Experimental Physics and
Industrial Control System

Michael Davidsaver <[email protected]> · Tue, 30 Jan 2018 10:32:41 -0800

On 01/30/2018 08:20 AM, Simon Reiter wrote:
> Thanks so far.
> 
> postEvent 2
> works fine.
> 
> Up to now, my event record has an INP field, which links to a calc record.
> This calc record only provides the correct value under some conditions.
> How can I do this without using a state machine?
> 
> record(calc,"$(BOARDNAME):ErrorFlags:calc")
> {
>   field(INPA, "$(BOARDNAME):InitDone:S CPP")
>   field(CALC, "A ? 2 : 0")
> }
> 
> record(event, "$(BOARDNAME):ErrorFlags:trg")
> {
>   field(INP,  "$(BOARDNAME):ErrorFlags:calc CPP")
> }
> 
> This is my current code. The value of event is now 2.000000 in the correct case.

Please have a look at the following example DB, which works as expected for me.
If this result doesn't make sense to you, then please post a complete example DB
which I can use to reproduce your problem.

> cat <<EOF > event.db
> record(event, "evt") {
>   field(VAL , "2")
>   field(TPRO, "1")
> }
> 
> record(longout, "blah") {
>   field(SCAN, "Event")
>   field(EVNT, "2")
>   field(TPRO, "1")
> }
> EOF

I run this with

> $ softIoc -d event.db

I then scan the "evt" record and see that the "blah" record is also processed.

> epics> dbpf evt.PROC 1
> _main_: Process evt
> DBF_UCHAR:          1 = 0x1   
> cbLow: Process blah

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System