--
Commands
ALL
OPC
<[ON)
or
OFF>
ALL
ROS
<[ON)
or
OFF>
ALL
EVEnt?
Options and
Accessories-2230
Operators
Table 7-32
Service Request Group Commands
Description
When
ON,
the oscilloscope sends a service request upon completion
of
certain
system events (if ROS
is
also
ON).
Events that request service when completed
with OPC
ON
include: Acquisition completed,
and
plot completed. When off,
OPC (operation completed) events do not generate a service request. The
power-on state of OPC
is
OFF.
When
ON,
the oscilloscope sends a service request (SRO) when it has
an
event
to report. When
OFF,
event codes of different priority still accumulate
and
may
be
retrieved with
an
EVEnt? query, but the reply to ST Atus? will
be
a
0.
The
power-on
and
default states of ROS
are
ON.
Returns
an
<NR1 > value that
is
the code number for oldest service-request
event (if multiple events are pending). If no events are pending, <NR1 >
is
0.
Multiple events
of
different priority
are
retrieved by sending EVEnt? until O is
returned. Querying the event clears the service request.
7-45
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