Racal Instruments 1256E, Руководство пользователя

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1256E User Manual
Advanced SCPI Operations 8-8 Racal Instruments
©
2002
IMMediate | EXT }
The possible trigger sources are:
BUS The GPIB bus trigger, or the “*TRG” command,
advances to the next scan list element.
HOLD Triggers are ignored, and the scan list will not
advance.
IMMediate The scan list, once initiated, advances as fast as
possible after considering the relay settling time,
trigger input delay, and trigger output delay. The
Scan List operation is initiated by sending an
INIT:IMMEDIATE command (or
INIT:CONTINUOUS command).
EXT This selects the 1256 external trigger input line.
Each time a low-going pulse is received on the
line, the scan list advances to the next element.
After power-up, and after a *RST command, the trigger source is
set to IMMEDIATE.
The present trigger source may be queried using the
TRIGGER:SOURCE? query. The reply to this query will be one of
the following:
BUS
HOLD
IMM
EXT