Programming
3
Keysight 53147A/148A/149A Operating and Programming Guide
183
Transition filters are unaffected by
*CLS
or queries. Transition filters are set to
default values by
:STATus:PRESet
and power-on.
To write to the Operation Status transition filter registers use:
:STATus:OPERation:PTRansition
:STATus:OPERation:NTRansition
To read these registers use:
:STATus:OPERation:PTRansition?
:STATus:OPERation:NTRansition?
Event Register
An event register captures changes in conditions.
An event register bit (event bit) is set TRUE when an associated event occurs.
These bits, once set, are “sticky.” That is, they cannot be cleared even if they do
not reflect the current status of a related condition, until they are read.
To read the event registers use:
:STATus:OPERation[:EVENt]?
:STATus:QUEStionable[:EVENt]?
Use event register queries or
*CLS
to clear event registers.
Event Enable Register
An event enable register selects which event bits in the corresponding event
register can generate a summary bit.
To write the event enable registers use:
:STATus:OPERation:ENABle
:STATus:QUEStionable:ENABle
To read the event enable registers use:
:STATus:OPERation:ENABle?
:STATus:QUEStionable:ENABle?
The event enable registers are cleared by
:STATus:PRESet
and power-on.
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