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*OPC
Syntax:
*PRE
Syntax:
*RST
Syntax:
2706 RF Preselector
The *OPC (Operation Complete) command sets the operation complete bit in the
Standard Event Status Register as soon as it is received. *OPC? places the
ASCII character 1 into the Output Queue and sets the MAV status bit as soon as
it is received. Because the Preselector executes commands sequentially, you do
not need to use the *OPC and *OPC? commands in your programs. The OPC
and *OPC? commands are included for IEEE compatibility.
Related commands: *OPT, *WAI.
*OPC
*OPC?
The *PRE (Parallel Poll Register Enable) command sets and queries the status of
parallel polling. *PRE sets the Parallel Poll Enable Register (PPER) that is used
with the Status Byte Register to determine how the Preselector responds during a
parallel poll. *PRE? returns the contents of the PPER.
Related commands: *CLS, *ESR, *SRE, *STB.
*PRE <NR1>
*PRE?
<NR1> is an integer value in the range from 0 through 255. The binary bits of
the PPER are set according to this value.
The *RST (Reset) command returns the Preselector to a known set of instrument
settings. *RST does the following:
H Puts the Preselector into the Operation Complete Command Idle State.
H Puts the Preselector into the Operation Complete Query Idle State.
H Puts the Preselector in BYPASS mode.
The *RST command does not alter the following:
H The state of the IEEE 488.1 interface.
H The Standard Event Status Enable setting.
*RST
Appendix B: Using the GPIB Interface
B–7
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