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Chapter 5, Reference (Alphabetical)
HP-IB Control Annunciators
HP-IB Control Annunciators
The words, letters, and symbols at the top right corner of the CRT display indicate
these conditions:
• R indicates remote operation from an external controller or IBASIC program in the test
set. This letter will be displayed while the software is running.
• L indicates that the test set is listening, and is ready to receive a manual or remote
command.
• T indicates that the test set is talking to another HP-IB device.
• S indicates that a service request has been generated.
• C indicates that the test set is currently an active controller. Control mode is set on the
I/O CONFIGURE screen. The test set must be a controller if HP-IB peripherals are to
be controlled.
• * indicates that an IBASIC program is running, or that the IBASIC controller is
executing a command.
• ? indicates that an IBASIC program is waiting for a user response.
• - indicates that the IBASIC program is paused.
• SHIFT indicates that the SHIFT key was pressed, and that the next key entry will be
shifted. (Press SHIFT again to clear).