Experimental Physics and
Industrial Control System

"Shen, Guobao via Tech-talk" <tech-talk at aps.anl.gov> · Tue, 7 Jul 2020 15:51:34 +0000

Adrian,
It seems that the value of PV does not change, which could result in no plot change in CSS OPI.
Like Mark pointed out, you might want to check your driver in that case.

An easy way is to use camonitor to confirm whether the array value of your PV updates as you are expecting.

Thanks,
Guobao

On 7/7/20, 10:32 AM, "Tech-talk on behalf of Mark Rivers via Tech-talk" <tech-talk-bounces at aps.anl.gov on behalf of tech-talk at aps.anl.gov> wrote:

    Hi Adrian,

    One simple explanation for what you are seeing would be that your driver is not calling the following:

    doCallbacksInt32Array(value, nElements, reason, addr)

    If your driver does not call that function when the array changes then records with SCAN=I/O Intr will not update.

    Mark

    ________________________________
    From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Adrian Martinez via Tech-talk <tech-talk at aps.anl.gov>
    Sent: Tuesday, July 7, 2020 5:17 AM
    To: tech-talk at aps.anl.gov
    Subject: Array PV doesn't update in CSS BOY

    Hi, I have an Asyn driver and one of the PV (asynInt32ArrayIn) doesn't update in CSS BOY.
    If you run the opi, the PV gets values but never update them again ( unless the opi is updated) .

    I attach the PV in .db file:
    record(waveform, "$(user):DInILKArrayPreRdbk")
    {
    field(DTYP, "asynInt32ArrayIn")
    field(INP  ,"@asyn($(PORT),$(ADDR),$(TIMEOUT))DInILKArrayPre")
    field(SCAN ,"I/O Intr")
    field(FTVL, "ULONG")
    field(NELM, "512")
    field(PINI, "YES")
    field(DESC ,"Interlock status array")
    }

    This PV is used by a widget, which runs a script, being my PV an 'input PV'.

    Can anyone help me with this?

    Thanks, Adrián.

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System