HP 4284A - Page 329

*IDN?
*OPC
The *OPC command (op eration complete command) tells the
HP 4284A to set bit 0 (OPC bit) in the standard event status
register when it completes all pending operations. The *OPC?
command tells the HP 4284A to place an ASCII \1" (decimal 49)
in the HP 4284A's output buer when it completes all p ending
operations.
Command Syntax
*OPC
Example
OUTPUT 717;"*OPC" ! Set the HP 4284A to set OPC bit
! when the operation executed by previous command is completed.
Query Syntax
*OPC?
Query Response
Returned format is :
1<NL^END>
Where,
1 1 (ASCII, decimal 49)
Example
10 OUTPUT 717;"CORR:OPEN" ! Perform OPEN correction measurement
20 OUTPUT 717;"*OPC?" ! Wait for OPEN correction
30 ENTER 717;A ! measurement completed
40 END
*WAI
The *WAI command (the wait to continue command) makes the
HP 4284A wait until all previously sent commands are completed.
The HP 4284A then continues executing the commands that follo w
the *WAI command.
Command Syntax
*WAI
Example
OUTPUT 717;"*WAI"
8-88 Command Reference