STATus Subsystem
Status register programming lets you determine the operating condition of the instrument at any time.
The instrument has three groups of status registers; Operation, Questionable, and Standard Event.
The Operation and Questionable status groups each consist of the Condition, Enable, and Event
registers as well as NTR and PTR filters.
The Status subsystem is also programmed using Common commands. Common commands control
additional status functions such as the Service Request Enable and the Status Byte registers. Refer to
Status Tutorial for more information.
STATus:OPERation[:EVENt]
Queries the event register for the Operation Status group. This is a read-only register, which stores
(latches) all events that are passed by the Operation NTR and/or PTR filter. Reading the Operation
Status Event register clears it.
Parameter Typical Return
(none) <bitvalue>
Read the operation status event register: STAT:OPER?
l The value returned is the binary-weighted sum of all enabled bits in the register. For example,
with bit 3 (value 8) and bit 5 (value 32) set and enabled, the query returns +40.
l *RST has no effect on this register.
STATus:OPERation:CONDition?
Queries the condition register for the Operation Status group. This is a read-only register, which holds
the live (unlatched) operational status of the instrument. Reading the Operation Status Condition
register does not clear it.
Parameter Typical Return
(none) <bitvalue>
Read the operation status condition register: STAT:OPER:COND?
l The value returned is the binary-weighted sum of all enabled bits in the register. For example,
with bit 3 (value 8) and bit 5 (value 32) set and enabled, the query returns +40.
l The condition register bits reflect the current condition. If a condition goes away, the cor-
responding bit is cleared.
l *RST clears this register, other than those bits where the condition still exists after *RST.
Keysight RP7900 Series Operating and Service Guide 221
5 SCPI Programming Reference
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