Experimental Physics and
Industrial Control System

An IOC provides a (floating point, if that matters) number that
depends on something in this IOC to another IOC where it needs
to be added into a calc record. We do this in other places, and
in itself it isn't a problem. The question I have is:

What happens if the first IOC is switched off?
(The number it contributes should be switched to 0.0 before it
is turned off. This IOC may be switched off for months at a
time.)

Will the calc record treat the non-existing input as a 0?
Will it also do so when it is rebooted?

Maren
(trying to avoid putting in a switch)

Replies:

Re: calc record question Marty Kraimer

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