Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Wed, 1 Sep 2010 10:19:35 -0500

Hi Andrew,

On Tuesday 31 August 2010 20:04:29 Andrew Wagner wrote:
>
> I have a Calcout record that needs to calculate the time between its
> present and previous processing. How can I best accomplish this? Searching
> the tech-talk forum I've found that there is DTYP, "Soft Timestamp" which I
> suppose gets the system time. I would like to compute the time difference
> in seconds so is it possible to create an AI record
>
> record(ai, "TIme") {
>   field(DESC, "System Time")
>   field(DTYP, "Soft Timestamp")
>   field(INP, "%s")
> }
>
> that gets seconds since the epoc I can use as an input to Calcout record?

That should work and be more efficient than the other suggestions to use the 
stringin device support, although you don't have to set the INP field at all 
as it is ignored by the device support.  If you're having problems it might be 
that it doesn't like parsing the %s, so either take out INP altogether, make 
it blank, or just set it to "@".

- Andrew
-- 
The best FOSS code is written to be read by other humans -- Harald Welte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System