Bus Commands
Device Clear
Group Execute
Trigger (GET)
Interface Clear (IFC)
HP 1650B/HP 16518
Programming Reference
The following commands are IEEE
488.1
bus commands (ATN true).
IEEE 488.2 defines many of the actions which are taken when these
commands are received by an instrument.
The device clear (DCL) or selected device clear (SDC) commands clear
the input and output buffers, reset the parser, clear any pending
commands,
and clear the Request-OPC flag.
The group execute trigger command will cause the same action as the
START command for Group Run: the instrument will acquire data for
the active waveform and listing display(s).
This command halts all bus activity. This includes unaddressing all
listeners and the talker, disabling serial poll on all devices, and returning
control to the system controller.
Programming Over HP-IB
2-5
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