Experimental Physics and
Industrial Control System

Philip Taylor wrote:

> I had imagined that the monitored events were queued
> and so I could never miss one - is this not the
> case when a state program is monitoring variables
> local to the IOC?

The monitored events _are_ queued by CA for both remote and
local PVs. The sequencer may be choosing to discard intermediate 
events that occur when it does not have the CPU (I had
a discussion with Andy several years ago concerning this and as I
recall he indicated that this was how the sequencer
was implemented - CA monitors are copied on to the 
sequencer's one entry deep cache).

Jeff


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Jeffrey O. Hill			Internet	[email protected]
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State Program misses monitored events Philip Taylor

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