EPICS Re: Use case for ao record HOPR != DRVH or LOPR != DRVL?

Experimental Physics and Industrial Control System

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Subject:	Re: Use case for ao record HOPR != DRVH or LOPR != DRVL?
From:	"Nicholas P. DiMonte" <[email protected]>
To:	"J. Lewis Muir" <[email protected]>, EPICS Tech-Talk <[email protected]>
Date:	Wed, 31 May 2017 10:28:51 -0500

I have several cases were I have a +/-10v DAC but only use the positiveor negative range.In one case the DRV[H/L] is set to +10v to -10v while the HOPR is set to0v and the LOPR

set to -10v.

Nick D.

On 5/30/2017 11:41 AM, J. Lewis Muir wrote:

Hello, Tech-Talkers!

I understand that for the ao (Analog Output) record, the HOPR and LOPR
fields are used for the display limits and the DRVH and DRVL fields are
used for the control limits.  However, I always end up setting HOPR =
DRVH and LOPR = DRVL.  What's a use case where the display limits would
be different from the control limits (i.e., HOPR != DRVH or LOPR !=
DRVL)?

Thanks!

Lewis

References:: Use case for ao record HOPR != DRVH or LOPR != DRVL? J. Lewis Muir

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