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<== Date ==> <== Thread ==>
Subject: Re: mbboDirect Bx fields don't update on alarm change
From: Sue Witherspoon via Tech-talk <tech-talk at aps.anl.gov>
To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Thu, 15 Sep 2022 23:34:01 +0000
Greetings,
     Was there ever a 'fix' for this?  I have a very simply db  where a mbboDirect feeds and AO record. The AO record writes to HW. During normal
operations the Bits are toggled on/off and that works. But during a maintenance period the engineers want to enter an integer value.  This does
not work anymore. It worked in 3.14 but now in 3.15 it doesn't.

I believe this is related to what Andrew was describing: https://epics.anl.gov/tech-talk/2021/msg01619.php
Did the Epics experts every resolve this?

Best Regards,
Sue Witherspoon
Jefferson Labs
Controls-Software
withers at jlab.org

My simple database:
record(mbboDirect, "MbboRec") {
  field(FLNK, "MbboAo")
}
record(ao, "MbboAo") {
  field(DOL, "MbboRec")
  field(OMSL, "closed_loop")
}

EPICS   3.14.11
 
devl06 [118]: caget MbboRec.VAL
MbboRec.VAL                    0
devl06 [119]: caput MbboRec.VAL 2048
Old : MbboRec.VAL                    0
New : MbboRec.VAL                    2048
devl06 [120]: caput MbboRec.BB 0
Old : MbboRec.BB                     0
New : MbboRec.BB                     0
devl06 [121]: caput MbboRec.BC 1
Old : MbboRec.BC                     0
New : MbboRec.BC                     1
devl06 [122]: caget MbboRec.VAL
MbboRec.VAL                    4096
devl06 [123]:
 
 
EPICS   3.15.6
 
devl06 [127]: caget MbboRec.VAL
MbboRec.VAL                    0
devl06 [128]: caput MbboRec.VAL 2048
Old : MbboRec.VAL                    0
New : MbboRec.VAL                    0
devl06 [129]: caput MbboRec.VAL 2048
Old : MbboRec.VAL                    0
New : MbboRec.VAL                    0
devl06 [130]: caput MbboRec.VAL 2047
Old : MbboRec.VAL                    0
New : MbboRec.VAL                    0
devl06 [131]: caput MbboRec.BB 1
Old : MbboRec.BB                     0
New : MbboRec.BB                     1
devl06 [132]: caget MbboRec.VAL
MbboRec.VAL                    2048
devl06 [133]: caput MbboRec.VAL 0
Old : MbboRec.VAL                    2048
New : MbboRec.VAL                    2048
devl06 [134]:

   
Replies:
Re: mbboDirect Bx fields don't update on alarm change Andrew Johnson via Tech-talk
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