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Status and Events
PS2520G and PS2521G Programmer Manual
45
STAT:OPER:COND
Condition
Register
To SBR
STAT:QUES:COND
STAT:OPER:ENAB
Enable
Register
STAT:QUES:ENAB
STAT:OPER:[EVEN]?
Event
Register
STAT:QUES:[EVEN]?
Figure 9: Status Registers and Related Commands
The CONDition register is a read-only register that monitors the
current state of the instrument. The CONDition register updates in
real time and the inputs are not latched or buffered. When a
condition monitored by the CONDition register becomes true, the bit
for that condition also becomes true (1). When the condition is false,
the bit is 0.
The read-only EVENt register latches any false-to-true change in
condition. Once the bit in the EVENt register is set, it is no longer
affected by changes in the corresponding bit of the CONDition
register. The bit remains set until the controller reads it. The
command *CLS (Clear Status) clears the EVENt registers.
ENABle registers control the reporting of events latched in the
EVENt registers. The QUEStionable Enable Register, for example,
sets the summary bit (3) of the Status Byte Register true only if one
or more of the bits in the QUEStionable Event Register are true. The
programmable power supply can assert SRQ (Service Request) on
the GPIB only after the ENABle register sets the summary bit true.
OPERation Status Registers. Although the OPERation Status
Registers are present, the programmable power supplies do not use
them to report any status information.