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Bus Commands
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 the system.
Device Clear
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.
Group Execute Trigger (GET)
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 displays.
Interface Clear (IFC)
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
Bus Commands
2–6