Table of Contents
Advertisement
Advanced SCPI Operations 8-8
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
1256E User Manual
IMMediate | EXT }
Racal Instruments © 2002
Advertisement
Table of Contents
