Experimental Physics and
Industrial Control System

Look at the scalcout record:

http://htmlpreview.github.io/?https://github.com/epics-modules/calc/blob/master/documentation/sCalcoutRecord.html

Mark


-----Original Message-----
From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Randall Cayford via Tech-talk
Sent: Monday, January 25, 2021 2:16 PM
To: Engbretson, Mark S. via Tech-talk <tech-talk at aps.anl.gov>
Subject: changing unit string to scale factor

I have a device which returns a value and a string indicating the units of the value.  I’ll get inputs like 0.3nA or 3.4mA, etc.  Since I want to report the value in a consistent unit, I want to convert the unit string to a scale factor (nA=1, uA=1000, mA=10000) and then use a calc record to scale the value.   CALC records seem to only take numbers as input and I don’t see any other appropriate record type.

In programming I would use a case statement or if-elseif constructs.  How do I do this with EPICS record processing?

Randall
LBNL

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changing unit string to scale factor Randall Cayford via Tech-talk

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