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<== Date ==> <== Thread ==>

Subject: Re: preventing changing an EPICS motor's commanded position
From: Kevin Peterson via Tech-talk <tech-talk at aps.anl.gov>
To: "Gregory, Ray" <gregoryrd at ornl.gov>, "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Tue, 3 Oct 2023 08:16:56 -0500
Ray,

Can you provide more details about what "disabling the axis" means? The behavior of the motor record's CNEN field, which is labeled "Torque" on the motorx_all screen, is controller dependent; for some controllers CNEN enables/disables drive power, for other controllers CNEN switches between open and closed loop control, and some drivers do nothing when CNEN is changed.

Kevin

On 10/2/23 12:32, Gregory, Ray via Tech-talk wrote:
Hi,

How can I prevent changing an EPICS motor record’s commanded position (.VAL field) without disabling the axis?

Thank you,

Ray

Ray Gregory

Oak Ridge National Laboratory


Replies:
RE: [EXTERNAL] Re: preventing changing an EPICS motor's commanded position Gregory, Ray via Tech-talk
Re: preventing changing an EPICS motor's commanded position Matt Newville via Tech-talk
References:
preventing changing an EPICS motor's commanded position Gregory, Ray via Tech-talk

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