a 1 in the source Output Queue. The program waits at line 410 until the 1 returned by *OPC? is entered.

Note that following each OUTPUT containing a query is an ENTER to retrieve the queried value. If you do not use paired OUTPUTS and ENTERS, you can overwrite data in the instrument Output Queue and generate instrument errors.

470 to 480: Disconnect output terminals of the instruments from the unit under test, and end the program. All HP BASIC programs must have END as the last statement of the main program.

l-78 Getting Started Programming