Experimental Physics and
Industrial Control System

[email protected] (William Lupton) · Thu, 12 Mar 1998 08:47:37 -1000

Dear all,

Tim Mooney wrote:
> The transition to "busy" need not be prompt if your completion detector
> looks for a *transition* from "busy" to "ready" instead of looking only
> at the level of the signal.  The wait record is great for this because
> it can be instructed to execute its output link only on a transition.
> (The full list of possibilities is "Every Time", "On Change", "When
> Zero", "When Non-zero", "Transition To Zero", and "Transition To
> Non-zero".)

I would just like to point out that EPICS R3.13 supports a new "CPP"
input link attribute which says "make a link a CA link and process a
passive record whenever the referenced channel delivers a CA monitor".

This is very powerful (you can use it on _any_ input link) and has
replaced our use of the wait record.

William

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System