Image blink TM172

[otrotabi]

Is it possible to make an image blink with HMI logic? For example, if compressor is OFF because Compressor OFF timer is running (but the compressor would start if not) I could make a logic like this:

xCompWillStart := CompCtrl_OnOFF.xCommand AND ReadWordBit(CompCtrl_OnOff_udiCompMgmtStatus,29);

(I am making some simplifications here just to show the concept, I know this does not work like it is written here)

Then if I am developing for M171 I could write :

IF CompCtrl_onOff.xCompCommand

    sysLocalLeds[6] := 1 ;

ELSIF xCompWillStart THEN 

      sysLocalLeds[6] := 2 ;

ELSE

      sysLocalLeds[6] := 0 ;

END_IF;

I know I could generate a PLC logic to change a Status variable from TRUE to FALSE and eventually use that variable to handle the image visibility on the PLC but it demands some extra work at logic development.

I read about animation and image lists (I never actually used them) but it seems to be a similar concept, either one image or another would be displayed depending on the value of an animation variable.

I hope you get the idea of what I am looking for.

[Bastian_Schmitz · Accepted solution]

You could solve this via a procedur in the HMI part together with the systimer. 

At first you need to create a blinker with the system Timer.

Then you could use the BOOL Output of this blinker to change the visibliltiy of the object in a defind ryhtem.

(like 1s)

I would expect that you could find an example in one of the integrated TVDAs.

[otrotabi]

Thanks. You solved my main doubt, I thought I might be missing an easier solution. 

I will check the TDVAs.