BNC 645 - Manual (Page 170)

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B.5 IEEE-488 Compliance Information
The SCPI commands used in Model 645 are in conformance with the SCPI
standard Version 1992.0. The common commands are listed below:
*CLS
*ESE<NRf>
*ESE?
*ESR?
*IDN?
*LRN?
*OPC
*OPC?
*PSC {0|1}
*PSC?
*RCL<0︱1︱2︱3︱4>
*RST
*SAV<0︱1︱2︱3︱4>
*SRE<NRf>
*SRE?
*STB?
*TRG
*TST?
*WAI
B.6 Using Device Clear to Halt Measurements
Device Clear is a special IEEE-488 low-level bus message. It is designed
to be used to return the waveform generator to a responsive state.
Different programming languages and IEEE-488 interface cards provide
their own special commands to perform this function. The status
registers, the error queue, and all configuration states are left intact
when a device clear is performed. In particular, device clear performs the
following actions: