Keithley 2182 User Manual page 213

Program example
The first group of commands send the *OPC command after the :INITiate command and
verifies that the OPC bit in the Standard Event Status Register does not set while the instrument
continues to make measurements (not in idle). The second group of commands returns the
Model 2182 to the idle state and verifies that the OPC bit did set.
SYST : PRES
INIT : CONT OFF
ABORt
INIT : IMM
*OPC
*ESR?
After addressing the Model 2182 to talk, the returned value of 0 denotes that the bit (bit 0) is
not set indicating that the :INITiate operation is not complete.
ABORt
*ESR?
After addressing the Model 2182 to talk, the returned value of 1 denotes that the bit (bit 1) is
set indicating that the :INITiate operation is now complete.
SYST : PRES
NOTE The following commands take a long time to process and may benefit from using
*OPC or OPC?:
*RST and SYST:PRES
*RCL and *SAV
CALC2:IMM and CALC2:IMM? – Only when performing the standard deviation
calculation on a large buffer.
RS-232 operation can also benefit from *OPC.
' Return 2182 to default setup.
' Disables continuous initiation.
' Aborts operation. Places 2182 in idle.
' Initiate one trigger cycle.
' Sends the OPC command
' Reads the Standard Event Status Register.
' Aborts operation. Places 2182 in idle.
' Reads the Standard Event Status Register.
' Returns 2182 to default setup.
Common Commands 12-9