Up/down timers

[philip]

@ben orchard

Also, keep in mind that we should be looking at using the I/O as much as possible for timers using the ‘start on pulse’ and so on.
The benefit of this is they survive a download with no added code.

I would really like to utilize the start on pulse and start off pulse features, but unfortunately you can’t check if a pulse is currently running from PAC control, so you still need some sort of status flag to let your strategy know you sent the pulse command. Might as well use a timer in the strategy at that point.

I would like to be able to do something like this:

//Start the fan after 30 second delay
if( IsOff(Fan) && PulseTime(Fan) == 0.0 ) then
StartOffPulse(Fan, 30.0);
end if

Without some sort of way to check if the pulse is running, that code won’t work.