Led blinking

[slotimport]

Hello

How can I do to get a blinking led (half second on, half secon off) non dependig from any input / output?

I need a sequence, and then call it from led expression?

I get no experience with sequences.

Thanks, Oscar.

[AzeoTech]

The easiest way is to actually use a symbol control and use the blink expression to make it blink. The blink rate is determined by the refresh rate of the screen. If you want to script it, you'd need to create a variable that the LED component displays the status of, and then toggle that variable. So, let's say you have an input channel called MyChannel, and you want the LED to be off when MyChannel is 0 and blink when MyChannel is anything else. Use something like this:

global myChannelBlink = 0
read(myChannel) // ensure we have a value read
while(1)
   if (myChannel[0]) 
	  myChannelBlink = 1
   endif
   delay(0.5)
   myChannelBlink = 0
   delay(0.5)
endwhile

Then have the LED component look at myChannelBlink for its state

[vovganf]

ok!

if i have very many leds and i use one script => very big delay!

exist universal function "blink" for component.panel.BackColor or leds?

my english bad))))russia

[AzeoTech]

No. Use a symbol component instead, it has a blink Expression.

Can you post your script (or better, your .ctl document) to make it blink. There may be a simple reason for the big delay.