Experimental Physics and
Industrial Control System

Steven Hartman <[email protected]> wrote:

> We have vacuum gauges with similar output. I just use an ai record to get
> the voltage from an ADC connected to the gauge. The ai is FLNK'd to a calc
> record which computes the value in Torr.

We do the same.  Alarms are generated by the AI record, then propagated
through the link to the CALC record, which is used on displays and in the
Alarm Handler.  This allows HYST to be useful even when the pressure
changes by many orders of magnitude.

----
Brian McAllister                    Controls Programmer/Beam Physicist
[email protected]                        MIT-Bates Linear Accelerator
(617) 253-9537                                           Middleton, MA

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