Keithley SourceMeter 2600 Series Reference Manual page 369

Series 2600 System SourceMeters Reference Manual
status.condition
Attribute Status byte register.
Usage Reads the status byte register:
statbyte = status.condition
• This attribute is used to read the status byte, which is returned as a numeric value.
Remarks
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 129 is returned for the enable register. The binary
equivalent is 10000001. This value indicates that bit B0 (MSB) and bit B7 (OSB) are
set.
• The bits of the status byte register are described as follows:
• Bit B0, Measurement Summary Bit (MSB) – Set summary bit indicates that an
enabled measurement event has occurred.
• Bit B1, System Summary Bit (SSB) – Set summary bit indicates that an enabled
system event has occurred.
• Bit B2, Error Available (EAV) – Set summary bit indicates that an error or status
message is present in the Error Queue.
• Bit B3, Questionable Summary Bit (QSB) – Set summary bit indicates that an
enabled questionable event has occurred.
• Bit B4, Message Available (MAV) – Set summary bit indicates that a response
message is present in the Output Queue.
• Bit B5, Event Summary Bit (ESB) – Set summary bit indicates that an enabled
standard event has occurred.
• Bit B6, Request Service (RQS)/Master Summary Status (MSS) – Set bit
indicates that an enabled summary bit of the Status Byte Register is set.
Depending on how it is used, Bit B6 of the Status Byte Register is either the
Request for Service (RQS) bit or the Master Summary Status (MSS) bit:
• When using the GPIB serial poll sequence of the SourceMeter to obtain the
• When using
• Bit B7, Operation Summary (OSB) – Set summary bit indicates that an enabled
operation event has occurred.
Details See "Status byte and service request
Example Reads the status byte:
statbyte = status.condition
print(statbyte)
Output:
The above output indicates that bits B0 (MSS) and B7 (OSB) are set.
status byte (serial poll byte), B6 is the RQS bit.
status.condition
status byte, B6 is the MSS bit.
1.29000e+02
Return to
Instrument Control Library 12-95
or the *STB? common command to read the
(SRQ)" in Appendix
Section 12 topics 2600S-901-01 Rev. A / May 2006
D.