Re: Convertion for asynFloat64

[Benoit <benpaka.spam@gmail.com>]

Hi Lewis,

about my previous problem I was wondering if I could do the conversion in one step with something similar as below (This does not work)

record(ao, "$(S):$(D)_$(C):CavVSet")
{
   field(DTYP, "asynFloat64")
   field(OUT,  "@asyn($(PORT),$(ADDR),$(TIMEOUT))cavvolt")
   field(VAL, "0")
   field(PREC, "2")
}
record(calcout, "$(S):$(D)_$(C):CavMilliVSet")
{
field(OUT, "$(S):$(D)_$(C):CavVSet PP")
field(OCAL, "1000 * VAL") 
field(PINI, "YES")
field(PREC, "1")
}

Actually I am doing as below, but I need a temporary record to perform this conversion, and It would be simpler to use one record less.

record(ao, "$(S):$(D)_$(C):CavMilliVSet")
{
field(DESC, "CavMilliVSet Temporary Set Record")
field(PINI, "YES")
field(EGU,  "mV")
field(PREC, "1")
}
record(calcout, "$(S):$(D)_$(C):CavMilliVCalc")
{
field(OUT, "$(S):$(D)_$(C):CavVSet PP")
field(CALC, "1000 * A")
field(INPA, "$(S):$(D)_$(C):CavMilliVSet.VAL CP MS")
field(PINI, "YES")
}

Regards

--
Benoit RAT
www.neub.co.nr

On Wed, Nov 20, 2013 at 10:45 AM, Benoit <benpaka.spam@gmail.com> wrote:

Hi,

I was afraid that asynFloat64 did not support the LINR field since there is nothing in asyn documentation.

I didn't want to create a CavMilliVolSet field but I think I don't have any other solution if I don't want to modify my driver.

Thanks a lot for the help... The support with this mailing list is fantastic!!!

--
Benoit RAT
www.neub.co.nr

On Tue, Nov 19, 2013 at 8:28 PM, J. Lewis Muir <jlmuir@imca-cat.org> wrote:

On 11/19/13 11:15 AM, Benoit wrote:
> Hi,
>
> I would like to use mV in my EPICS folder and send V to my driver.  I
> have done conversion correctly using asynInt32 type but it doesn't
> work with asynFloat64.  Do you have any suggestion?

Hi, Benoit.

Remove the PINI, LINR, and ESLO fields from CavVoltSet.  Add a calcout
record named CavMillivoltSet to convert to V and write the value
via its OUT field to CavVoltSet.  Set the PINI field to "YES" on
CavMillivoltSet.

Lewis