Agilent Technologies ac power solutions 6813b User Manual

Language Dictionary - 3

This query reads the Standard Event Status Event register. Reading the register clears it.  The bit
configuration of this register is the same as the Standard Event Status Enable register (see *ESE). See
Chapter 4 under “Programming the Status Registers” for a detailed explanation of this register.

*ESE?

None

<NR1> (register value)

*CLS     *ESE     *ESE?     *OPC

This query requests the ac source to identify itself. It returns the data in four fields separated by commas.

*ESE?

None

<AARD>

       Information

Agilent Technologies

manufacturer

xxxxA

        model number

nnnnA-nnnnn

        serial number or 0

<R>.xx.xx

        firmware revision

Agilent Technologies, 6812B, 0, A.00.01

This command causes the interface to set the OPC bit (bit 0) of the Standard Event Status register when
the  has completed all pending operations. (see *ESE for the bit configuration of the Standard Event
Status registers.) Pending operations are complete when:

u

all commands sent before *OPC have been executed. This includes overlapped commands. Most
commands are sequential  and are completed before the next command is executed. Overlapped
commands are executed in parallel with other commands. Commands that affect output voltage
or state, relays, and trigger actions are overlapped with subsequent commands sent to the ac
source. The *OPC command provides notification that all overlapped commands have been
completed.

u

all triggered actions are completed and the trigger system returns to the Idle state.

*OPC does not prevent processing of subsequent commands but Bit 0 will not be set until all pending
operations are completed. The query causes the interface to place an ASCII "1" in the Output Queue
when all pending operations are completed.

*OPC

None

*OPC?

<NR1>

*TRIG     *WAI