BNC 835 Programmer Manual - Manual (Page 20)

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4.7 Status Group Reporting
The state of certain BENCHTOP MICROWAVE SOURCE hardware and operational events and
conditions can be determined by programming the status system. Three lower status groups provide
status information to the Summary Status Byte group. The Summary Status Byte group is used to
determine the general nature of an event or condition and the other status groups are used to
determine the specific nature of the event or condition.
Summary Status Byte Group
The Summary Status Byte group, consisting of the Summary Status Byte Enable register and the
Summary Status Byte, is used to determine the general nature of an BENCHTOP MICROWAVE
SOURCE event or condition. The bits in the Summary Status Byte provide the following:
Operation Status Group
The Operation Status group, consisting of the Operation Condition register, the Operation Positive
Transition register, the Operation Negative Transition register, the Operation Event register and the
Operation Event Enable register.
4.8 Standard Event Status Group
The Standard Event Status group, consisting of the Standard Event Status register (an Event register)
and the Standard Event Status Enable register, is used to determine the specific event that set bit 5 of
the Summary Status Byte.
The bits in the Standard Event Status register provide the following:
Bit
Description
0 Set to indicate that all pending BENCHTOP MICROWAVE SOURCE operations were
completed following execution of the “*OPC” command.
1 Request control
2 Set to indicate that a query error has occurred. Query errors have SCPI error codes from –499
to –400.
3 Set to indicate that a device-dependent error has occurred. Device-dependent errors have
SCPI error codes from –399 to –300 and 1 to 32767.
4 Set to indicate that an execution error has occurred. Execution errors have SCPI error codes
from –299 to –200.
5 Set to indicate that a command error has occurred. Command errors have SCPI error codes
from –199 to –100.
6 User request
7 Power on
Standard Event Status Enable register (ESE commands)