Experimental Physics and
Industrial Control System

                               Dear all,

                I’m using motor record 6-5. Let’s say my record’s name is simply RECORD. Some of the PVs are:

-          RECORD.LLM = 1350

-          RECORD.HLM = 1410

-          RECORD.VAL = 0

-          RECORD.RDBL = “A_VALID_PV”

-          RECORD.URIP = 1

-          RECORD.RRES = 1   

After boot, I wrote 1 in RECORD.STUP and RECORD.RBV received the value of the PV in RDBL, that was 1400. RECORD.VAL remained 0, as expected. But when I wrote 1 in RECORD.SYNC, the VAL field didn’t not change.

So I tried another test. I changed RECORD.LLM to -1 and I wrote 1 in RECORD.SYNC again. This time, the VAL field was updated to 1400.

I think that, if RBV is inside limits, there is no reason to block VAL update using SYNC.

Thank you,

                Márcio Paduan Donadio

                Computer Engineer – CNPEM / LNLS (Brazilian Synchrotron)