Experimental Physics and
Industrial Control System

[email protected] · Tue, 28 Sep 2010 15:58:38 -0700

No one suggested this but ... you can also put your constant as input!
0.00835 then becomes D, etc...  with just that change you saved 12 chars!
  ;-)
--
E

On 13:03 Tue 28 Sep     , Andrew Wagner wrote:
> Hey everyone, 
> 
> I need to evaluate a somewhat complicated conditional statement in a calc record. Presently I need to evaluate: 
> 
>  field(CALC, "(235>B && 5>D && 5>E) ? (B*0.00835 - 0.7 > A + (C-B)*0.25 ? B*0.00835 - 0.7: A + (C-B)*0.25): 0")
> 
> where the letters are input variables. When I load the record I get the error
> 
> Can't set "VOLT:PID.CALC" to "(235>B && 5>D && 5>E) ? (B*0.00835 - 0.7 > A + (C-B)*0.25 ? B*0.00835 - 0.7: A + (C-B)*0.25): 0"
> Error at or before ")" in file "MagnetCtrlApp/Db/MagnetCtrl.db" line 113
> 
> Does CALC not support nested evaluations? Perhaps I need a subroutine record? Any advice would be greatly appreciated. 
> 
> Cheers, 
> 
> Andrew
> 
> 

-- 
Emmanuel

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System