event enable register:
status.standard.enable =
status.standard.PON