Experimental Physics and
Industrial Control System

Doug Murray <[email protected]> · Fri, 06 Apr 2007 17:10:18 -0700

Hi Ron, I've changed the ASL attributes in the motor record's DBD file here
at SLAC to meet our immediate needs for the LCLS.  This seems like a
reasonable set of fields to be at security level 0.

I've included the file so you can review it, and possibly use it to make up
the official version.

Best regards,
-doug

-- 

Doug Murray 
Stanford Linear Accelerator Center
LCLS Controls Department
2575 Sand Hill Road
Menlo Park, CA 94025 MS-102

On 3/30/07 11:42 AM, "Ronald L. Sluiter" <[email protected]> had this to
say:

> Hello Doug,
> 
> Sorry for the delayed response; I've been out of the office the
> past few days.
> 
> I've looked into this as far as finding ancient references (01/04/2000)
> to access security changes I made to the motorRecord.dbd file here,
> 
> http://www.aps.anl.gov/upd/people/sluiter/epics/motor/R4-1/motor_release.html
> 
> I don't understand why I made these changes. I'll have to look
> into this further and get back to you.
> 
> Best regards,
> Ron
> 
> Doug Murray wrote:
> 
>> Hi Ron
>> 
>> I was looking at the security levels associated with the fields of the
>> motor record (version 5.9 and 6.0) DBD file. The ASL settings for
>> these fields don¹t seem right.
>> 
>> In those files, the level for the standard Motion fields, VAL, VELO
>> and so forth are the default, ASL1, while the calibration related
>> fields like SSET, SUSE, MRES, etc. are set to ASL0.
>> 
>> These seem backwards to me. Am I misunderstanding the way that access
>> security is intended to be implemented for the motor records? I would
>> expect that the commonly used fields (for general use) should be ASL0,
>> and the ?calibration¹ fields should be only available at ASL1, which
>> also implies access to level 0.
>> 
>> Best regards,
>> -doug
>> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System