Hi,

> I am working on pmsystem 747-400, I am not able to find a solution to
> check
> if a specific variable was larger or smaler x seconds before.
> For example Autobrake in landing situation is shut down to off if manual
> braking is done OR if Speed brakes are moved down. How can I check if
> speed
> brakes are moved down? That means not only checking the actual state of
> speed
> brake = 0 but also checking that the value e.g. 1 sec. before was > 0.
> thanks for help

I added a command (to be used like 'random') called timer, it starts
counting seconds up to 10000 from the time pmSystems is started.

You could use it in the form of:

myvariable = timer

and then check on the difference.

Ciao

Enrico