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Chapter 5 Command Reference
Operating Status
Operating and Programming Guide 5-61
Monitoring Status/Alarm Conditions ___________
(continued)
!
Reading and Qualifying Receiver Status (continued)
This query reads the specified event register (figures 5-3 and 5-1), retrieving
information about what has happened to the instrument since it was last
queried, or cleared by :SYSTem:PRESet or *CLS.
Expanded Syntax
:STATus:OPERation:EVENt?
:STATus:QUEStionable:EVENt?
:STATus:OPERation:HARDware:EVENt?
:STATus:OPERation:HOLDover:EVENt?
:STATus:OPERation:POWerup:EVENt?
Response
The range is 0 to 65535.
The response value represents the sum of the binary-weighted values of the
register. The value of unused bits is zero.
Side Effects
Reading/Querying an event register clears it.
Theory
An event register captures changes in conditions. When a transition occurs, the
corresponding bit in the event register is set TRUE. The instrument can be
configured (using :STATus:<register>:NTRansition and
:STATus:<register>:PTRansition), for each bit position, to capture the positive,
the negative, either, or neither transition.
Event register bits, once set, are latched. That is, they remain set until they are
read. When they are read, they are cleared.
At powerup, the event registers are cleared.
See Also
:STATus:<register>:NTRansition . . .
:STATus:<register>:PTRansition . . .
:STATus:<register>:EVENt?
RESPONSE FORMAT
Reads the specified event register.
±
dd