System:rwlock[:State]; System:beeper; Status:questionable[:Event] - ITech CalPower IT6302 Programming Manual

Command syntax
SYST:LOC
Arguments
None

SYSTem:RWLock[:STATe]

This command is transmit through RS232 interface, the same function as
SYSTem:REMote,
"LOCAL" button as well. When this command is executed, the "Local"
button can't switch to local control mode.
Command syntax
SYST:RWL
Arguments
None

SYSTem:BEEPer

This order is used to test the beeper, after execute this order, the power supply
will issue a beep sound.
Command syntax
SYSTem:BEEPer
Arguments
None

STATus:QUEStionable[:EVENt]?

This command can be used to read the value in query event register. After
executing this
Query syntax
STATus:QUEStionable[:EVENt]?
Arguments
None
Returns
<NR1>
Related Command
STATus:QUEStionable:ENABle
but the difference is: this command can lock
command, the query event register will be cleared.
Copyright© Itech Electronics Co., Ltd.
System Commands
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