Chapter 4 Remote Interface Reference
Status Reporting Commands
114
*ESR?
Query the Standard Event register. The power supply returns a decimal value which
corresponds to the binary-weighted sum of all bits in the register.
*OPC
Set the ‘‘Operation Complete’’ bit (bit 0) of the Standard Event register after the
command is executed.
*OPC?
Return ‘‘1’’ to the output buffer after the command is executed.
*PSC { 0 | 1 }
(Power-on status clear.) This command clears the Status Byte and the Standard Event
register enable masks when power is turned on (*PSC 1). When
*PSC 0 is in effect, the Status Byte and Standard Event register enable masks are
not cleared when power is turned on.
*PSC?
Query the power-on status clear setting. The returned parameter is ‘‘0’’
(*PSC 0) or ‘‘1’’ (*PSC 1).
*SRE <enable value>
Enable bits in the Status Byte enable register.
*SRE?
Query the Status Byte Enable register. The power supply returns a decimal value
which corresponds to the binary-weighted sum of all bits set in the enable register.
*STB?
Query the Status Byte summary register. The *STB? command is similar to a serial
poll but it is processed like any other instrument command. The *STB? command
returns the same result as a serial poll but the ‘‘Request Service’’ bit (bit 6) is not
cleared if a serial poll has occurred.
*WAI
Instruct the power supply to wait for all pending operations to complete before
executing any additional commands over the interface. Used only in the triggered
mode.
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