Experimental Physics and
Industrial Control System

Simon Reiter via Tech-talk <[email protected]> · Tue, 12 Nov 2019 13:46:28 +0100

Hi,

For this LED part, you may think of using a bo record. This allows to stay high
for a fixed time window and set back to low automatically. It would simply look
like this:

record(bo, "led")
{
  field(HIGH, "2.0")
  field(ZNAM, "0")
  field(ONAM, "1")
}

In case you want a separate button PV, use another bo record with OUT field to
"led PP" and that's it.

I am not sure about this counter with multiple SCAN fields and the time of 2
seconds, while you're only counting up to 10.

Cheers,
Simon

On Tue, 2019-11-12 at 06:07 +0000, enum riz via Tech-talk wrote:
> Hi Mark 
> 
> i made a counter which works fine when i press button it starts and after a
> fixed value it stop.but whenever i press again button it didnot
> work.(Independently it works but when i merge this in my file with other code
> it didnot start with next press button)
> i am sending code please tell me how it will reset and starts again when
> button press. I want a duration of 2 seconds. Led On for 2 second and then
> off.
> 
> 
> 
> 
> record(bi,     "b"){
>  field(SCAN,  ".1 second")
>  field(ZNAM, "0")
>  field(ZNAM, "1")
> }
> 
> record(calcout,  "t"){
>  field(SCAN,  ".1 second")
>  field(INPA, "b")
>  field(CALC, "A==1?1:0")
> }
> 
> record(calcout,  "counter"){
>  field(SCAN,  ".1 second")
>  field(VAL, "0")
>  field(INPA, "counter")
>  field(INPB, "1")
>  field(INPC, "t")
>  field(CALC, "C==1&&(A<=9)?(A+B):A")
> }
> 
> record(calcout,  "reset"){
>  field(SCAN,  ".1 second")
>  field(INPA, "counter")
>  field(CALC, "A<=9?A:0")
> }
> 
> 
> record(calcout,  "rst"){
>  field(SCAN,  ".1 second")
>  field(INPA, "reset")
>  field(CALC, "A==1?1:0")
> }
> 
> record(b0,     "out"){
>  field(SCAN,  ".1 second")
>  field(OMSL, "closed_loop")
>  field(DOL, "rst")
>  field(ZNAM, "0")
>  field(ZNAM, "1")
> }
> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System