#SCADA simulation
set.seed(666)
upper_limit =1.5
sims <- 50
turb <- abs(rnorm(sims))
time <- seq.POSIXt(as.POSIXct(Sys.Date()-1), by=30, length.out=sims)
plot(time,turb, type="l")
abline(h=upper_limit, col="red", lwd=2)
exceedances <- turb > upper_limit