HP Water System HP VXI ユーザーズマニュアル

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Command Reference  
25
:OPERation:ENABle?
STATus:OPERation:ENABle?  returns which bits in the event register (Operation 
Status Group) are unmasked.
Comments
Reading the event register mask does not change the mask setting 
(STAT:OPER:ENAB <event>).
Related Commands:  STAT:OPER:ENABle
Example
Reading the Event Register Mask
STAT:OPER:ENAB?
Query register mask.
:OPERation[:EVENt]?
STATus:OPERation[:EVENt]?  returns which bits in the event register (Operation 
Status Group) are set.  The event register indicates when there has been a transition 
in the condition register.
Comments
Reading the event register clears the contents of the register.  If the event 
register is to be used to generate a service request (SRQ), you should clear the 
register before enabling the SRQ (*SRE).  This prevents an SRQ from 
occurring due to a previous event.
Related Commands:  STAT:OPER:ENABle, STAT:OPER:ENABle?
Example
Reading the Event Register
STAT:OPER:EVEN?
Query returns bit(s) set.
:PRESet
STATus:PRESet  Sets the Operation Status Enable and Questionable Data Enable 
registers to 0.  After executing this command, none of the events in the Operation 
Event or Questionable Event registers will be reported as a summary bit in either the 
Status Byte Group or Standard Event Group.  STATus:PRESet does not clear either 
of the Event registers.
Example
Presetting the Enable Register
STAT:PRES
Preset enable register.
:QUEStionable :CONDition?
STATus:QUEStionable:CONDition?  returns the state of the condition register in 
the Questionable Status Group.  The state represents conditions which are part of an 
instrument’s operation.