Event on change of digital signal status

[rromele]

Hi,

a digital signal has a polling reading of 20sec if its value is TRUE every 20sec sends an email, how can I send the email only once when the signal status changes from False to True?

Thanks

000.json (1.3 KB)

[dceejay]

look at the RBE node

[rromele]

perfect!!!!
thank you very much for helping.
R.