Specifications

3-16
Interrogating the Instrument Status
Operation Status Register Group
Interrogating the Condition and Event Registers
The Operation Status register group set is interrogated/programmed by the same method
as the Questionable Data Status register group, except the register group identifier is
changed. The following example gives the commands for interrogating the Condition and
Event registers.
Condition Register Query OUTPUT 718;“STATUS:OPERATION:CONDITION?”
Event Register Query OUTPUT 718;“STATUS:OPERATION:EVENT?”
Operation Status Transition Filter
The Operation Status register group Transition Filter value is set in the same way as the
Questionable Data Status register group that is, the “PTRANSITION” and
“NTRANSITION” commands.
A typical example would be as follows:
OUTPUT 718;“STATUS:OPERATION:PTRANSITION 8”
This sets the Transition Filter to pass a positive transition from the Condition register at
bit 3.
NOTE The transition filter passes positive transitions by default. To turn this
off for the Operation Status Transition Filter use:
OUTPUT 718;“STATUS:OPERATION:PTRANSITION 0”
Operation Event Enable Register
The Operation Event Enable register is enabled by sending the SCPI command shown in
the example below. This allows one or more event bits in the Operation Status register to
set the OPER summary bit in the Status Byte register.
OUTPUT 718;“STATUS:OPERATION:ENABLE 512”
If bit 9 is set in the Operation Event Enable register and the END PERIOD bit in the
Operation Event register goes true, then the OPER bit is set in the Status Byte.