Experimental Physics and
Industrial Control System

Linda,

I missed the fact that you might just need streamApp.dbd but I have not used
this support so I am not really sure which you need or if you need both. Looks
like if it was me I think that I would try this one first though.

Marty


On 09/04/2014 05:24 AM, [email protected] wrote:

I am trying to use an scalcout record with a stream device protocol  and  I need
to capture a string value  in one of the string fields.  I already have calcout
records working to do an equivalent job to capture a numeric field.  The
protocol makes use of the field name syntax to access the record letter fields.

The stream device online manual states scalcout  records are allowed since v2-1
and work since 2-6-1 of calc module, the IOC is built for linux-x86 with
streamDevice v2-5dls2, v3-1 of calc, with v2-8-1 of sscan and v1-8dls2-9 of
genSub under EPICS R3.14.11 and I have added dbd and library entries to the
Makefile for these modules.

I copied my functioning calcout record (with DTYP stream), changed it to
scalcout and edited it to call the protocol.

dbLoadRecords results in the following error message for the scalcout records:

Can't set "TS-VA-TURBO-03:GET:PARAM:DATATYPE4.DTYP" to "stream"

Examining the built dbd file I can find

device(calcout,CONSTANT,devCalcoutSoft,"Soft Channel")

device(calcout,CONSTANT,devCalcoutSoftCallback,"Async Soft Channel")

device(calcout,INST_IO,devcalcoutStream,"stream")

device(scalcout,CONSTANT,devsCalcoutSoft,"Soft Channel")

It appears that only Soft Channel DTYP is available to scalcout.  Was it wrong
of me to expect DTYP stream to be available or am I missing something from the
IOC or module builds?

Is there a working example of scalcout and stream being used together I can look at?

Thanks,

Linda


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