![background image](http://html2.mh-extra.com/html/keithley/system-sourcemeter-2601b/system-sourcemeter-2601b_reference-manual_4009934827.webp)
Appendix E: Status model
Series 2600B System SourceMeter® Instrument Reference Manual
E-20
2600BS-901-01 Rev. B / May 2013
For example, either of the following commands will set the EXT enable bit:
status.system.enable = status.system.EXT
status.system.enable = 1
When reading a register, a numeric value is returned. The binary equivalent of this value indicates
which bits in the register are set. For details, see
Reading registers
(on page E-15). For example, the
following command will read the System Enable Register:
print(status.system.enable)
The used bits of the system event registers are described as follows:
•
Bit B0, Extension Bit (EXT):
Set bit indicates that an extension bit from another system status
register is set.
•
Bits B1-B14* NODEn:
Indicates a bit on TSP-Link node
n
has been set (
n
= 1 to 64).
*
status.system5
does not use bits B9 through B15.
Standard Event Register
The bits used in the Standard Event Register are described as follows:
•
Bit B0, Operation Complete (OPC):
Set bit indicates that all pending selected device operations
are completed and the Series 2600B instrument is ready to accept new commands. The bit is set
in response to an *OPC command. The
opc()
function can be used in place of the *OPC
command. See
Common commands
(on page D-1) for details on the *OPC command.
•
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 Series 2600B instrument 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 Std 488.2 syntax error: The Series 2600B instrument received a message that does not follow the
defined syntax of IEEE Std 488.2.
•
Semantic error: Series 2600B instrument received a command that was misspelled or received an
optional IEEE Std 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 2600B
instrument front panel was pressed.
•
Bit B7, Power ON (PON):
Set bit indicates that the Series 2600B instrument has been turned off
and turned back on since the last time this register was read.
Summary of Contents for System SourceMeter 2601B
Page 841: ......