Re: Naming bits in an mbbiDirect record

[Han Lee via Tech-talk <tech-talk at aps.anl.gov>]

Hi William,

I used a similar workaround some years ago.

I kept the status bits in an mbbiDirect record and used a separate mbbi record whose state strings (ZRST, ONST, TWST, etc.) served strictly as labels for the corresponding bits. This avoided creating a separate PV for every bit just to provide a name.

For reference, here is the DB file:

https://github.com/jeonghanlee/danfysik-mps8500/blob/master/mps8500App/Db/mps8500.db

For bits that require independent alarms or processing, using separate bi records is still the better approach.

Best regards,
Han

On Thu, Sep 3, 2026 at 2:21 PM William Badgett via Tech-talk <tech-talk at aps.anl.gov> wrote:

Is there a way to provide individual descriptions for each bit in an mbbiDirect record?

Thanks

William Badgett

Accelerator Complex Technology Division - Controls

PIP-II Accelerator Systems Controls

Fermi National Accelerator Lab

Kirk and Wilson Roads, MS 360

BTE-214 Booster Tower East Room 214

Batavia, IL 60510 U.S.A.

badgett at fnal.gov

--

Jeong Han Lee, Dr.rer.nat.

Staff Scientist and Engineer

Lawrence Berkeley National Laboratory

https://orcid.org/0000-0002-1699-2660